Index to U.S. Army Air Corps Information Circulars. Part I. Heavier-than-air Circulars Nos. 1 to 565 inclusive. Part II. Lighter-than-air Circulars Nos. 1 to 157 inclusive.

              Auburn University Libraries
CSNFIDENTI Al ~ 1111m1~1m1111™m~~
File C 13/ 117 3 1706 025 85107 7
AIR CORPS INFORMATION CIRCULAR
PUBLISHED BY THE CHIEF OF AIR CORPS, WASHINGTON, D. C.
Vol. VI December 1, 1927 No. 565
INDEX
TO
U. S. ARMY AIR CORPS INFORMATION CIRCULARS
PART I-Heavier-than-Air Circulars Nos. 1 to 565 inclusi·ve
PART II-Lighter-than-Air Circulars Nos. I to 157 inclusive
UNITED STATES
GOVERNMENT PR! TING OFFICE
WASHINGTON
1927
Ralph Brown Draughon
UBRf\RY
MAY 2 9 Z013
tton·Depoitor~
Auburn un\verst\V
CERTIFICATE: By direction of the Secretary of War the matter contained
herein is published as administrative information and is required for the proper
transaction of the public business.
(n)
...,1
3
Airplanes-Continued. Information
D-VII-Fokker- ~ d Circular No.
Cooling Syst em Flight T est __ ______ ____ ___ ______ _____ _ -~-"~ __________ -~- _ __ __ _ _ _ _ __ _ 233
P erformance T est with Liberty Si.x Engine--------------- ~ -------- - --~ -------------- 71
P erformance T est wi th Packard "1237 " Engine ________ ---- - _ - - .,. -- __ -- -- -- - - -- -- - _ - -- 310
Sta tic T est of Chassis _________________________________ -------- - --- - --- - -- -- - - - --- - --- 29
Test on Steel Tubing and Wing Beams_________________________________________________ 104
D- VIII- F okker, P erformance T est '.\ith 110 H. P. Oberursel Engine ______ --- ___ -- - - -- - - -- __ --- 288
D- IX- F okker , P erformance T est ___________________________________ ------ -- __ ----- _ ____ _ _ _ 413
DB- 1, Wind Tunnel T est ______________________________ -- - _______ ---- -- - - - - - - - -- - -- -- __ - 467, 475
DH- Bellan ca , Sta t ic T est_ _____________________________ -- -- ____ ---- ---- - ------- -- - _ -- -- -- - 518
DH- 4---
Cooling Sy tern T est with Exp erim en t al Auxiliary Radiator_ ____________________________ __ 241
(D ayton-Wrigh t) Sta t ic Test of Fuselage_______________________________________________ 34
E conomy T est_______________________________________________________________________ 461
P er formance T est, E quipped as Corps Observation Airplane_______________________________ 287
P erformance T est with 300 H.P. Hi p an o-Sui za Engine__________________________________ 155
Radiator T est s _______________________________________ - --- -- - - -- -- -- -- -- - - -- -- --- -- - - 528
Static T est of Landing Chassis _________________ -- ____ ---- ---- - --- -- - - - ----- - - ---- -- -- _ 38
Static T est of Wing Cellule ________________________ --- _ -- -- -------- -- - --- ---- -- - -- ---- 36
Take-off Characteristics ______________________ ----- ______ - - -- ---- --- ----- ---- -- - _ - _ __ _ 4 0
DH- 4B-Cooling
System with Hispano-Suiza 300 H.P. Engine____________________________________ 156
Fuel Consumpt ion during Climb with Form " D " Supercharger_ ___________________________ 398
Fuel Consumption T est _________________________________ ----- __ -- -- - -- - -- - ------- -- __ _ 346
Wind Tunnel T est_ __ __ _____________________ ___________ --- ---- -- - -- - - - -- - --- --- -- _ -- _ 355
Wing Flap T est of Wind Tunnel ModeL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 552
DH-4C, Cooling System T est _________________________________ ---- __ ----_-------- __ --- - ___ 271
DH- 4M2 Mail, P erformance T est _____________________________ ----- - -- - -- - - - -- - - - - -- - - --- _ _ 386
DH- 4M2, Static T est of Fuselage ___________ ___________ ------- ___________ - ___ - _ - _ _ _ _ ___ _ _ __ 512
Day t on-Wright TA- 3, P erforma nce T est _________________ --- ----- __ --- - -- - - --- - - - - --- -- - _ _ __ 441
Dayton-Wright TA- 3, Static T est _________________________________ --- --- __ --- _____ __ __ --- _ 388
D esign, P erformance and Design Charts_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 183
D et ermination of Best Wing L oading for Single-Seater Pursuit Airpla ne_________________________ 315
Douglas C-1, P erformance T est _ _ __________________________________ - - ---_---- --- _ _ __ __ _ __ _ 546
Douglas 0-2-
Performance T est --- --- ------------- - ----- - - - -- - ----------------- - ------------------- 509
Performance T est wit h P a ckard "1500" Engine and Small Wings__ _______________ ________ 536
Sta tic Test _________________ ____ ____________ ___________ ______________________________ 554
E-8 Vought, P erformance E stimate _ ____________ ~---- ______________ ____ _ - - ----___ ________ __ 176
Elias NBS-3, Torsional T est of Fuselage____ __________ __________________________________ ____ 517
Elias TA- 1, P erformance Test_ ___________________________________________ --- ___ _ _ _ __ ___ ___ 412
Endurance I otes __ __ ________________________ _________ ______ ------- --- - --------- - - --- _ _ _ _ 210
Engineering Division C0- 5, P erformance T est ____ _____ _______ ______________ --- _ -- _________ 452, 534
Engineering Division XC0-6, P erformance Test __ _____ _______________________ ------_________ 521
FVL-8 P omilio, P erformance E stimate _____ _______ _________________________________________ 221
Fokker C0-4---
P erformance T est_ __ _____ __ _____ ___________________________________________________ 415, 507
P erformance Test with Nose Radiators __ _______________________________________________ 457
Performance T est wit h Side Radiators_ ____________________________ _____________________ 456
Fokker D-VII-Cooling
Syst em Flight T est_______________ ____________________________________________ 233
P erformance T est with Liberty 6 Engine _____ ___________________________________ ______ __ 71
P erformance T est wit h Packard 1237 Engine____________________________________________ 310
Static T est of Cha ssis ___ __ ___________________________________________________________ 29
T est on Steel Tubing and Wing Beams________________________________________________ _ 104
Fokker-
D-VIII, Performance Test________ ___ __ ______________________________________ _________ 288
D- IX, P erformance T est _____________________________________________________________ 413
PW- 5, Static T est of __ _______________________________________________________________ 406
PW- 5, Wind Tunnel T est ____________________________________________________________ 424
PW- 6, P erformance T est_____________________________________________________________ 413
PW- 7, P erformance T est wit h C urt iss D- 12 L o" ·-Compression Engine______________________ 529
4
irplanes-Continued. In formation
Fokker-Continued. Circular No.
PW- 7, Static Te t ____ __ ___ ______________ _ -- -- __ - -------- --- __ ---- --- ------ --- --- --- _ 491
T- 2, Investigation of the Structural Strength ______ __ ____________________ _______ _________ 420
TW- 4, Performance Te t___________________________ ____ ______________________________ 4H
GA-2A, Wind Tunnel Test_ ___ _______________________ --- ___________ ------ __ ---------- __ --- 476
GAX, Performance Te t_ _ _ _ _ _ _ _ _ _ _ _ _ _ 193
GAX- 1, Static Test of Chassi _ _ _ _ _ _ _ __ __ _ _ _ _ _ _ _ _ 171
GAX- 1, Static Test of Wing Structu re_____________________________________________________ 228
GH- 11 LePere, Performance Estimate____ ____________ __ ___________________________________ 219
Gallaudet-
DB- 1, Wind Tunnel Tc t_ _______________________________________ _ ______ _ ___________ 467, 475
PW- 4, tatic Tc t ---------------------- ---------------------------- ----- --- --------- 417
PW-4, Wind Tunnel Te L---------------------- - ------------------------------------- 472
Huff-Daland-
Performance Estimate of Biplace Training Plane__ ------------------------------------- 296
TA- 2, Performance Test with Curt iss OX- 5 Engine_______________________________ _______ 407
TA- 2, Performance Te t with Lawrance " R" Engine____________________________________ 411
TW- 5, Performance Te t with Wright "E" Engine____ __________________________________ 499
JL-6. See "Airplane, Junker ."
JN- 4, Impact Test of Tail kid and Landing Chassi ·-- ------- ------- ---- --------------------- 409
JN- 6, Cooling System Test with Packard lA- 744 Engine and Side Radiators____________________ 294
JN- 6H, Method of Correcting the Longitudinal Bala nce_ _________________________________ ___ 27
JV- Martin, Physical Te ts on K Bar Struts ______ _____________ _____ ___ _____ _______ __________ 101
Junker-
Biplane, Investigation of Wing ___ __ __ _ _______ ____ __ ____ _ ___ _ _____ ____ _ ____ __ _ 230
L-6, Static Test_ ___ ____________ ___ -_ - _______ - - ----- - - _ _ _ _ _ _ _ _ _ __ ____ __ _ 360
L-6, Stress Analysis __ _____ ____________________ __ __________________________ ___________ 332
L- 6, Wind Tunnel Test_ _______ ___ ______________________________ _____ ______________ ___ 367
SL-6, Performance Test ___ ______________ - - --_______ __ _______ _________________________ 173
Laddon, Wind Tunnel Test of Laddon ight Pursuit Airplane_________________________________ 33
LePere, Cooling System with Side Radiators_________________________________________________ 299
LePere GH- 11, Performance Estimate __________________ _ ------ ___ ------- - --________________ 219
Loening-
COA-1, Performance Test __________________ ------________ _____________ ____ __ ____ _____ 540
M- 8, Cooling System Test_________________________ ___________________________________ 206
PA- 1, tatic Test (see Addendum)_-- ------ --------------- ------------ --- -------------- 35
PW- 2, Performance Test ___________________ --- - ----- -- --_____________________________ 434
PW- 2A, Performance Te t------ ----------------------------------- - ------------------ 416
PW- 2B, Performance Test____________________________________________________________ 433
XCO- , Performance Test, equipped with Loening Wings_________________________________ 522
Monoplane, Performance Test_________________________________________________________ 50
M- 8 Loening, Cooling System Test_________________________________________________________ 206
MB- 2, Martin Bomber, Cooling System________________________________________ ____________ 264
MB-3 Thomas Morse, Performance Test_____________________________________ ______________ _ 40
MB- 3 Thomas Morse, Wind Tunnel Test____________________________________________ ___ ____ 468
MB--6 Thomas ~orse, Static Test_______________________ __ _________________ ___ _____________ 362
Mail DH4-M2, Performance Test____________________________________ ___ ___________________ 3 6
Martin Bomber-
MB- 2, Cooling ystem_ _ _ _ _ _ __ _ __ ____ _ ___ __ ____ __ __ __ __ ______ _ __ _ ____ ____ _ 264
NBS-1, Performance Test _____ _________ ___ _______________________________ ______ ____ _ 290, 435
NBS-1, Torsional Test______________________________ ________ _________________________ 515
Static Te t of Elevator Controls___ _______________ _________ __ ____ ________________ __ ____ 424
Test of Davis 3-inch Jonrecoil Cannon________________ _________________________ ________ 342
Martin JV, Physical Tests on K Bar Struts_______ ___ __________________ ____ _________________ 101
Martin Torpedo Airplane, Performance Test_____________________________________________ ____ 139
Messenger-
Performance Test__________________ _____ _____________________________________ ________ 280
Static 'fest------------ - ----------------------------------------------- ------------- - 270
Wind Tun nel Test________________ _____ ______________ _____________ ___ ________________ 43
Morane Saulnier Type AR, Performance Te t_________________________ ________________ ___ ___ 2 5
5
Airplanes-Continued.
NBS- 1-
Information
Circular 'o.
Curti s, Performance Test________________________________ ________ ____ _________________ 435
Martin Bomber, Performance Test_ __________________ _____ ___ __ ________________________ 290
Martin Bomber, Torsional Te t --- - ------------------- - - ---- - --------- -------- - - - --- --- 515
NB - 3 G. Elias, Torsional Test of Fuselage __________________ ________________ _________ ___ ___ 517
BS-4, Curt is , Torsional Te t of Fuselage_________ ______ ________ ____ ______________________ 513
Night Pursuit, Ct1rti s, Stat ic Test___________ ____ __ ___ ___ ______ _____ __ _________ ____________ 266
Night Pur uit PW- 2, Design and Stress Analysis of Wings______ ___ ___________________________ 150
No. 1 Curtiss, Performance Te t with Liberty 12 Engine_____ __________________ _______________ 530
No. 1 Curtiss, Performance Test with Packard " 1500" Engine__ _______________________________ 53
0 - 1 Curtiss, Static Te t_ _ _ _ __ _ ____ ___ __ _ _ _ __ _ _ __ ___ _ _ __ __ _ __ _ _ _ 539
0 - 2 Douglas-
Performance Test with Liberty 12 Engine _____________________ _____________________ ____ _
Performance Test with Packard " 1500" Engine ________________________________ ______ __ tatic Test ______ ____________________ ___ ___________________________________________ _
Ordnance D-
509
536
554
Armament Test-------- ----- - --- - ----- - - - --------------------------------------- - --- - 14
Cooling System_________________________________________________ _____________________ 144
P erformance Te t_ __ __ ____ _ _ ____ _ _ __ ______ __ ___ _ ___ __ _ _ __ ___ __ _____ ______ _ 51
Orenco " D " Curtiss, Performance Test _____________________________________________________ 306
PA- 1 Loening, Static Test (see Addendum)_ ______ ______ ______ ___ _________ ___________________ 35
PG-1, Wind Tunnel Test__ _________________________________ __________________ ____________ 166
PG-1, Static Test__ __ _____ ____________________________ ____ __________ _____________________ 365
PT- 1, Performance Test ________________________ ----------- ______________ _________ ______ 526, 527
PT- 1, Static Test________________ ___________________________________ ___ __________________ 559
PW- 1, Structural Design of Cabane Struts _______ ___ ___________________ ___ ________ __________ 172
PW- 1, USA- 27 Wing ------ - ___ _ _ __ __ _ ___ _ __ _ __ _ _ _ _ _ __ __ __ ___ _ __ _ _ _ _ __ __ _ _ 225
PW- 2, Loening, Performance Test ____ ______ ___________ _______ -----------__________________ 434
PW- 2, Design and Stress Analysis of Wing _ _______ _ _ _ ___ ___ _ _ __ _ __ _ _ ___ _ _ __ 150
PW- 2A, Performance Test________________________________________________________________ 416
PW- 2B, Performance Te t _____________________ ______________ --- -- ------- ____ ------ __ _____ 433
PW- 4, Static Te t ______________________ _____________________________________ ------- __ _ 417
PW- 4, Wind Tunnel Te t ______ ______________ ____ ____________ ________ ___ _____ _____________ 472
PW- 5, ta t ic Test_____ _____ ____________________ ________ _________________________________ 406
PW- 5, Wind Tunnel Test ___ ________ _______________ ___ _________________ --- ___ --- -- -- --- __ _ 474
PW- 6, Performance Test ________________________________________________________ -----____ 413
PW- 7, Static Test __ __ __ ___ ___ ___ _______ ___ _____ ___ _____________________ _____ ____ ___ -- _ _ 491
PW- 7, Performance Tc t with Curtiss D- 12 Low-Compres ion Engine_____ _________________ ____ 529
PW- 8, Static Test ______ _____ __ _____ ------------ ___ ___ - - ---------- --- ___ ------ -- __ -- --- - - 492
PW- 8, Wind Tunnel Te t _________________________________________________________________ 501
PW- SA, Performance Test with Curti D- 12 Low-Cornpre sion Engine_________________________ 496
PW- 9-
Performance Test with Curtiss D- 12 High-Compression Engine______________ _________ _____ 479
Performance Test with Curtiss D- 12 Low-Compression Engine__________________ _________ __ 502
Static Test___ _____ _______________ _____ ____ _____ ____________________________ ______ ___ 466
Performance-
Empirical-Theoretical Method of Comparative Prediction of Airplane Performance__________ 6
Performance and Design Charts __ ____ _________________________________ _____ _____ -- - --__ 1 3
Performance from the Standpoint of Modern Conception of Drag __________ ______ __________ 560
Theoretical Method of Analyzing and Predicting Airpla.ne Performance_____________________ 553
Phillips "Alouette," Stre s Analysi ----------------------------- - -------------------------- 520
Pomilio FVL-8, Performance E timate___ ________ __ ___ ______ ______ __ __ ______ _____ ______ ____ 221
Pomilio PVL- , Static Te t of Wing Cellule with Unequal Loads on Right and Left Wing ________ 25
Pursuit--
Comparative Study of Type I Airplanes with Various Power Plants ___________ _____ ________ 307
Design Characterist ic for Most Suitable P ursuit Airplanes______________________ ___ ________ 436
Determi nation of the Be t Wing Loading___________________ ______ ______________________ 315
Wind Tunnel Test of Laddon ight Pursuit Airplane_ __________________ __________________ 33
Roland D- VI- B, Performance Test_ ____________ ________________________________ --- ___ -- _ _ 132
S-6, Thomas Morse, Performance Test __________________________________ -- __ -- -- - --- -- - - - - - 109
E-5, Static Test of Ski_ __________ ___________ __________________________ -- _ - _ - - - - - - - - - -- _ - 322
SL-6 J unker, Performance Te t __________________ __ ______ __ ___ ______________ - - - - - - - - - - - - -_ - 173
I I
6
!n!ormation
Airplanes-Continued. Circular No.
Spad 13, Performance Te t with 220 H.P. Wright Engine________ ______ ___________ ____________ 286
pad 16- A, P erformance Estimate with 236 H.P. Lorraine-Deitrich Engine_____________________ 153
Stability of Airplan s __________________________ - _ - --- ______ - _______ -- - _ _ _ _ _ _ _ _ _ 548
'l'-2 Transport, InYestigat ion of the tructural Strength______________________________________ 420
TA- 1 G. Elias, Performance Test with Lawmnce R- 9 Engine_ ________ ___ _________ ______ _______ 412
TA- 2 Huff Daland, Performance Test with Curtiss OX- 5 Engine_____ ___ ______________________ 407
TA- 2 Huff Daland, Performance Test with Lawrance "R" Engine______ ____ ___________________ 411
TA- 3 Dayton-Wright, Performance Test_ ___ --------- --- --- -- - --- -- --- --- - --- __ --- _ _ ___ ___ _ 441
T A- 3 Dayton-Wright, Static Test_________________________________________ ___ ______________ 388
TA- 4, Wind Tunnel Test_ ________ _______________ __________________________ ------_ ________ 455
TW- 1, Test of Cooling System____________________________________________________________ 410
TW- 2 Cox Klemin, Static Test______ ______________________________________________________ 437
TW- 4 Fokker, Performance Test ___________ --- ___ --- _ --- ----- ____ ---- --- --- ------ _ __ _ 414
TW- 5 Hnff-Daland, Performance Test _______________ ______________ ------ ____ -----__________ 499
Thomas-Morsfr--.-
MB-3, Performance Test_________________________________________________________ ____ 40
MB- 3, Wind Tunnel Test________ _______________ ___ ___________ _______________ ________ 468
MB- 6, Static Test ___ _______________ ______________________________ ----------_________ 362
S--6, Performance Test_ __________ ___ ______________________ __ __________________________ 109
Tires. See " Tires ."
Transport , Wind Tunnel Test ____________________ ___ ___________________ ------_____________ 533
Tran port T- 2, Investigation of the Structural Strength ______________________________________ 420
Type 1, Comparative Study 'iYith Various Power Plants___________ _____ ______________ ___ ______ 307
V-40 Fokker, Wind Tunnel Test___________________________________________________________ 472
VCP- 1, Cooling ystcm Test with Annular Radiator_ ___ ----------______________ __ ________ __ 245
VE--7 Vought, Pressure Distribut ion over the tabilizer__________ ____ ____ _______ _______ _____ _ 419
Verville Racer, Wind Tunnel Test--------------- - ----- - --- - --- - ----------------- - --------.- - 107
Vought---
E--8, Performance Estimate ________ __________________________________________ __ ------- 176
VE--7, Pressure Distribution over the Stabilizer__ ______ __________________________________ 419
XV avy Type, Performance Test_____ _____________ ____ _______________________________ 352
Weight, Structural Weight Analysi ------------------------- ----- --------- - ----- -- --------- 39
Wheels. See "Wheels."
XB- 1-A-Comparative
Performance Test with High Compression Wright Model " H " and Packard " 1237"
Engines---------- ---- ----------------------------- -- ------------------- --- -------- 327
Performance Test _______________________________ ____ _, ________________________________ 37, 65
tatic Te t of Fuselage_______ ___________________ ___________ _______________ _______ ___ _ 338
XV Vought, Navy Type, P erformance Test___ ____________________________________________ __ 352
Air Service, Characteristics, Limitations, and Employment________________________________________ 72
Air ervice ManuaL _ _ _ _ _ __ _ _____ ____ __ _ ___ ___ __ _ _ __ _ ____ __ ____ ___ ___ __ _ _ _ _ 84
Airways and Landing Facilities_--- --------------------------- --- ------------------------------ 404
Alcohol-Gasoline Mixtures_______________ ____________ ___ __________ _____ ___________________ ___ _ 450
Alcohol-Water Mixtures, Tables bowing Freezing Points and Specific Gravity______________________ 17
Alloy Steels, Cause of Cracking during Dip Brazing_- --------- --- - --------------- --------------- - 295
Alloys :
Copper-Silicon-Aluminum Alloys with and ~ithout Manganese____ ___ _____ ___ ________________ _ 385
Physical and Met allographic Properties of Copper-Zinc-Aluminum Alloys Containing Small Amounts
of Magnc iun1__________ _________ ______________________________________________________ 393
1etallography of Sand Cast Aluminum Alloys__________ ________ ____ ______ ________ ___________ 449
Z-D Process for Treatment of Light Alloys to Inhibit Corrosion and to Minimize Poro ity__ ______ 44
Almen. See " Engine."
Alouette. See " Airplane."
Alsop, Test of Alsop All-Spark Ignition Device __ ------------------------------------- - ------- - -- 18
Altitude, Standard Altitude Chamber Test for Engines _____ ______ ___ ___________ _______ ___________ 106
Altitude, Variation of Hor epower with Altitude______________________________________ ___________ 92
Aluminum:
Physical and Chemical Properties of Aluminum and Aluminum-Alloy Sheets-
Part I ----------------------------------------- - --------------------- --- --- - ----- --- 123
Part!! _________________________________ _________ ___________________________________ 208
Pa rt Ill _______ ____________ ----------------------------------------------------- --- 235
7
Information
Aluminum Alloys: Circular No.
Copper-Silicon-Aluminum Alloys with and without Manganese_ ___ ___ ____ ______________ _______ 385
Metallography of Sand Cast Aluminum Alloys____ ____ ___ ___ ____ ___ _______________ ___________ 449
Physical and Metallographic Properties of Copper-Zinc-Aluminum Alloys Containing Small Amounts
of ~1agnesium _________________________________________________________________________ 393
Aluminum Bronze, Methods of Making Aluminum Bronze Castings___ _____ _____ _________ _____ _____ 376
Aluminum Solders____ _____________ _____________________ ___ __ ____ ____ ___ ___ _____ ____________ _ 298
Ambulance A-1, Wind Tunnel Test__ _______ _______ __________ __________ ______________ ____ ___ ___ 463
Ammunition, Pyrotechnic Projector and Ammunition Submitted for Test____ _____________________ ___ 389
Ammunition, Test of French 37-millimeter High Explosive__ _________ _________ _______ ____ __ _____ __ 19
Analysis of Supercharging______________ ________________________ ________________________ _____ __ 195
Angular, Method for Determining the Angular Setting of a Tail Plane_________________ _____ _______ _ 102
Angular Velocity, Controllability, Angular Velocity, ::mcl Dynamic tability of an Airplane about the A,,is
of Pitch---------------------------------------------------------- - - --------- ------- ------- 41
Anti-Knock, Elimination of Detonation by the Addition of Xylidine, Ortho-Toluidine, Benzol, and
General Motors Anti-Knock No. 1--- --- -- ---------- --- ---- ----- ------------------- -- - ------- 319
Anti-Knock, Flight Test of Anti-Knock Injector_________________________________________________ 372
A0-1. See "Airplane. "
Armament, Test of Orenco Type D Biplane______________________________________________ ______ _ 14
Armor Plate, Ballistic Properties of a Special Case-Hardening High Chrome-Nickel Light Armor Plate__ 234
Armor Plate, Cork and Air Spacing of Light Armor Plate___ __________ ____ ___________ ______ _______ 242
Aspect Ratio of Single-Bay Pursuit Biplanes________ ____________ _____ _____ ___ _____ _______ ________ 260
Assignment, Observation , Selection, and Assignment_ _______ ___ ______ _____ ____ _____________ ______ 120
Atlantic. See "Airplane."
Automobile, Radio Equipped Autolllobile_ ---------------------------------------------------- -- 185
B
BI-A. See "Airplane XBI-A."
Back Suction and Air-Bleed Type Mb:ture Controls, Test of_______________________________________ 368
Baker & Lockwood, Performance of Hangar (Tent) Manufactured by Baker & Lockwood Mfg. Co_~-- 187
Baldwin Cannon. See "Cannon."
Ballistic Properties of a Special Case-Hardening High Chrome-Nickel Light Armor Plate____ __________ 234
Ballistic Properties of a rano-Silico ickel SteeL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 186
Balsa Wood, Use in Plywood--- --- ------------ ------------------------------- ----------------- 473
Bamburg, Speed Measuring Station _____________________ -------________________________________ 397
Barograph, De Bothezat Type" A"-------------------------------------------- - --------------- 439
Bath, Heat Treating Bath Composed of Sodium Chloride, Sodium Carbonate, and Sodium Cyanide_·· -- 363
Battery, Liberty Storage Battery Endurance Test___________________ _____________________________ 301
Beams:
Charts for Solution of Stress in Wing Beams _________ ______ ____ ___ ·-__ ______________________ _ 555
Deflection of Beams of Nonuniform Section ___ _____________ ________ ______________ __ - --- --___ 213
Design of Plywood Webs for Box Beams____________________________________________________ 516
Effect of Routing on Modulus of Rupture and other Strength Properties_______ ________________ 240
Movements of the Points of Inflection on Beams under Various Combinations of Loads________ ___ 471
Bellanca DH. See "Airplane."
Benz. See "Engine."
Benzol, E.limi.nation of Detonation by the Addition of Xylidine, Ortho-Toluidine, Benzol, and General
Motors Anti-Knock o. !___ ___ __ _ _ _ _ __ _ _ _ _ _ ___ _ _ _ _ __ __ _ ___ _ _ _ ____ _ __ _ ___ _ ___ ________ _ _ __ _ _ _ 319
Bijur Ignition. See " I gnition. "
Bijur Starter. See "Starter."
Biplane, Pursuit Single-Bay, Economic Limit in Aspect Ratio ____________________________ - - ----- -- 260
Blower Used in Tests of Air-Cooled Cylinders _____ ______________ ______ ____ ____ ___ - - - - - - - - - - - - - - - 345
B. M. W. See "Engine."
Boeing. See "Airplane."
Bomb Racks, Modified Weed Shackle_____ _____________________ ____ _____ ______ __ ____ ____________ 305
Bombardment:
Aerial Day Bombardment, Pilots and Observer ___________________ _______________ -- - - - - - - - - - 141
Aerial Tactics, Observation, Bombardment, Pursuit-Combat_ ________ _________ ______ - - -- - - - - -- - 8
Tactical Manual of Aerial Bombardment_ __________________ __ _____________________ _______ - - 140
70792-27--2
8
Information
Bombardment Manual, Aerial: Circular No.
Part 1, Introduction and Preface__ __ _______________________________________________________ 54
Part 2, Rules and Regulations ___________________ ______________ _______________ ________ ____ _ 55
Part 3, Organization of Training Department and Ground Training for Pilots and Bombers__ _____ 56
Part 4, Flying Training for Pilots and Bombers________________________________________ ______ 57
Part 5, Operations (Service Squadrons) and Appendi'C_ _ _ _ _ _ 58
Bomber. See "Airplane."
Books, Aeronautical Book and Magazine List ____ _____________ --------------_ __________________ 21
Braender, Test of Braender Leakproof Tanks ______ __________ ____ _____ ______________________ - - _ - - 113
Brass:
Dip Brazing >1<ith 80-20 Brass__________________________________ _______________________ ____ 203
Dip Brazing with High Melting Point Brass____ ________ __ _________________ ____ _____ _________ 297
Forged and Cast--------------------------------------------- - ---------------- - ---------- 335
Brazing:
Cause of Cracking of Alloy Steels during Dip Brazing ______ ·----------- - --------- - -------- - -- 295
Dip Brazing with 80-20 Brass_________________________________________________ ___ _____ ____ 203
Dip Brazing with High-Melting Point Brass___ ____________________________ ____ ______________ 297
Brewster-Goldsmith. See "Spark Plugs."
Bronze Castings, Manganese, Methods of Making, to Meet Air Service Specifications o. 11021- _ 27 5
Buzzer Starter, Fifty-hour Endurance Flight Test________ ___ _____________________ ________________ 302
c
C-1. See "Airplane."
C-8. See "Synchronizer."
Cadmium, Plating by Means of Udylite Process____ _____________ __ _______________________________ 545
Calculations, Standard Method of Engine Calculations____________________________________________ 421
Cam. See "Engine."
Cam-Shaft, Comparative Mathematical Analysis of the Stresses in the Cam-Shaft Drive Gears of the
Liberty "12" and the Packard "2025" Engines___ ___ _____________________ __________________ __ 423
Cannon:
Baldwin, Ground Test of Baldwin 37-millimeter Cannon______________________________________ 215
Coventry, Ground Test of Coventry 37-millimeter Mark III Airplane Cannon___________________ 226
Davis 3-Inch, Test of Davis 3-Inch Ionrecoil Cannon Mounted in Martin Bomber_______________ 342
Ground Test of Cannon Turret Mount___________________________________________________ ___ 112
Ground Test of 2.95-Inch Airplane Cannon in Martin Bomber____________ ________ ___ _____ _____ 146
Tests of Modified Firing Mechanism for Baldwin 37-millimeter Cannon------------------------ 24
Test of 37-millimeter Automatic Cannon in Cannon Engine __ ---------- - --- _______ -------- ---- 32
Time Study of the Movement of the Firing Mechanism of the 37-millimeter Automatic Baldwin
Cannon------------ - - - -------------------------- -- ---- - - - - - --- - ----- - ----------------- 16
Cannon Ring Mount, Type" A" Test------- -- ------------ - --------------------------- --------- 283
Carburetor:
Calibration of Jet Flow Carburetor_____________________________________________________ ____ 243
Effect of Fuel Head at Carburetor on Brake Horse Power and Brake Specific Fuel Consumption___ 336
Instructions to Designers___ ____________________________________ ___ _________ _____ _______ __ 291
Metering Characteristics, Control of Carburetor by Supplementary Admission of Air____________ 292
Mixture Controls, I nstructions to Pilots ____________________ ________________ ·________________ 257
Sediment Deposit in Carburetors__________________________________ ___ _____________________ 390
Setting for the Liberty Engine for Dirigible Use________ __ ______ ________ __ ___________ __ __ ____ 311
Stromberg:
NA-D6, Test to Improve Fuel Consumption Characteristics on the 300 H. P. Hispano-Suiza
Engine___________ ____ ____________________ __ _________ __ ____ ________ ___ _____ ______ _ 309
NA-L5, Development__ __ ______________ ___________________________ ___ ___ _____________ 442
NA-L5, Double Venturi I nverted Type___ ____ _____ ____ _____ __ _______ _________ __ ___ _____ 314
NA-L5, Test of, on the Liberty 12 Engine_____ ____ __ ____________ _______ ______ __________ 158
Test of Back Suction and Air Bleed Type Mixture Controls in Flight___________________________ 368
Test Chamber and Method of Making Computations____ ____ ___________________ ______________ 405
Zenith:
Test of Canton Electrical Vaporizing Device_____ ____________________________________ ___ 125
US-52, Instructions for Installing 85-A Mixture Control_____ __________________ ___________ 175
US-52, Test of, with " Plain Tube" and Britton Type Discharge ozzles________________ ____ __ _ 370
Information
Castings: Circular No.
Heat Treatment of Sand Cast Duralumin_ _____ __________ _________ ___ ____ ____ _____________ __ 408
Metallography of Sand Cast Aluminum Alloys____ ___ __________ ___ _____ ___________ ___________ 449
Method of Making Aluminum Bronze Castings _____ __ __ _________ ___ ________ ___ - ------- - --- - - 376
Methods of Making Manganese Bronze Castings to meet Air Service Specifications No. 1102L ___ 275
Casualty Statistics and Causes, by Lieut. Col. L. H. Bauer and Maj. William Mac Lake__ ____ ________ 4
Casualty Statistics and Causes, First Transcontinental Reliability and Endurance Test_ ____ ____ ____ __ 2
Chamber, Carburetor Test Chamber and Method of Making Computations___ __ __ __________ ______ __ 405
Chamber Test, Standard Altitude Chamber Test for Engineers____ _______ __ ___ _________ ___ _______ _ 106
Characteristics, Limitations, and Employment of t he Air Service ____ _________ __ ____ _________ __ -- - -- 72
Chassis. S ee " Airplanes" for Each Particular Type.
Chief of Air Service, A. E. F., Final Report to the Commander in Chief, A. E . F _____ _______ _____ ___ 1 0
Chrome-Molybdenum, Physical Properties of Chrome-Molybdenum Steel Tubing_ _____ _____ ___ ______ 445
Circular Volume III, o. 273, Changes in Information Circular, Supplement__ __________ ____________ 273
Circulars, Announcement of Air Service Information Circulars (Aviat ion) with Aut hority________ _____ I
Climate, Effect on Standard Airplane Wing Coverings____ __ ___ ___ ________ _____________ _______ __ __ 384
COA- 1. S ee " Airplane."
Column, Comparison of Column Formulas____ __ _____________ ____ _____________ ______________ ____ 395
Columns, Tests on Combined Loading of Wooden Struts_ ___ ______ ____ ___ ________ __ __ ______ __ ____ 276
Column Charts, Nomographic Column Charts ___ ___ _____________________ ________ ________ ______ 304, 446
Combined Loading, The Investigation of Structural Members under Combined A.xial and Transverse
Loads ____ _____ _______________ ____ __ : __ _____ _________ ______ __ ____ ___ __ ____________ ___ ____ _ 493
Communications Officers :
Notes, Provisional_ _________________________ -------____________ ____ ____ __ ____ ________ ___ __ 78
Code Instruction _____ ___ _______ ____ ____ ________ - ~ - _____ _ ___________ _ _ _ ______ _ _____ _ _ ____ 79
Vacuum ~'ubes___ _ _ _ __ _ _ _ __ ___ _ _____ _ ___ _ _ __ __ _ ____ _ __ _ _ _ __ _ ___ _ _____________ _ __ ____ ___ _ 0
Compression, Effect of Reduced Engine Compression Pressure on Pre-Ignition with Mica Plugs__ _____ _ 20
Connections, Test of Variou Types of Gasoline Ho e Connections______ __ _____________ ____ _____ ___ 13
Consolidated Aircraft Co. S ee " Airplane."
Control Cable Guide Test- - -- - ------------ - ----- --- ----- - - - - --- ----- - -- - -- ------- - -- -- ---- --- 95, 110
Control Surface, Wind Ttmnel Test of Heavy Bomber_ ____ _______ ___ ___ __ ___ ___ _____ _______ _____ _ 531
Controllability, Angular Velocity and Dynamic Stability of an Airplane about the Axis of Pitch__ ______ 418
Controls:
Aileron Effectiveness____ __ ______ __________ _____________ ___ _______ ________ ___ _____ ____ _____ 454
Mixture. S ee "Mixture Controls."
Static Test of Martin Bomber Elevator Controls__ ____ ____ ____ ___ __ _________ __ __ __ ____ __ _____ 424
Cooling System:
DH-4, Test of Auxiliary Radiator____ ____ ___ ___ ______ ____________ _____ _________ __ __________ 241
DH-4B, Test with Hispano-Suiza 300 H.P. Engine_____ _________________ ______ ____ __________ 156
DH-4C, Test - - - -- - ---------- - ------------ - ---- -- -- - - - · - --- - - - -- -- ----- - - - ------- - - - ----- 271
Fokker D-VII, Test________________ __________ ___________________ __ __ ____ __ __ _______ __ ____ 233
JN-6, Test of Packard lA-744 Engine with Side Radiators __________ __ _____ ____ _______ ________ 294
LePere, Test of, Equipped with Side Radiators_______ ____ ____ __________ ____ ___ _____ __ ____ ___ _ 299
Loening M-8, Test ---- --------- - - - - - - - - - - - ------- - --- - ----------- -- - -- - ---- - - - - - -- ------- 206
Martin Bomber MB- 2, Test ___ ____ _____ __ ________ ____ ____ _____ ___ _______ ____ __ ___ ______ ___ 264
Ordnance Model D, Test__ _________ ____ ___________ ___ _____ _____ ____ ___ ______ _______ ____ ___ 144
Revisions in Cooling Systems for Air Cooled Cylinders_ _____ __ __ ________ ____ ______ _____ ___ ____ 124
Thomas Morse MB-3, Test_ ________ ___ ____ _____ _______ ______ ____ ____ __ ___ ______ ____ __ __ ___ 133
TW-1, Flight Test___ __ ____ __ ___ _____ ________ __ _______ ______ ___ ___ ____ ____ _____ __ ___ _____ 410
VCR-1 Airplane, Test of, with Annular Radiator____ __ ______ _____ _______ __ __ ______ _______ ____ 245
:X:B-1- A, Test _____ ____ __ ____ ____ ___ _____ _____ ________ __________ ___________ _____ ___ ____ __ 128
Copper, Physical and Metallographic Properties of Copper-Zinc-Aluminum Alloys Containing Small
Amounts of Magnesium____ ____ ______ ___ ___ _______ __ __ ___ ____ ________ ____ ___ ___ ___________ __ 393
Copper-Silicon-Aluminum Alloys with and without Manganese ___ ______ ____ ___ _____ _____ ----- - -- - - 385
Cords, General Descriptive Matter on Airplane Fabrics, Tapes, and Cords__ ____ ___________ ______ ___ 45
Corps Air Service-Field Manual (Provisional)_ _____ _____ _____ _________ _______ __ _____ _____ ____ ___ 74
Corps Observation. See " Airplane."
Corps Observation, Tactical History, Air Service, A. E. F ________ ____ ___ ________ _____ ____ _______ __ 75
Corrosion:
Interior Corrosion of Steel Struts, and Its Prevention______ _______ __ ____ ____ _______ ___ __ ______ 374
Investigation of Methods for Preventing the Corrosion of Metal Parts ___ ~ _ _______ _ __ _ __ _ __ __ ___ 211
Prevention of Metallic Aircraft Parts_____ _____ ____ ___ __________ __________ _____ ___ __________ 274
Z-D Process for Treatment of Light Alloys to Inhibit Corrosion___________ _____ ____ ____________ 448
10
Information
Circular No.
Coventry 37-millimeter Mark III Airplane Cannon, Ground Test__________________________________ 226
Covering Wing Gasoline Tanks in Martin Bomber_ ___ ______ _____ _____ ______ ____ _____ ______ __ ____ 105
Coverings:
Comparison of Protective Airplane Wing Coverings__ ____ ________ _____ ___________ __ __ ________ 250
Effect of Climate on Standard Airplane Wing Coverings_____ ________ ___ ___ ___ _____________ ____ 384
Instructions for the Application of Dope and Pigmented Protective Coverings __ _______ __________ 44
Life of Wing Coverings Using Clear Dope____________________________________ ___ ____ _____ ___ 103
Cox-Heinke!. S ee "Airplane."
Cox-Klemin. See·" Airplane."
Cracking of Alloy Steels During Dip Brazing______ ____ ____ ______ ________ ______ ____ ___ ___ ____ ____ 295
Crashes in the U. S. Army Air Service During the Calendar Years 1918- 1921, inclusive, and Results of
Physical Examinations for Flying D uring the Calendar Years 1920 and 1921_ __ _ __ ___ __ _ ____ ____ ___ 340
Crystal-On, Test of Sample of Crystal-On and Report on onfog Giving Treatment of Glass__________ 182
Curtiss. See "Airplane."
Curtiss. See "Engine." ·
Cut-Out, Delco Automatic Generator Cut-Out___ ___ ________________ ______________ _______________ 151
Cylinder:
ABC " Dragonfly" Cylinder, Test__ ____________ ____________________________________________ 265
Effects on Cylinder Performance of Variation of P osition and umber of Spark Plugs_ ___________ 401
Flow of Air Around a Rotating Cylinder ________________________ ______________ __ ____________ 510
Instructions for Reinforcing Liberty Cylinders_____ ________ __________________________________ 504
Lawrance-10-hour Endurance Test of All-Aluminum Cylinder_ ________ _____ __ ____ ___ ___________ 192
Liberty, Test of Standard Liberty Cylinder Mounted on a Universal Engine Crankcase___________ 199
Smith, Performance of the 5.5-inch by 6.5-inch.Smith Cylinder Unit _______ __________ _____ ______ 218
Test of Revisions in Cooling Systems for Air-Cooled Cylinders_____ ___ _________________________ 124
Construction, Adaptability of Hyde Welding Process to Steel Engine Cylinder Construction_______ 364
D-VII. See "Airplane."
D-12. S ee "Engine."
DB-1. See "Airplane."
DH. See "Airplane."
D
Davis, Test of Davis 3-inch Nonrecoil Cannon Mounted in Martin Bomber___ _____ ___ __ ______ ______ 342
Dayton-Wright. See "Airfoil."
Dayton-Wright. See "Airplane."
De Bothezat, Ba rograph, Type "A"------- __ --- --_-----_________________ _________ ___ _____ ____ __ 439
Decorations, Tentative List Awarded Army Air Service, A. E. F ____________ ___ _______ ___ ___ _______ 6
Delco :
Automatic Generator Cut-out, 50-hour Endurance Flight Test________________ ________ _________ 282
Comparative Merits of Dixie Magnetos and Delco Battery Ignition ystem_____________________ 17
Report on Foster Modification in Liberty Delco Switch Assembly_ ____________________ ___ ___ ___ 66
Design:
Airplane Performance and Design Charts_____ ___ ___ ____ _________________________________ ___ 183
Characteristics for Most Suitable Pursuit Airplane __ _____ _____ _______________________________ 436
Design of Cabane Struts for the PW-1 with R. A. F. 15 Tapered Wings__ ___ ___________________ 172
Design of Standard Lugs__________ ___________ _____ __________________ ______________________ 152
Design and Stress Analysis for PW- 2 Night Pursuit Type ________________________________ ·____ 150
Destructive Whirling Test of Aero Marine Propeller_ ___________________________________ __________ 137
Destructive Whirling Test of " Micarta" Propeller (Westinghouse) and Rubber-Covered Propellers with
Hard and Soft Rubber Leading Edges (Brunswick-Balke-Collender Co.)___________ __________ _____ 8
Detonation, Elimination of, by the Addition of X ylidine, Ortbo-Toluidine, Benzol and General Motors
Anti-Knock ro. L ________ ___ __ ________ _____ -- -- - ___ __ _ ____ __ ___ _ _____ ______ ___ __ _ _ _ _ _ 319
Development, Aircraft Development Since the Armistice ___ __ ______________ ______ -- --- -----_______ 402
Direction Finder , Semiportable Radio, Type SCR-)42______ ___________________________________ ___ ~38
Dixie Magneto. See "Magneto."
Dope:
Dopes and their Application __ _____ _______________ __ _______ __ __ __ - -- - --- ---___ _____ ___ ____ 544
General Descriptive Matter on Dopes, and Instructions for the Application of Dope and Pigmented
Protective Coverings___ ________________ ___ ______________________________________ _______ 44
Life of Wing Coverings Using Clear Dope_____________________________________ ___ ___________ 103
Wing Coverings, Protective _______ ___________ _____ ______________ ----------_____ __ ______ ___ 250
Doped Fuels, Effect of Doped Fuels on the F uel System ________________ ___ _____________________ 30 , 383
•
11
Infor mation
Douglas. See "Airplane." Circular No.
Drag, Airplane P erformance from the Standpoint of Modern Conception of Drag _____ -- _ - - - ---- -- --- 560
Duralumin:
Column, Crushing, and Tor ional Strength of Duralumin Tubing__ ____ ___ ____________ __________ 470
Economical Use of Duralumin as a Sub titute for SLeel in Compression__ __ _____ _____ _____ ______ 337
H eat Treatment of Sand Cast Duralumin_ __________________ __________ _________ _____________ 408
Duralumin Spar, Test of Aeromarine Dura lumin par_ _____________________ ____________ ____ ______ 524
Dynamic tability, About the A. .'.i :i of Pi tch----- -- --------------------------------------------- 41
E
Efficiency, Variation in Volumetric Efficiency with Valve Lift____ ___ __________ ______ __ ________ _____ 356
Elias. ee "Airplane."
Emergency Landing from Low Altitudes_________ _______________________________________ _______ 366
Enamels for Aircraft__ _____ __ ______ ___ ___________________ ___ ___ _______________________________ 562
Endurance, Notes on Flight Endurance_ ______________________ ___________ ____ ________________ ___ 210
Endurance Test of Liberty Engine_________ __ ____ _______________ _____ ___ ___________ ____________ 523
Enemy Aircraft Destroyed by United States Army Air Service____ __ _____ _______ __ ______ ___________ 7
Engines:
ABC--
Dragonfly, Cylinder Test oL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 265
Dragonfly, tandard Engine Report ______ _____ ___________________________ __ _____ ------_ 252
Wasp, Standard Engine Report _________________________ ______ ___ __________ -----_____ _ 167
Aeromarine, U- - D ., tandard Engine Report_ _________ _________ ________ _____ ___________ ____ 325
Air Intakes, Outside and Inside, Effect on Engine Operation____ _________ _______________ _______ 2 9
Almen Barrel, tandard Engine Test_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 205
" Bellows" (Sylphon) Fuel Pumps for Liberty "12" and \Vright Model " R " Engine_____ _________ 369
Benz, 200 H.P. Standard Engine Report_______ __________ ________________ __ ___ _____________ 41
B. M. W., Calibration of 6-Cylinder 1 5 H.P., B. M . W. German Aviation Engine______________ 138
Bijur Ignition End Starter, Test of----------------------------------------------- --- - ----- 357
C-6. See "Engine, Curtiss C-6,"
C-12. See "Engine, Curtiss C-12."
Calculations, tandard Method__________ ________________ ________ _____________ ___ __ ________ 421
Curtiss-
C-6, 50-hour Endurance Test_ ____________________________________________________ ----- 272
6, tanda.rd Engine Report,_------ -- ------------------- ---- --- ---------------------- 329
C-12 (Geared), tandard Engine Report__ ____ _________________________________ _____ ____ 330
D-12, Standard Engine Test, of High and Low Compression Engines___________________ ___ 550
OX-5, T e t ____________ ·_ 373
Curve for E timating Fuel Consumption on the Basis of Piston Di placement and R evolutions
per ~1u1ute__ ___________________________________________________ _ ____ ____ _____ _________ 375
Dragonfly . See "Engines, ABC Dragonfly."
E-6. See "Engines, Rau ie."
Effect of Reduced Engine Compression Pressure on Pre-Ignition with Micarta Plugs___ ____ ___ ____ 20
Fuel P umps. See " Pump ."
Gasoline Hose Connections ____________ __ _______ ______________ ·______________________ ____ __ 13
Geared, P erformance and D esign of Five geared Engines__ ___ _____________________ __ __________ 143
Hall-Scott L--6, 50-hour Endurance Run ____________________________________________ - -- -- __ - 149
Hall-Scott L--6, tandard Engine Report_______________________ ________________________ _____ 127
Hispano-Suiza-
See "Engine, Wright."
E, Variation in Performance with Degree or Throttle Opening _________ - - - - - - - - - - - - - - - - - - - - 354.
E and I , I gnition Timing I nstructions and hart___ _______ ___ ____ __ ___ _________ __________ 5
H, Test with Pistons which give 6.5: 1 Compres·ion Ratio_______ __ ____ _______ ___ ___ ____ ___ 333
H, 300 H.P.; 50-hour Endurance Test, with Cracked Crankcase______________ ______ _______ 279
IC (Cannon Model), Test oL____ ____ ____ ______ _________________________________ _____ __ 159
P erformance Tc t of Hispano-Suiza with Airplanes. See "Airplane ."
Report of Cannon Te t on Hispano-Suiza Engine _________________________ ___ --- -- - - -- - -- 32
tarting Torque on Liberty, Hispano-Suiza, and other Aviation Engines _____ ---- -- - -- - -- --- 126
300 H.P. and Liberty 12, Induction System Pressure_______ ______ __ ______________________ 223
300 H.P., 50-hour Endurance Test at High peeds _________________________ ________ _____ 170
300 H .P., Vibration Characteristics____ _______________ ___ _______________ _______________ 2
Torque Stand and Flight Test of Compression Relief D evice___________________ ____________ 131
With Steel Cylinders_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 64
12
Engines-Continued. Information
Ignition. S ee " Ignition." Circular No.
Isott a-Fraschini V-6, Test ___________ ____ _ --- - - _______________ ------ - -- - --- ------ -- ----- __ 177
L-6. S ee "Engine, Hall-Scott."
Lawrance, Standard 50-Hour Endurance Test __ _____________ ________________________________ 122
Lawrance, 10-Hour Endurance Test, Lawrance All-Aluminum Cylinder__ ______ ___ ____ _____ _____ 192
Liberty-
Air-Cooled, 50-hour Test ___________ _________________ ------- ________ ---- --- - -- ---- -- _ _ 551
Comparative Flight P erformance of, equipped with 5.42 and 6.5 Compression Ratios_______ __ 293
Comparative T est of Amdliary Starting D evices _____________________ __ _ - - - - - - -- - - - - - - - - _ 111
Determination of Carburetor Setting for the Liberty Engine, for Dirigible Use_______________ 311
50-hour Endurance Flight Test of Buzzer Starter_ ______________ ~__ _ _____________________ _ 302
Flight Test of Packard Fuelizer_ ____ :_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 134
Foster Modification on Liberty Delco Switch Assembly___________________________________ 66
F ree T hrottle Endurance Test of Liberty Engine_______ _________ __ ____ ___________________ 523
Fuel Consumption T est of DH-4B with Liberty Engine_________ ____ ______ ___ _____________ 346
Ignition System Instruction Board ___ ________ ____ _______ __________ _____________ - - _ - - - _ _ 48
Instructions for Reinforcing Liberty Cylinders_____________ ____ __ ___________ ____ _________ 504
Minimum Fuel Head to Operate Liberty 12 Engine on Propeller Load______________________ 422
Single Cylinder, T est of Monel Metal Valves_--------------------------- --------- -- ----- 9
Standard Cylinder Mounted on a Universal Engine Crankcase, Test of_ ___ __ ___ ___________ _ 199
Starting Torque ____ _________________________________________________ - ----- -------- --_ 126
12 and 300 H .P. Hispano-Suiza, Induction System Pressu re--- -- ------- -- - ~------------ --- 223
12 and Wright-Hispano 300 H . P., Operating on Automobile Gasoline_ _____________________ 227
p, Bijur Starter_____ ______________________________ ______ ___ _________ ___ _____ __ ______ 22
12, Buzzer Starter, 50-hour Endurance Flight Test_____ ______________ ____________________ 302
12, Comparative Mathematical Analysis of the Stresses in Cam-shaft Drive Gears of Liberty
"12" and Packard "2025" Engines_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 423
12, Comparative Merits of Dixie Magneto and D elco Ignition Systems_______________ _______ 17
12, P erformance, with a Compression Ratio of 6.5 t o !__ _______ ____ ___ ____ ___________ _____ 261
12, Preliminary T est of Bijur I gnition and Starting Motor________________________________ 22
Lion. See "Engine, Napier Lion."
Materials, a Metallurgical Report on Materials Used in Foreign Aeronautical Engines_ ___________ 222
Napier-Lion, Standard Engine Report_- --------------- ------------- ----- ------- - ----------- 157
OX-5. S ee "Engine, Curtiss OX-5."
Packard-l
A-744, Standard 50-hour Endurance Test____ _____ _____ _________ __ _____________________ 135
l A-1116, Performance with 6.5 to 1 Compression Ratio_ _____________________________ ____ _ 284
l A-1116, Standard 50-hour Endurance T est______ ______ ____ _______ ____ ____________ __ ____ 130
l A-2025, Test_ _____ ___________________ ______________________________________________ 269
"2025," Comparative Mathematical Analysis of the Stresses in Cam-shaft Drive Gears of the
Liberty " 12" and Packard "2025 "____ __ ___ __ _ _ __ __ __ __ _ _ ___ _ _ ___ _ __ ______ _ _ ____ __ _ _ _ 423
Parts and Accessories, Instructions for Storage___________ ___________ _____________ ___ _____ ____ 256
Power and Fuel Consumption, Method of Estimating_______ ____ ________ _____ ________ ___ ______ 317
Power Required to Drive Aeronautic Engine Magnetos and Generators_______ __________ ____ ___ _ 42
R-1, Comparison of Piston Side Tlll'ust in the Modified R-1, Radial Engine and the Single Cylinder
T est Engine------------------------- -- ---------------- - --------------- - -------------- - 525
Rausie E-6, 50-hour Endurance Test___ ___ ____ _________________ ___ _______ _________ _____ ____ 324
Rausie E-6, Standard Engine Report_ _______________________________________ ___ ____________ 191
Standard Altitude Chamber T est____________________ ___ ________________________________ ____ 106
Starting Torque----------------- --- ----- --- ------- - ---------------- ---- - --- -------------- 126
Storage, Comparison Tests of Storage Preparations_ __ ___________________ _____ ________________ 451
Stress Analysis, Stresses Occurring in the Cam-shaft Drive Gears of the Liberty" 12" and the P ackard
"2025" Engines________________________________________ _____________ __ ______ __________ 423
Transcontinental Reliability and Endurance Test____________________________________________ 2
U- 8-D, Standard Engine Report___________________________________________________________ 325
Universal Test Engine__________ __ ____ ___________________________ ___ ___________________ ___ 47
V-6. See "Engine, I sotta-Fraschini."
Variation in Volumetric Efficiency of an Engine with Valve Lift___ ____________________________ 356
W-1:
Car buretion, Heat R ejection, and Weight Data__________________________________________ 361
50-hour Endurance Run_ _____________________________________________________________ 326
Stress Analysis ___ ______ • __ • ___ ---·-----·- __ • ___ • __ • ________ ._________________ ___ __ __ 447
13
Information
Engines--Continued. Circular No.
Walker Radial, Standard Report___ __ __ ____________________________________________________ 251
Wasp ABC, Standard Engine Report_ ____________________________ ____ ______________________ 167
Wright:
See "Engine, Hispano-Suiza."
H-2, Performance Report_____________________________________________________________ 344
Wright-Hispano, Operating on Automobile Gasoline______________________________________ 227
Engine Heater, Test of Airplane Engine Heater_____ ___ ________________ ___ _____ ___ ______ _____ ____ 232
Engine Horsepower, Method for Computing Horsepower Available from Engine with Two-bladed Wood
Propeller-------- ----------- - - - ----------------------------------------------------------- - 505
Engine Horsepower, Variation with Altitude______________________________ ________ __ _________ ____ 92
Engineering Division, Air Service, I ndex to Technical Reports of, Jos. 1-1300, J anuary, 1918-June, 1920__ 93
England, Report of General Mitchell's Inspection Trip______ ______________ __ _______________________ 391
Exhaust, Wind Tunnel Test of the Effect of Rake Angle on Suction in Exhaust Stubs________________ 179
F
Fabric, General Descriptive Matter on Dopes_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 44
Fabric, General Descriptive Matter on Fabric, T apes, and Cords____ ________________ _______________ 45
Fatigue and Vibration of Metals _____ __________________________________________________________ 255
Films, Catalog _ _________________________________________________ ____ ______ ______________ __ 119,469
Finder, Direction, Type SCR- 142__ __ ___ _ __ ___ _______ _____ ___ ____ _ __ ___ _ _ _ ______ ___ __ ___ __ ___ __ 238
Fittings---- ----------- ------------------------------------ - --------------------------------- 387
Flare, Modified Mark L _ __ _ 392
Fog, Test of Sample of Crystal-On_____________________________________________________________ 182
Fokker. S ee " Airplane."
Forced Landings. See " Emergency Landings."
Foreign Aeronautical Engines, A Metallurgical Report________ ________ ____________________________ 222
Form, Official Airplane Report Form___ __________________________________________ __ _______ ___ __ 97
Formation Flying_______________________________________________________ __ ___________________ 73
Formula, Comparison of Column Formulas--------------------------------- --------------- -- ---- 395
Foster, Foster ModificatioD on Liberty-Delco Switch Assembly ________ __________ ------------- -- - -- 66
France, Report of General Mitchell's Inspection Trip___ _________ _____ ______________ ____ ___ _______ 391
Freezing Points, Tables Showing the Freezing P oints and Specific Gravity of Alcohol-Water Mixtures__ 178
Fuel:
Clogging of Fuel Strainers__ ___ _______ ____________ _______________ ______ __ ______ ________ ____ 542
Investigation of the Effect of Doped Fuel on Fuel System _____________ _____ ________________ 308, 383
Test to Determine Minimum Fuel Head to Operate Liberty " 12" Engine on Propeller Load_______ 422
Fuel Consumption:
Characteristics of the Stromberg T ype NA-D6 Carburetor on 300 H.P. Hispano-Suiza Engine____ 309
Curves for Estimating Fuel Consumption on the Basis of Piston Displacement and Revolutions per
Minute-------------- - ----------- -- -- - --- -- - ------------------------- --- -- --- -------- - 375
DH-4B with Liberty 12- A and Form " D " Supercharger_____________ _________ _______ ______ __ 398
Effect of Fuel Head at Carburetor on Brake Horse Power and Bra~e Specific Fuel Consumption___ _ 336
Method of Estimating P ower and Fuel Consumption at Various Altitudes__ ______ ________ ___ __ 317
Test of the DH-4-------------------------------------------------------------- - - - ----- 346, 461
Fuelizer, Test of Packard Fuelizer in Liberty "12 " _____________ ~ _ _ _ ___ _ __ _ _ _ _ _ _ _ _ _ _ ___ _ _ _ _ _ 134
Fuselage:
DH-4------- --- -- --------- ---------- - - ----- ---- -------------- --------- --- - ------------- 34
NBS-3, G. Elias, Torsional Test_______ ___ _________ __ _____ __________ ____ ____ __________ _____ 517
NBS-4 Curtiss, Torsional Test_ _________________________________ ___ ------ _________________ 513
XB-1-A, Static Test_ _______________ _____ _____ _______ ___ ____ ___ ___ __________ ___ ______ ____ 338
Wind Tunnel Test of Eight Models--- ------- ----- --- - - ------------ ------------ ------ ---- - - 477
GA-2A. See "Airplane."
GAX. See "Airplane."
G. Elias. See "Airplane."
Gallaudet. See "Airplane."
Gasoline:
G
Alcohol, Gasoline Mixtures_____________ ____ _______ __________ _____ ________________ _______ __ 450
Analysis of Some United States Gasolines_____ ______ ____ ____ __ ___________________________ ___ 465
Comparative Test of Homogenous Gasoline and Commercial Aeronautic Gasoline____ ____ ________ 35
Determination of Water in Gasoline_________ _______ ____ _______________ ______ _______________ 320
14
Information
Gasoline-Continued. Circular o.
Liberty " 12" and Wright-Hispano 300 B. P. Operation on Automobile Ga oline_________________ 227
Low T est Gasoline Specifications _____ ______________ ______ ____ _____________ ____ _ -- - - ___ - --- - 165
Specification and Methods of Te ting _____________ ________ ________ _________ __ __ - -- _ - --- --- - 46
Te t of H ose Connections ______ _____ _________________ ___ _____ ____________ ________ - _ - -- --- - 13
Use of Commercial Low-Test Automobile Ga oline in Aviation Engines_______ __________________ 216
Gear Fuel Pumps, Engine Driven, Type "C"-- -------- ----------- - -------~--------------- ------ 464
Geared Aviation Engines, Performance and Design __ _____ ________ ____ ____ ________________ ______ __ 143
Gears, Comparative Mathematical Analys is of Cam-shaft Drive Gars of the Liberty " 12" and the
Packard " 2025"-- ---------- - --------------- -- ----- --- ---- - ---------- ----------------- - -- - - 423
Generator , Airfan Type FA- 9 ___ __ ____ _______ ______ ________ ______ ________ ______ _____ -- -- _ - - - - - 62
Generator Cut-out, Delco Automatic 50-hour Endurance Test_ __________ ___ __ _______ __ ______ -- _ _ _ _ 2 2
Generator Cut-out, Delco Automatic Generator Cut-out __________ ___ _____ _______ ___ __ _ - _ - - - - - - - - - 151
Generators, P ower Required to Drive Magnetos and Generators __ __ ___ __ __ ____ ________ __ __________ 42
Generators, Radio Generator Airfan Head Resistance Measurement ___ ______ __ ____ _________________ 63
Germany, Repor t of General Mitchell's I nspection Trip ________ ______ _______ ______ __ ________ __ -- - - 391
Gliders--- -- -- -- ------ --- - - -- -- --- - --- ----- - --- - ------ ---- - ------ - -- ---- -- - ----- - --- - ------- 444
Goggles, Test of Sample of Crystal-On_____________ __ __________ ________ _____ _______________ ___ __ 1 2
Goggles, Vacuum Nonfro ting ______ ___ ___ _____ ___ _______________________________ ____________ -- 258
Goodyear, Test of Thick-walled Leak Proof Ta nks __ ________ ~ ________ ___ _ ____ ______ _ _____________ 136
Gottingen. See "Airfoil ."
Guide, Report of Control Cable Guide Running Te t _____ _____ _______ _______ ___ ___ ____ ____ ____ _ 95, 110
II
Ha ll-Scott. See "Engine."
Hanga r, P erformance of Tent Hangar Manufactured by Baker & Lockwood _______ __________ _____ ___ 187
Ha ngar, Per fo rmance of Test Hangar Manufactured by Missouri Tent & Awning Co_ __________ ______ 1 8
Har t . See " P ropeller."
Hartmann & Bra un, Laboratory Test on Electric Thermometer_ ___________________ _____ _____ ___ ___ 277
Head, E ffect of Fuel B ead at Carburetor on Brake Horsepower and Brake Specific Fuel Consumption_ _ 336
B eat Treating, Bath Composed of Sodium Chloride, Sodium Carbonate, and Sodium Cyanide_________ 363
Heat Treatment of Sand Cast D uralumin_ ____ _____ _____ __ ______ _______ ___ __ __ __________________ 408
Heater, Test of Engine Heater___ ___ ______ __ _____ _______ __ ___ _______ __ __ ___ _____ ___ __ ______ ____ 232
Hercules, Standard Test of Hercules park Plugs ____ ____ ___ ___ __ ____ ~- _ _________________________ 116
Hispano-Suiza. See "Engine."
History, Tactical H istory of Corp Observation, Air Service, A. E. F____ ______________ ____ ____ ____ __ 75
Holland, Rep ort of General Mitchell's Inspection T rip _______ _____ ___________ __________________ ___ 391
Horsep ower :
See "Engine."
Method of Computing Hor epower Available from Engine with Two-bladed Wood P ropeller_ ____ __ 505
Va riations of Horsepower with Altitude_____ _____ _______ _______________ ___________ __________ 92
Hose Connections, Test___ __ _____ ____ ____ _____ ___ ____ _______ _____________ _____ ________________ 13
H uff-Daland. S ee " Airplane."
Hyde, Adaptability of Hyde Welding Process to Steel Engine Cylinder Con truction____ ______ _____ __ 364
I
I gnition:
Bijur, Preliminary Test of Bijur Ignition End Starting Motor for Liberty" 12 "------------------ 22
Bijur, Test of Bijur I gnition End Starter for Airpl:lne Engines__ ______ _________________________ 357
Comparative Merits of Dixie Magneto and Delco Battery Ignition 'yst em _____________ ____ ___ __ 17
Delco Automatic Generator Cut-out_ ___________ ____ ___ ___ __ ____ _____________ ________ _______ 151
Device, Test of Alsop All-Spark Ignition Device _____ ___ _____________ __ _______ __ ____ ___ ___ ___ 18
Standa rd Test of Hercules Spark P lugs __ -- - ------- - ------- - ---------- -- -------------------- 116
Te t of Kellogg 600 Watt Reverse-Current RelaY-------------------------------------------- 1 9
Index:
Air Ser vice I nformation Circulars Nos. 1- 565, Inc lusive_______________________________________ 565
Air Service Orders and Circulars, Janua ry 1, 1919, to December 31, 1923. 'uperseded by Ci rcular
5-1, 0 . C. A. S., May 16, 1924 __ _____ ______ ______ ________ _____ ___________ ___ __ __ ________ _ 459
T echnical Reports of Engineering Division, Air Service, o . 1- 1300 J an uary, 1918- June, 1920____ 93
Indicator , R ate-of-Climb, Description, and Theory______ ___ _____ __ __ __________________________ __ 31
I n flection, I nvestigation of the Movements of the Points of I nflection on Beams under Various Com-binations
of Loads ________ ______ __________ _____________________________ __ ______ ________ __ __ 471
! nfor mation Circular, Volume I II, No. 2731 Changes in ------------------------------------~ -- - --- 273
15
lniormatlon'
Circular No
Injector, Flight Test of Anti-Knock Injector_____________________________________________________ 37Z
Insignia, Comparative Merits of Various Insignia________________________________________________ 98
Inspection, Report of General Mitchell's Inspection Trip__________________________________________ 391
Instruments, Performance of Airspeed Tubes Exposed to Rain Drops and Freezing Rain______________ 549
Instruments, Testing of Airplane Tachometers___________________________________________________ 61
Intake, Air, Outside and Inside, Comparative Effect on Engine Operation ______ ___ _____ ·_____________ 289
Intake Bell, Experiments on the Design of, for a Wind Tunnel____________________________________ 217
Interphone, SCR-57, Remodeled_____________________________________________________________ 129, 204
Interphone, Spalding Voice Tube Interphone_ _ ___ _ _ ________ ___ ___ __ _ _ _ _ ___ _ _____ ___ _____ ___ 108
Isotta-Fraschini. See "Engine."
Italy, Report of General Mitchell's Inspection TriP------------------------ ------------------ ---- 391
JL. See "Airplane, Junker."
JN-6H. See "Airplane."
Junker. See "Airplane."
J
K
Kellogg, Test of Kellogg 600-Watt Reverse Current Relay________________________________________ 189
Kerber-Boulton, Static Test of Experimental Spar________________________________________________ 557
L
Laboratory, Medical, Report of the Medical Research Laboratory and School for Flight Surgeons for the
Calendar Year 1920-------------------------------------------------- -- --------------- --- -- 231
Laddon. See "Airplane."
Landing, Emergency Landings from Low Altitudes _______________________________ --- -- ---------_ 366
Landing Facilities and Airways________________________________________________________________ 404
Landing Fields: .
First Transcontinental Reliability and Endurance Test_________ __________ _____________ _______ 2
Meteorology and Aeronautics--------------------------------------------------------~----- 77
Rules---------------------------------------------------------------- ----- -------------- 81,84
Landing Lights, Carbic, Night________________________________________________________________ 253
Lantern Slides, Catalogue------ -- --------------------- - --------- ------ ---------------------- 119,469
Lawrance. See "Engine."
Le Pere. See "Airplane."
Legal Questions Affecting Federal Control of the Air----------------------------------------- - - - -- 181
Liaison, Air Service Liaison Regulations __________________________________________ - _ - _ - - - - - ___ - - 89, 90
Liberty Engine. See "Engine."
Liberty Storage Battery Endurance Test_ _______________________________________________ ---- - -- 301
Lights, Carbic, Test of Night Landing Lights------- -------------'-------- --- --------- --------- -- - 253
Load, Structural Members under Combined Axial and Transverse Loads __________________ - _ - _ - _ - - - 493
Load, Study of S. T. as Formula for Load Factors----------------------------------------------- 498
Load Distribution among the Spars in Multi-Spar Construction of Airplane Wings_______ ____________ 394
Load Factors, Effect of Variation in Load Factors on Structural Weight of Wings____________________ 318
Loading, Best Wing Loading for Single-Seater Pursuit Airplane ______________________ ·__ ____________ 315
Loading, Test on Combined Loading of Wooden Struts____________ ____________________ ___________ 276
Loening. See "Airplane."
Lubricating Oils, Specifications and Methods of Testing_ __ ________________ ________ _______________ 118
Lucas, Test of Lucas Electric Engine Starter____________________________________________________ 168
Lugs, Design of Standard Lugs-------------------------------- ------- ----------- -------------- 152
MB-2. See "Airplanes."
MB-3. See "Airplanes."
MB-6. See "Airplanes."
Machine Gun:
M
Marlin, Test of Model 1916, after Changes Were Made in Top Lock Container to Accommodate
Single Shot Mechanism ___________________________ _____________ ____ _____ _________ ------- 59
Remedies for Machine Gun Malfunction________________ ____________________________________ 497
Test of Synchronizer Type C-8_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___ ___ __ _ 396
70792-27--3
16
Inrormatlon
Circular No.
Magazine, Aeronautical Book and Magazine List _______ ----------------------___________________ 21
Magneto, Dixie, Comparative Merits of Dixie Magneto and Delco Battery Ignition System___________ 17
Magneto, Power Required to Drive Magnetos and Generators_____________________________________ 42
Mail, DH-4M2. S ee "Airplane. 11
Manganese Bronze Castings, Methods of Making __ _ ------- _________ --------------------------___ 275
Manganese Bronze, Physical Properties_____ ________________________________________________ __ __ 371
Manual, Air Service ManuaL__ _ _ ___ _ __ _ _ _ _ _ _ _ _ 84
Mii.nual, Corps Air Service, Field ManuaL--------------- - --------------------------- - ---------- 74
Mapping, Use of Aerial Photographs in Topographic Mapping___________ __________________________ 18'1
Marlin-Test of Model 1916 after Changes Were Made in Top Lock Container to Accommodate Single
Shot Mechanism--------------- - ----------------------------- - ----------------------------- 59
Martin. See "Airplane."
Measurement of Distances ______________________________________ _________ ______________ - - _ - _ - - 18
Medical:
Air Medical Service------------------------------------------- -- ---- - ----- 3, 99, 237, 359, 403, 462
Air Medical Service and Flight Surgeon____________________ ______ ____ _____________ __________ 4
Extracts from Air Service Information Circular, Air Medical Service______ __________ ___ _________ 563
Medical Research Laboratory and School for Flight Surgeons for the Calendar Year 1920, Report______ 231
Messenger. See "Airplane. 11
•
Metallic Aircraft Parts, Corrosion Prevention_______________________________________ _____________ 274
Metallography of Sand Cast Aluminum Alloys ______________________________________ _________ -- - - 449
Metallurgical Report on Materials Used in Foreign Aeronautical Engines ______________ ____ __ _______ 222
Metals, Fatigue and Vibration _______________________________________ _____ - - - _ _ _ _ _ 255
Meteorology and Aeronautics__________________ _______________________________ ___ __ ____________ 77
Meteorology, Transcontinental Reliability Contest ____________________ _____ ___________________ ___ 2
Method of Least Work Applied to Redup.dant Structures___________ ________________ ___ ___________ 495
Methods of Observation with Fifth Corps First American Army on the Fronts_________ ______________ 115
Mica Plugs. S ee " Spark Plugs. "
Micarta, Destructive Whirling Test of " Micarta" Propeller ___ ---- - ---- _________________ ---------- 8
Micarta Liberty Propeller, Destructive Whirling Test ___________________ __ ____ _____ ______ _____ ____ 12
Miller Rubber Co., Test of Five Thick-Walled Leakproof Tanks___________ _____ ______ ___ __________ 114
Missouri Tent & Awning Co., Performance of Hangar (Tent) _____ _______ ____ __ ___ __ ___ __ __________ 188
Mitchell, Gen. W. L., Report of Inspection Trip to France, Italy, Germany, Holland , and England,
Made during the Winter of 1921-1922 (Technical Supplement) _________ __ -------__ __ ____________ 391
Mixture Control:
Instructions for Installing Mixture Control (85-A) in Zenith Carburetors ________ ______ _________ 175
Instructions to Pilots _________________ ___ ~ _ ___ __ _ ________ _ ____ __ __ _ ________ _ _ ___ __________ 257
Test of Back Suction and Air-Bleed Type Mixt ure Controls in Flight___ ___________ ___ ______ ____ 368
Morane-Saulnier. S ee "Airplane."
Mone! Metal Valves, Test in Liberty Single-Cylinder Engine ____ ________ ___________ __ ___ _____ _____ 9
Mosler. S ee "Spark Plugs."
Motion Picture Catalogue _________________ __________ __ ___________ ___ _________ __ ___ _________ 119,469
Mount, Ground Test of Cannon Turret Mount__ _____________________ ________ ___ __ ___ _____ __ __ __ 112
Mount, Type "A," Report of Test of Cannon Ring Mount_ __ ---------- ____ --- -- ----_______ _______ 283
NA-D6. See " Stromberg."
NA-L5. S ee "Stromberg."
NBS-1. See" Airplane."
Napier. See " Engine. "
Navigation:
N
Air Service ManuaL _ _ _ _ _ _ _ _ 84
First Transcontinental Reliability and Endurance Test_ ____ __ __ · ____ _____________ _____ __ - - - - - - 2
Instructions, ProvisionaL ___ _____ __ _____ ____ ___ ______ ____ ___________ ___ ___________ ____ . _ 82
Nelson Gun Control, Marlin, Test of Model 1916, after Changes were made in Top Lock Container to
Accommodate Single Shot Mechanism______ ___ _____ _____ __ __ ____ _____ ___ __ _____________ ___ ___ 59
Night Landing Lights, Carbic_ _ _ _ _ __ __ _ _ _ _ _ _____ _ ____ _ _ _ ____ _ _ __ ___ ___ __ _ 253
N omographic Column Charts __ ________ __ _________ ___________ ___ ___________________ ________ __ 304, 446
17
0
Information
Observation: Circular No.
Aerial Observation for All Arms____________________________________________________________ 85
Aerial Observation for Target Practice at Fort Monroe, Va., during the Season Ending August 26,
1920 -----------------~ --------------------------------- - ------------------------------ 142
Methods Practiced with Fifth Corps First American Army on the Front_____ _________ __________ 115
Observation, Selection, and Assignment_____________________________________________________ 120
Tactical History of Corps Observation, Air Service, A. E. F ___________________________________ · 75
Odier Portable Engine Starter, Test________ _______________________ _______ ____ ___ ___ _____ ___ ____ 190
Officers, Reserve Officers, April 15, 1920_ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ __ _ _ ___ __ _ _ __ ___ _ _ __ _ __ ___ _ __ __ __ _ _ _ 69
Oils, Specifications and Method for Testing Lubricating Oils_____ ___________ __ ______ _______________ 118
Operations, Notes on Recent Operations_____________________________________________________ ___ 76
Operations Officers, Regulations for Corps Air Service Operations Officers_____________ __ ____________ 86
Ordnance "D." See" Airplane."
Ordnance "D," Cooling Test_ ________________ _______ __________ _____ ___________________________ 144
Orenco. See "Airplane."
Ortho-Toluidine, Elimination of Detonation by the Addition of Xylidine, Ortho-Toluidine, Benzol, and
General Motors Anti-Knock No. l_ _ _ _ __ _ _ _ __ _ _ _ _ __ _ __ _ _ _ _ _ _ __ _ _ __ __ _ _ _ _ __ __ _ __ _ _ _ _ __ _ _ _ _ _ __ _ 319
Oxygen, Pract ical Field Service Use of Oxygen___________ __ ___________ ______________ _____________ 543
Oxygen Gas Apparatus, Description and Adjustment of Prouty Oxygen Gas Apparatus _____ ____ ______ 174
P A-1. See "Airplane."
PG. See "Airplane."
PT-1. See "Airplane."
PW. See" Airplane."
Packard. See "Engine."
p
P arachute, Test of Model 300-D-1 Parachute________________________________ ___ ________________ 15
Performance:
Airplane P erformance and Design Chart_ ______________________________________ _____ ______ __ 183
Airplane Performance from the Standpoint of Modern Conception of Drag_ _____________________ 560
Effects on Cylinder Performance of Variation of Position and Number of Spark Plugs ______ ._____ _ 401
Empirical-Theoretical Method of Comparative Prediction of Airplane P erformance________ ___ ____ 68
T heoretical Method of Analyzing and Predicting Airplane P erformance________ ___________ ____ __ . 553
Photographs, Aerial, Use of, in Topographic Mapping___________ ___________ ____ ______ ____________ 184
Photography, Catalogue of Motion-Picture F ilms and Lantern Slides _____________________ ______ __ 119, 469
Photography, ManuaL _ _ ___ _ _ _ _ _ __ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ __ _ _ 96
P hysical Examinations. See "Crashes."
Piston, Compai:ison of Piston Side Thrusts in the Modified R-1 400 H. P . Radial Engine and the Single-
Cy liner Test Engine_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 525
Plating, Cadmium Plating by Means of Udylite Process___________ _______________________________ 545
Plywood:
Design of Plywood Webs for Box Beams________ _________ ______________ _____ ________________ 516
Truss Ribs------------------------------------------------------- ----- ----- - ------------ 268
Use of Balsa Wood in Plywood ______________________________ __________________ _____ _ ~____ _ 4 73
Web Spars-------------------------------------------------------------------- -------- - - 313
1'omilio. See "Airplane."
Power, Method of Estimating Power and Fuel Consumption at Various Altitudes- -- ------~-- ---- - --- 317
P ower, Required to·Drive Aeronautic Engine Magnetos and Generators___ ________________ _______ __ 42
Preignition, Effect of Reduced Engine Compression Pressure on Preignit ion with Mica Plugs ___ _______ 20
Projector, P yrotechnic P rojector and Ammunition Test_________________________________ ____ ______ 389
Propeller :
Aeromarine, Destructive Whirling T est_________________________________________________ __ __ 137
Destructive Whirling Test of "Micarta" Propeller (Westinghouse) and Rubber-Covered Propellers
with Hard and Soft Rubber Leading Edges (Brunswick-Balke-Collender Co.) _________________ 8
Hart, 1920 Model, Manual and Parts List _____ ---------------------------- ---------- - ------ 239
Hart, Whirling Test of Adjustable Propeller_ __________________ ______________________________ 11
Metal Tipping of Aircraft Propellers______________________ ___ ___________ ___________________ 246
Method Used by the Engineering Division for Computing the H orsepower Available from an Engine
with a Two-Bladed Propeller_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 505
Micarta, Destructive Whirling Test _______________________ __ _________________ ~- -------_____ 12
Shift of the Angle of No-Lift on Propeller Aerofoils _____ ----------- ---- ---------------------- 147
Test to Determine Minimum Fuel Head to Operate Liberty " 12 " Engine on Propeller Load______ 422
X-14849, Investigation of Steel Propeller___________________________________________________ 145
•
18
Information
Circular No
Properties of Wood at 10 Per Cent Moisture____________ __________ ___________________ ___________ 53
Prouty Oxygen Gas Apparatus----------------------------------------------- ----------------- 174
Pump:
Bellows (Sylphon) Fuel Pump for Liberty " 12" and Wright "H" Engines _________ _________ __ 369, 458
Engine Driven Gear Fuel Pumps, Type "C"---------·- - ----- - ----------- - ----- ----- -------- 464
Sylphon Fuel PumP-- ----------------- ---- - -- -- --- - ---- ------ ------- - - - - ------------- - --- 281
Pursuit :
Airplanes, Determination of the Best Wing Loading____________ __ ______ ___ ______ _____________ 315
Biplanes, Single Bay, the Economic Limit in Aspect Ratio ___ ___________ -- --------__ ___ _______ 260
Comparative Study of Type I Airplanes with Various Power Plants__ ______ ___ _________ ________ 307
Design Characteristics for Most Suitable Pursuit Airplanes______________________ _____________ 436
Pilots, otes for Pursuit Pilots_ ______ ____ ______ ___________________ ___ _____________________ 87
Regulations, Pursuit and Combat Flying Training Regulations, ProvisionaL _ _ _ 83
Pyrotechnic, Projector, and Ammunition Test_ __________________________________________________ 389
Pyroxylin, Finishes for Aircraft________________________________________________________________ 561
R
Radial Engine, Comparison of Piston Side Thrusts in the Modified R- 1 400 H. P. Radial Engine and
the Single-Cylinder Test Engine_________________________ ___ ___________________ ________ ______ 525
Radio:
Airfan Type FA- 9--- --- -- -- - - --------------- --- --------------------------- ------- ------- 62
Auxiliary Control for Set Type SCR-68 ___ --------------------- - ------------- - - --- --------- 94
Generator Airfan Head-Resistance Measurement ______ _____________ -~-_________ ______________ 63
Notes for Communications Officers _______ ___ ___________________________________ ___ _ , ____ 78, 79, 80
SCR-59, Remodeled____ ___ _________ ________________________ __ ______ _____________ _________ 323
SCR-142, Direction Finder__ __________ ___ ________________________ _________ __ _____ ___ ______ 238
Short Wave Radio Telephone Set_____ ___ _________________________ ___ __ _____ _____ ______ ___ _ 30
Treatise for Radio Mechanics__ _______ __ __ _______________ __________ ______________________ _ 229
Transcontinental Reliability Test__________ __ __ ________ ___ _____________ ____ ________________ 2
Radiator:
DH-4, Tests of, to Determine Best Location for Speed_____________ _______ __ __________ _______ 528
Fokker C0-4, Performance Test of, with Side Radiators_______ ______ ___ ________ ______________ 456
Fokker C0-4, Test oL _ _ _ 457
Side Type, Test of Curtiss JN- 6 with Packard lA-744 Engine_______ ____ _______ _____ __________ 294
Side Type, Test of LePere _ _ _ _ 299
R. A. F. 19 Airfoil, Wind Tunnel Test----------------------------------- --- ----- - -- -- ---------- 248
Rake Angle, Wind Tunnel Test of the Effect of Rake Angle on Suction in Exhaust Stub -- --- -------- 179
Rate-of-Climb Indicators, Description and Theory_________________ ____ ___________ _____________ __ 31
Rausie. See "Engine."
Receiving Set, Type SCR- 59 Remodeled_________________ ___ ____ _____ _____ _______ ___________ ____ 323
Redundant Structures, Application of the Method of Least Work_ _________________________________ 495
Regulations:
Corps Air Service Operations Officers__________ _____ ________________________________________ 86
Flying Training Regulations ( Provis ional)~___________________________ __ _______ __________ __ _ 81
Pursuit and Combat Flying Training Regulations____________________________ ______ _________ _ 8~
Relay, Test of Kellogg 600-Watt Reverse Current Relay___________________________ _______ __ ___ ___ 189
Report:
Final Report of Chief of Air Service A. E. F. to the Commander in Chief A. E. F _ 180
First Transcontinental Reliability and Endurance Test__ ___ ____ _______________________ ___ ____ , 2
General Mitchell 's I nspection Trip to France, Italy, Germany, Holland, and England _________ ___ 391
Official Airplane Report Form_________ ____ ______________________ ___________ _________ ______ 97
Reserve Officers, List of, April 15, 1920 _ ------------- --------------- - --------- ----------------- 69
Ribs:
Design of Large Trussed Ribs___________________________ _________________ _______ ________ __ 312
Experimental 15-inch Metal Spars and 11-foot Chord Metal Wing Ribs, Tests on__ ______ __ ______ 556
Experimental Reinforced Plywood Truss Ribs _____________ ______________ ____ ______________ 212, 268
Strength of Wing Ribs___ _____________________________ ___ _____________ _________ ___________ 443
Roland. See "Airplane."
Rubber, Storage and Preservation of Rubber Goods, Tires, and Tubes______ ___ ___ ______________ ____ 48
•
S-6. See "Airplanes."
SCR. See " Radio."
19
s
SE-5. See "Airplane." Information
, SL-6. See "Airplanes." Circular No.
Sediment Deposits in Carburetors______ ___ ___________ ____ _______________ _______________ _______ _ 390
Selection, Observation, and Assignment_ ____________ ___ _________________________________ ______ __ 120
Shackle, Modified Weed Shackle for Bomb Racks____ _______ ______________ __________ _____________ 305
Shock Absorber Cord, Tests on Shock Absorber Cord_ _______ _________________ ________ ___________ _ 121
Shock Absorbing Wheels, J . V. Martin Static Test__________________ __________ __ __________ _______ 254
Silicon, Copper-Silicon-Aluminum Alloys with and without Manganese ___________ ~ _________________ 385
Ski, SE-5 Static Test __ __ _ ------- - ----_ ______________ ______ ______ ______________________ ______ 322
Slides, Catalogue of Lantern Slides___________________ ______ ___ _____ __ ________________________ 119, 469
Smith Cylinder Unit, Performance Test _______________ ______ __ _______ ________________ _____ ___ ___ 218
Solder for Aluminum_______ ______ ____________________________________ ______________ ___ ___ ___ _ 298
Solder, Investigation of Silver Solder_ __ _____ _ -------- ______ __ ____ -- -- --- -- ----- - ---- - - - - _____ __ 26
Spad. See "Airplane."
Spar:
Design of Plywood Webs for Box Beams-------------- - - - ------------------------ - ------ - --- 516
Effect of Eccentricities on Stresses in Airplane Spars__________________________ ________________ 438
Experimental 15-inch Metal Spars and 11-foot Chord Metal Wing Ribs, Tests on________________ 556
Load Distribution among the Spars in Multi-Spar Construction of Airplane Wings_______ ________ 394
Reinforced Ply-Wood Web Spars_ ____ _______________ _____________________________ _______ __ 313
Static Test of Aeromarine Duralumin Spar_________________ ___________________________ ____ __ 524
Static Test of Engineering Division Experimental Steel Spar_____ ______________________________ 519
Static Test of Kerber-Boulton Experimental Spar_______________ _____________________________ 557
Spark Plug:
AC, Standard Test__ ___ ______ ___________________________ _________________________________ 249
Brewster-Goldsmith Model 1-A, 100-hour Endurance Test ___ - ------------- ____ - ----------- - -- 209
Effects on Cylinder Performance of Variation of Position and Number of Spark Plugs___ ________ _ 401
Effects of Reduced-Engine Compression Pressure on Pre-Ignition with Micarta Spark Plugs_______ 20
Method and Equipment for Cleaning and Testing __________ ___ --- - __ ----- __ _ --------_________ 558
Mosler M-1, Standard Test (and Supplement)_ ______________________ ____ ___________ _________ 273
Standard Test of Hercules Spark Plugs______ ___ ____ _________________________________________ 116
Speaking Tube-------- -- ---------- - ------------ --------- - --- -------- - --- -------- --- --- - ------ 67
Specification, Method and Specification for Testing Lubricating OiL__ _ _ _ _ _ _ _ _ _ _ _ _ 118
Specification, Low Test Gasoline_______________ ____ ___ _____ ____ ___________ _____________________ 165
Speed, Bamburg Speed Measuring Station__________ ____ ____ ___ ____________ _____ ___ _______ ____ ___ 397
Spoke Lacing, Effect of Spoke Lacing on the Physical Properties of Airplane Wire Wheels__ ________ ___ 537
Springer No. 3. See" Airfoil." .
Spruce, Crushing Strength at Varying Angles of Grain________ __________ __________________________ 259
S. T . Ae Formula, Study of, for Load Factors-- -- ------- - ------------- ----- - - ----------·-- - ------ 498
Stability, Longitudinal Stability of Airplanes__________ ___ _______ __ _______ ________ _______________ 548
Stability, Study of Controllability, Angular Velocity, and Dynamic Stability of an Airplane about the
Axis of Pitch __________ _______________ ___________ ----- - - ---------- ___ ___ ______ __ --- - --_____ 418
Standard Altitude Chamber Test for Engines------- - -------- --- ----------- ----- - --- ------- --- --- 106
Starter:
Auxiliary, Comparative Test ____ ---------- __ _______ ----------_ _____ ___ _______ _____________ 111
Bijur, Preliminary Test __ ______________ ; ______ ____ ____________________ _____ ------ - - ----___ 22
Bijur, Test of Bijur Ignition End Starter_________ ____________ _________________ ____ ______ ____ 357
Lucas, Test------ ---- --- ----------- ----- - --- --- ----------- - ----- --------------- ----- - --- 168
Odier, Test__ 190
Starting Device, 50-hour Endurance Flight Test (Buzzer Starter)_ _____________ ____________________ 302
Starting Switches, Tests of Magnetically Operated Starting Switches_____ ______ ____________ ________ 214
Static Testing, Present Procedure ___ ________________ __________________ __ -- - - - - ---______________ 10
Steel:
Alloy, Cause of Cracking during Dip Brazing ____ __ ____ _ c___ ___________________________ ___ __ 295
Ballistic Properties of a Urano-Silico-r ickel SteeL _ ___ 186
Physical Properties of Chrome-Molybdenum Steel Tubing__________ ___________ _____ ___ _______ 445
Steel Propeller, :X:- 14849__________ ________________ _____ ______ ____ _____ _____ ___ ___ __________ ___ 145
Steel Spar, Static Test of the Engineering Division Experimental Steel Spar _ _._ ____ _______ ___ _______ 519
Steel Struts, Interior Corro ion and lt!l Pn; vention- -- -- -------------------- - - - - - --------- - ------ - 374
20
Information
Steel Tubing: Circular No.
Effect of the Ratio of Diameter to Gage Thickness upon the Torsional Strength ________________ _
Steel Tubing and Wing Beams Taken from the Fokker D-VII, Test on ___________ ____________ _
• Thin-Walled Seamless, Round and Streamline _____________________________________________ _ Storage:
Airplanes, Engines, Their Parts and Accessories __ ----_ - _ - - -- --- - - -- - -- - --- - --- --- --- --- - --- --
Liberty Storage Battery Endurance Test ________________ ___ _______ ____ ___ _______ __________ _
Preparations for Aviation Engine Storage ______ ____ ________________________________________ _
Storage and Preservation of Rubber Goods, Tires, and Tubes ______ ___ __ __________ ____ ________ _
Strainer, Clogging of Fuel Strainers_ - - ------ ___ --- __ ---- ----- - - - -- - --- -- - --------- -- -- ---- -----
Strength, Column, Crushing, and Torsional Strength of Duralumin Tubing _ ------- ---- __________ ---
Strength, Crushing Strength of Spruce at Varying Angles of Grain ______________________ __________ _
Stress Analysis:
"Aloutette" Airplane ____ - ------ -- __________ __________________ ______ _____________________ _
Application of the Method of Least Work to Redundant Structures _______________ ____________ _
Charts for the Solution of Stresses in Airplane Wing Beams ____________________________ ______ _
Deflection of Beams of Non uniform Section ______ ----- ______________________________________ _
Design of Plywood Webs for Box Beams __________________________________________ ________ _
Distribution of Load among the Spars in Multi-Spar Construction of Airplane Wings __________ __ _
Economic Limit in Aspect Ratio of Single-Bay Pursuit Biplanes _____________________ _________ _
Effect of Routing on Modulus of Rupture and Other Strength Properties ________________ _______ _
JMLo-d6e l- -W---1-- E--n-g-in-e- _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-__-_-_--_-_-_-__--_-_-_-__--_-_-_-_-_-_-_-__-_-_-_-_-_-_--_-_-_-_-_- -_
Movements of the Points of I nflection on Beams under Various Combinations of Loads ____ ______ _
Structural Members under Combined Axial and Transverse Loads ___ __ ___ ____ _____ ___ ______ __ _
Wing Cellule of the Multi-Spar Type of Wing Construction with Special Reference to the Loading
Conditions of the Standard Static Test ___________ _______________________________ ________ _
Wings, Stress Analysis and Design of, for PW-2 Night P ursuit __________ __ _____________ ______ _
Stresses, Effect of Eccentricities in Airplane Spars _______ _______________________________________ _
Stromberg Carburet or:
NA-D6, Test to Improve Fuel Consumption on the 300 H . P . Hispano-Suiza Engine ____________ _
NA-L5, Development of Stromberg, I nverted Type ModeL _______ ___ _____ _______ ___________ _ NA-L5, I nstructions for Stromberg NA-L5 Double Venturi Inverted Type---------------------
NA-L5, Test of, on the Liberty " 12" Engine ______________ __ __ _________ ____ ________________ _
Structural Members Under Combined Axial and Transverse Loads ___________________ __ ___________ _
Structural Weight of Airplanes __ _____________________________________________________________ _
Structures, Application of the Method of Least Work to Redundant Structures _______________ _____ _ Struts:
Comparison of Column Formulas __ _______ __ _______ ________ _______ --------- ___ __ __________ _
K Bar, Physical Tests on Struts from JV-Martin Airplane ___________________________ ______ __ Reserve Bending Strength of Struts __________________ _____________ ________ ___ __ ____ _____ __ Structural Design of Cabane Struts for the PW-1 with R. A. F. 15 Tapered Wings ______________ _
Wooden, Test on Combined Loading ____ _________ ______ ___________________________________ _
Supercharger, DH-4B, Fuel Consumption during Climb ______ ___________ ________________________ _
Supercharger, Test of Supercharger Air Coolers ____ __ __ ___ ________________________________ ______ _
Supercharging, An Analysis of the Effect of Supercharging _ _____ _______________________________ __ Sweep Back, Effect of Sweep Back and Sweep Forward on an Airfoil __ ____ ______________ ______ ___ _ Switch, Liberty Delco, Report on Foster Modification_------- - _________________________ . _______ __ Switches, Starting, Operating Tests ________ ______ ________ _____________________________________ _
Sylphon Fuel Pump for Liberty " 12" and Wright Model "H" Engines __ __________________________ _
Synchronizer C-8, Test of Machine Gun Synchronizer __________ ___________ _______________ _______ _
Synchronizer, Electrical Gun Synchronizer Test ___ _______ __ ____________________________________ _
T-2. See "Airplane."
TA. See " Airplane."
TW. S ee "Airplane."
Tachometer:
T
263
104
247
256
301
451
48
542
470
259
520
495
555
213
516
394
260
240
332
447
471
493
52
150
438
309
442
314
158
493
39
495
395
101
353
172
276
398
399
195
547
6()
214
281
39(}
194
Airplane- -- ------- --------------- - ----- - ----------------- ------------ ------- --------- - -- · - 60
Testing----------- - ------------ -------- ---- ---- --------- ------------------------------- - 61
Test of Weston Model 44 Electrical Tachometer______ __ __ __ _____________________________ __ __ 316
Tactical History of Corps Observation , Air Service, A. E. F_______________________________________ 75
?-'actic~l Manual of Aerial Bom.bardment_ __ _____ __ __ __________________ ____ _. ________ ~--,------- -- 140
'
21
Information
Circular No.
Tactics, Aerial, Observation, Bombardment, Pursuit-Combat____ _____ ____ ___ _____ ________ __ _____ 88
Tactics, Air_________ ____ __ _______ __ _______ _____ _____________ _______ _________________________ 73
Tail Plane, Method for Determining the Angular Setting___ ___________________________ ____________ 102
Tail Skid, Impact Test of J -4 Tail Skid and Landing Chassis____________________________________ 409
Tail Surface, Static Test on DH-4 (Dayton-Wright)__ __ __ ____ ___ _____________ __ __________________ 23
Tail Surface, Wind Tunnel Test of Six Horizontal Tail Surface Designs having the USA-47 Airfoil
Sections (and Supplement)_____ __ ____ ___ ______________ ___ ____ _________ ___ _________________ 511
Take-Off Characteristics DH-4 Airplane___ ________ ______________ __ ______ ___ __ _________ ___ ______ 480
Tanks:
Braender, Test of Experimental Leakproof Tanks ___ ___ ____ __________________ -------__ _______ 113
Covering Wing Gasoline Tanks in Martin Bombers__ ______ _______ ____________________________ 105
Test of Crash Proof Tanks----- ----- - - - - ------- -------------------- ----------------------- 70
Test of Thick Walled Leakproof Tanks Supplied by the Goodyear Tire & Rubber Co_ ____ __ ____ __ 136
Test of Thick Walled Leakproof Tanks Supplied by Miller Rubber Co____ ______________________ 114
Tapes, General Descriptive Matter on Airplane Fabrics, Tapes, and -Cords__ ___ ____ _______ ____ __ ____ 45
Technical Reports, Index to Technical Reports of Engineering Division_______ ____ __________________ 93
Terminology, General Aeronautic Terminology________ ________ ________________________________ __ _ 21
Test Engine, Comparison of Piston Side Thrusts in the Modified R-1 400 H. P . Radial Engine and the
Single-Cylinder Test Engine __ ___ ________________________ ______ _________ _________________ - 525
Thermometer, Electric, Hartmann & Braun, Laboratory Test___________________________________ __ _ 277
Thermometer, Temperature Effect on Capillaries of Liquid and Vapor Pressure Thermometers_________ 339
Thomas Morse. See "Airplane."
Time Study of the Movements of the Firing Mechanism of the 37-mm. Automatic Baldwin Cannon____ 16
Tipping, Metal, of Aircraft Propellers__ __________________________ _______________________________ 246
Tip-Vortices Shown by the McCook Field Wind Tunnel______ ____________________________________ 262
Tires, Storage and Preservation of Rubber Goods, Tires, and Tubes________________________________ 48
Tire and Wheel:
Discussion of Airplane Tires and Wheels (and Addendum)------------------------------------ 303
Report on Special Airplane Wheel and Tire (see Supplement)---------------------------------- 154
Report on 36 by 8 Inch Straight-Side Tire and Wheel____________________ ____________________ 207
Results of Static Tests on Standard Airplane Tires and Wheels __ _______________________ ______ ·_ 220
Report on Special Airplane Wheel and Tire (28 by 4 Straight-side Tire, One-piece Rim)___________ 278
Torque Stand and Flight Test of Compression Relief Device on 300 H.P. Hispano-Suiza_____________ 131
Torque, Start.ing Torque on Liberty, Hispano-Suiza, and other Aviation Engines_____________________ 126
Torsional Strength of Steel Tubing______ __________ __________________________________ ___________ 263
Torsional Test:
Curtiss NBS-4 Fuselage ______________ ------ __ ----- - - --- -- -- ---- ---------- - - --- --- - - -- ---- 513
G. Elias NBS-3 Fuselage _________________ __ __________________________ - _ _ _ ·-_ _ _ _ _ _ _ _ __ _ _ 517
Martin Bomber NBS-L ____ - - -- _ ------- ----- ----- ________ -- -- - - - - ------ -- ----- - ----- - -- _ _ 515
Training:
Aerial Bombardment Manual-
Part 1, Introduction and Preface _____________ __ ___________ ________ - - - _ - - - -- --- -- __ - - _ _ 54
Part 2, Rules and Regulations ___________________ ___ ______ ----- ______ __ - _ ___ _ _ __ __ ___ _ 55
Part 3, Organization of Training Department and Ground Training for Pilots and Bombers____ 56
P art 4, Flying Training for Pilots and Bombers __ ___________ ______________ __ - ~ _ _ _ _ _ _ _ _ 57
Part 5, Operations (Service Squadrons) and Appendix______ ____ ________ __________________ 58
Aerial Navigation Instructions, ProvisionaL _________ __ ~ _______________ ___ ______ ___ - _ _ _ _ _ _ _ _ 82
Aerial Observation for All Arms ________________ __ _____ - ___ - - -- -- - - - - - - - - - -- ---- - - - -- - ---- - 85
Aerial Observation for Target Practice at Fort Monroe, Va___ _______________________ ___ _______ 142
Aerial Tactics, Observation, Bombardment, Pursuit-Combat __________ _______ - - _ - _ - _ - _ - _ _ _ _ 88
Air Service Liaison Regulations-
Part 1, General Liaison with Line and Other Units__ ___ ___ ____ _______ _____ ___ ___ _____ ____ 89
Part 2, Liaison with Infantry ________ ___________________________________ __ ----- _______ 90
Part 3, Liaison with Artillery ____ __________________________ _________ - ___ - - __ - -- - - - - _ _ _ 91
Air Servic_e ManuaL ______________ _____________ ___ __ ___ __ _____ __ ___ _____ __ - - - - - --- - - -- - _ -- 84
Air Tactics------------ -- - - ------- - ---- - -- ---- ---------------- - ---- -- --- -- ------ - ----- - -- 73
Characteristics, Limitations, and Employment of the Air Service_ _______ ___ ___ ________ ___ ______ 72
Corps Air Service, Field Manual, Provisional______ __________ _______________ __ _____________ __ 74
Flying Training Regulations, Provisional_ ____ _____ __ _________ ___ _________ - __ - _ - - - - - - - --- --- - 81
Manual of Aerial Photography___________________ _______ ___________________ ______ _____ _____ 96
Meteorolo~~ and A~ronautic;:s ___ _____ - ~- - ___ ______ _______ -~ - ____ ____ _ - -- ____ ___ ----- -- -- -- - 77
22
Information
Training-Continued. Circular No.
Methods in Observation Practiced with Fifth Corps______________ ___ __________ _______________ 115
Notes for Communications Officers-
ProvisionaL_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 78
Code Instruction______________________________________ ______________ ________ ______ ___ 79
Vacuum Tubes--- - ------------------ --- ------- ----- --- - ------------- - ---------------- 80
Pursuit and Combat Flying Training R egulations_ ___ ________ __ ______ __ __________________ ____ 83
Pursuit Pilots ________________________ __________________ ___________ ___ ______ __ _________ ~ -- 87
Recent Operations, General Principles, Corps and Army Observation, Purs uit, Day Bombardment,
Balloons _ _______ __ ______ :_ _________ ___________ __ __ ________ __ _________ ____ __ ____ __ ____ _ 76
Regulations for, Corps Air Service Operations Officers ---- -- --- ------- - --~------------ ---- --- - 86
Tactical History of Corps Observation Air Service, A. E. F_ ___ ____ _____ __ __ ____ _____ ____ _____ _ 75
T actical Manual of Aerial Bombardment _ ____ _________ -- " __ ____ _________________ ___________ 140
Transcontinental, First Transcontinental Reliability and Endurance Test_ __________________ __ ______ 2
Transport. See "Airplane." .
Transp-ort, Wind Tunnel T est_______________ ______ ________ __ ________ ___ ________ __ ___ _________ _ 533
Treatise for Radio Mechanics ___ ------ _____ ________ ______ ___ --- __ _ __ ___ __ _ _ _ ___ ____ __ _ __ _ __ __ _ _ 229
Treatment, Z-D Process for Treatment of Light Alloys to I nhibit Corrosion and to Minimize Porosity___ 448
Trip, Report of General Mitchell's !Jnspection Trip_ _____ ______ ___ _______ ___________ _____ __ _____ __ 391
Truss Ribs, D esign of Large Trussed Ribs____ ___ _______ ____ ______ __ ____ _______ ____ ______ ________ 312
Truss Ribs, Experimental Reinforced Plywood _____________________ __________ _____ ____________ 212, 268
Tube:
Airplane Speaking Tube___ _____ __ __ ______ _____ ____________ ____ __ ________________ __ _______ _ 67
Spalding Voice Tube _____________________ ___________ ______________ ___ ___________ ~___ _____ 108
Storage and Preservation of Rubber Goods, Tires, and Tubes____________________________ _____ _ 48
Tubing:
Column, Crushing and Torsional Strength of Duralumin Tubing___ _____ _______________________ 4 70
Effect of the R atio of Diameter to Gage Thickness upon the Torsional Strength of Steel Tubing ___ 263
Physi(lal Properties of Chrome-Molybdenum Steel Tubing___ __ __ ___ ________ ____ __ _____________ 445
Thin-Walled Seamless Round and Streamline Steel Tubing__ ___ ________ _____ _____ _____ ____ ____ 247
Type 1. See "Airplane."
u
Udylite Process, Cadmium Plating____ _______ ________ ____________________ ___ ____ ______________ _ 545
U. S. A. Airfoil. See "Airfoil."
U.S. Engine, Model W-1, Carburetion, Heat Rejection, and Weight D ata____ __________________ ___ _ 361
U. S. XB-1-A. See "Airplane, XB-1-A."
Universal T est Engine_____ ____________ ___ ____ ______ __ __ __ ___________________ ______________ ___ 4 7
V-40. S ee " Airplane."
VCP-1. See "Airplane."
VE-7. See "Airplane."
v
Valve Lift, Variation in Volumetric Efficiency of an Engine with Valve Lift_ ________________________ 356
Valves, T est of Mone! Metal Valves in Liberty Single Cylinder Engine _____________ _____ ______ ___ __ 9
Vaporizing Device, Test of The Canton Electrical Vaporizing D evice ____________________ __ ___ ____ __ 125
Varnish, R equirements of Spar Varnish for Aircraft________ ______ _____ _______ _________ ______ ___ __ 494
Velocity Determination in McCook Field Wind Tunnel______ ____________ _________________________ 202
Verville R acer. See "Airplane."
Vibration-Fatigue and Vibration of Metals_______ ___ _______ ___ __ ________________________________ 255
Visualization of Air Flow ___ __ _________ ------- -------------_____ _______ _____ ___ ___ ____________ 148
Voice Tube, Spalding _____ ___ ____________ ------___________ ____________________________________ 108
Volumetric Efficiency, Variation in Volumetric Efficiency of an Engine with Valve Lift__ ____________ 356
Vortices-Tip, Shown by the McCook Field Wind Tunnel_______________ __ _____ ___ ______ __ _________ 262
Vought. See "Airplane."
w
W-1. See "Engine."
Walker Radial Engine, Standard R eport_________________________________________________ ___ ____ 251
Wasp. See "Engine." .
Water, D etermination of Water in Gasoline_____ ________________ _______ ___ __ _____ ___ ______ ______ 320
Water, Tables Showing the F reezing P oints and Specific Gravity of Alcohol Water Mixtures______ ___ 178
Weather Conditions in Transcon tinental R eliability Test__________ ________________________________ 2
Web, Plywood Webs for Box Beams__________________ ___ ___ ___________________________ ____ _____ 516
Weed Shackle (Moc\ified) for :flomb R,a,ck •• _ ~ _ ~ _ ~~ ~ _______ ~ ~ ~~~- ~ _ ~~ ~ - ~ ~ - _ ~ - ~- ~-o~- ~ -o-o- ~~~ ~ ·- __ _ ao&.
23
Information
Circular No
Welding Process, Adaptability of Hyde Welding Process to Steel Engine Cylinder Construction ________ 364
Weston Model 44 Electrical Tachometer Test _____________ ____ --- __ -- -- - - ____ -- -- __ ---- -- -- -- -- _ 316
Wheel and Tire:
Special Airplane Wheel and Tire (and Supplement)--------- ---- ---- -------- -- --- -- ---- ------ 154
36 by 8 inch Straight-side __________________ ~ _______ __ ___ - - -- - - - - - - -- -- -- -- - --- - - - --- -- _ - - 207
28 by 4 Straight-side Tire, One-Piece Rim___________________________________ _______________ 278
Wheels:
Airplane Tues and Wheels (see Addendum) _____ ------------------- __ ---------_---- - ________ 303
Effect of Spoke Lacing on the Physical Properties of Airplane Wire Wheels_ _ _ _ _ _ _ 537
Shock-Absorbing, J . V. Martin, Static Test______________________________________ _____ __ ____ 254
Static Tests on Standard Airplane Tires and Wheels __________________________ -_ - _ 220
Wind Tunnel:
Design of Intake BelL ____________ ___________________ __ _____________ - - _____ - _ _ 217
Efficiency of McCook Field Wind TunneL ____ __________ _________ ___ - - _ - ___ - ___ - _ -_ _ _ 169
McCook Field 5-Foot Wind TunneL ____ ______ ______ _____ ___ ________ - ___ - - - - - __ - __________ - 341
McCook Field Wind TunneL _ _ _ _ 196
w
Wing:
Charts for Solution of Stresses----- - --- ---- -- ------ ----------- --- ---------------------- - --- 555
DH-4, Static Test _________ ___________ ----- --- ------------ - ---- ----- ------ --- - - __ - ___ _ 36
Determination of Best Wing Loading for Single-Seater Pursuit Airplane___ ______ __ ____ _________ _ 315
Effect of Variation in Load Factors on Structural Weight of Wings_ ~ - - - - --- - ----- - ----- -------- 318
Internally Braced Biplane Wings ____ __ __ _____ _____ ___ - _ - - - - - - - - - - - - - - - - - - - - - - - - - _ - _ _ 440
Junker Biplane---------- -------------- -- ------- ------ ------------------------- --- - ------ 230
Load Distribution among the Spars in Multi-Spar Construction __ ----- __ _ ---- ____ --- --_____ ___ 394
Loening, Official Performance Test of Atlantic XC0-8______________________________ _____ _____ 522
PW-1, U.S. A. 27--------------------------------------------------------- - ------- - ----- 225
Tests on Experimental 15-inch Metal Spars and 11-foot Chord Metal Wing Ribs_______ ______ __ __ 556
Weights-------- ----- ---- ------------------------------------------------------ - - --- --- - - 541
Wind Tunnel Test of the Fokker PW- 5 with the V-40 Wing and the PW-5 Wing___ _________ ____ 474
Wing Beams, Effect of Routing, Modulus of Rupture, and other Strength Properties___ ______ _____ ___ 240
Wing Beams, Test on Wing Beams and Steel Tubing Taken from the Fokker D-VIL_ _______________ 104
Wing Construction, Stress Analysis of an Airplane Cellule of the Multi-Spar Type_ __________________ 52
Wing Coverings---------------- ------ ---- ------------ ---------- ------------ ------ --------- -- - 250
Wing Coverings, Effect of Climate _____________ ____ _____________ ________ ____ ____ ---- - -_____ ____ 384
Wing Fittings -------- - ----- --- ---------- --- -------------------- ------- ----- ------- ----- - - --- 387
Wing Flap, Test of DH-4B Wind Tunnel Model_________________________________________________ 552
Wing Gasoline Tanks, Covering Wing Gasoline Tanks in Martin Bomber___________ ___ ___ _________ _ 105
Wing Ribs:
Design of Large Trussed Ribs _________________________ · _____________________ --- _ 312
Experimental Reinforced Plywood Truss Ribs ___ -------- _____________ ------___ ____________ __ 268
Strength-------------------------------------------------------------------------------- 443
Wing Section, Preliminary Choice of a Wing Section____________________________________ ________ __ 117
Wire, Effect of Zinc Plating on the Physical Properties of Streamline Wire _________ ____ __ ___ ________ 201
Wireless. See "Radio."
Woods, Properties of Woods at 10 Per Cent Moisture_________ ________ _______________ ___ __________ 53
Wright. See "Engine."
x
Xylidine, Elimination of Detonation by the Addition of Xylidine, Ortho-Toluidine, Benzol, and General
Motors Anti-Knock No. L ________________________ ----- ----- ______ ---- __ __ __ ___ ___ _ _ _ _ __ 319
z
Z-D, Process for Treatment of Light Alloys to Inhibit Corrosion, to Minimize Porosity, and to Effect
Desired Physical Propertie~ - _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ 448
Zenith. See "Carburetor."
Zinc, Physical and Metallographic Properties of Copper-Zinc-Aluminum Alloys Containing Small
Amounts of Magnesium__ _________ __________ _____________________________________ _____ ______ 393
Zinc Plitting, Effect of Zinc ~lating on t h\l Physic11-l Properties of Streamline Wire--,-- ,, -------- - --- 201
NUMERICAL LIST
No. Title of circular and Air Corps Library File No.
*1. Announcement. (D00.12/73.)
2. Report on First Transcontinental Reliability and Endurance Test. (C71.6/53.)
*3. Air Medical Service; The Aviator's Heart; Roentgen Ray Studies Under Conditions Simulating High
Altitude; Recent Work in Personality Study; The Effects of Smoking on Visual Acuity; A Device
Adapting the Barany Chair to the Rebreathing Tests; Psychopathology Under Low Oxygen Tension;
A Note on Oxygen Supply for Aviators; A Comparison of Two Methods of Applying Prism Tests to the
Eyes; The Speed of Accommodation; Abstracts of the Literature on the Anatomy and Physiology of
the Semicircular Canals; Cultivating the Balance Sense; The Changes in the Content of the Hemo­globin
and the Erythrocytes of the Blood in Mau During Short Exposures to Low Oxygen; Circulatory
Responses to Low Oxygen Tension; A Test for the Judgment of Distance. (B63/6.)
*4. The Air Medical Service and the Flight Surgeon. (B63/7.)
*5. Hispano-Suiza Engine, Model E and I , Ignition Timing Instructions and Chart; Dixie Type 800 Magneto.
(D52.41 Hispano-Suiza/56.)
*6. Tentative List of Decorations Awarded United States Army Air Service, American Expeditionary Forces.
(B00.5/11.)
*7. Enemy Aircraft Destroyed by United States Army Air Service. (B00.21/3.)
*8. Destructive Whirling Test of "Micarta" Propeller (Westinghouse) and Rubber-Covered Propellers with
Hard and Soft Rubber Leading Edges. (D52.43/186.)
*9. Test of Mone! Metal Valves in Liberty Single Cylinder Engine. (D52.41/Liberty/89.)
*10. Present Procedure in Static Testing of Airplane Engineering Division, United States Army Air Service.
(D00.11/5.)
*11. Modified Hart Adjustable Pitch Propeller. (D52.43/189.)
12. "Micarta" Liberty Propeller. (D52.41/188.)
*13. Test of Various Types of Gasoline Hose Connections. (D52.4/2.)
*14. Armament Test of Single Seater Pursuit Airplane. (D52.1/0renco/2.)
*15. Parachute Tests of Model 300, D-1. (D52.9/91.)
*16. Time Study of the Movement of the Firing Mechanism of the 37 mm. Automatic Baldwin Cannon.
(D72.2/34.)
*17. Comparative Merits of Dixie Magnetos and Delco Battery Ignition System When Used on Liberty " 12"
Aero Engine. (D52.41/Liberty/96.)
18. Test of the Alsop All-spark Ignition Device and Measurement of Distances. (D52.413/32.)
*19. Report of Test of French 37 mm. High Explosive Ammunition. (D72.2/32.)
20. Effect of Reduced Engine Compression Pressure on Pre-Ignition with Mica Plugs. (D13.413/Spark
Plug/42.)
*21. Aeronautical Book and Magazine List. (C13/53.)
22. Report of Preliminary Test of Bijur Ignition End Starting Motor for Liberty" 12." (D52.41/Liberty/108.)
*23. Report of Static Test on DH-4 (Dayton-Wright) Tail Surfaces. (D52.l/DH.4/90.)
*24. Report on Tests of Modified Firing Mechanism for the Baldwin 37 mm. Cannon. (D72.2/28).
*25. Report of Static Test of Wing Cellule of Pomilio PVL--8 with Unequal Loads on Right and Left Wings.
(D52.1/Pomilio/10.)
*26. Report on Investigation of Silver Solder. (Dl0.1/66 .)
27. Methods of Correcting the Longitudinal Balance of JN- 6H Airplanes. (D52.1/Curtiss JN6/3.)
*28. Vibration Characteristics of the 300 Horsepower Hispano-Suiza Engine. (D52.41/Hispano-Suiza/70.)
*29. Report of Static Test of Fokker Type D-VII Chassis. (D52.1/Fokker/30.)
*30. Report on Airplane Short Wave Radio Telephone Set. (D13.411/35.)
*31. Rate-of-Climb Indicators, Description and Theory. (D13.3/51.)
*32. Report of Test of 37 mm. Automatic Cannon in Cannon Engine. (D72.2/33.)
*33. Report on Wind Tunnel Test of Laddon Night Pursuit Airplane. (D52.1/Laddon/l.)
*34. Report of Static Test of the Fuselage of the DH-4 (Dayton-Wright) . (D52.l/DH-4/92.)
*35. Comparative Test of Special Homogeneous Gasoline and Commercial Aeronautic Gasoline. (Dll.31/44.)
*36. Report of Static Test of DH-4 (P-34) Wing Cellule. (D52.1/DH-4/91.)
• Supply exhausted. Copi~ may be obtained on loan from Air Corps Library, Office, Chief of Air Corps.
(24)
25
No. Title or circular aod Air Corps Library File No.
*37. Performance Test of U. S. X. B. I.-A. with 300 Hor epower Hispano-Suiza Engine. (D52.1/U. S. XBIA/1.)
*38. Report of Static Test of the Landing Cha sis of DH-4 (P-34). (D52.1/DH-4/86.)
*39. Structural Weight Analysis of Airplanes. (D52.l/285.)
*40. Performance Test of Thomas-Morse MB-3 with 300 Horsepower Hispano-Suiza Engine. (D52.1/Thomas·
Morse/22.)
*41. Standard Engine Report on the Six-Cylinder Benz Aeronautic Engine Rated at 200 Horsepower at 1,400
Revolutions Per Minute. (D52.41/Benz/7.)
42. Power Required to Drive Aeronautic Engine Magnetos and Generators. (D52.4/3.)
43. Report on Wind Tunnel Test of Messenger Airplane. (D52.15/131.)
44. General Descriptive Matter on Dopes and Instructions for the Application of Dope and Pigmented Pro­tective
Coverings. (Dll.23/20.)
*45. General Descriptive Matter on Airplane Fabrics, Tapes and Cords, and Instructions for the Application of
Fabric to the Wings. (D24.31/16.)
46. Aeronautic Gasoline, Specifications and Methods for Testing. (Dll.31/ 19.)
*47. Universal Test Engine. (D52.41/92.)
*4 . Storage and Preservation of Rubber Goods, Tires and Tubes, Liberty Ignition System In truction Board.
(D00.22/6.)
*49. Report of Wind Tunnel Test on United States Army Aerofoils 25, 26, 27, 2 , 29. (D52.33/145.)
*50. Performance Test of Loening Monoplane with 300 Hor epower Hispano-Suiza Engine. (D52.1/Loening/5.)
*51. Performance Test of Ordnance Type " D" with 300 Horsepower Hispano-Suiza Engine. (D52.1/0renco/3.)
*52. Discussion of tress Analysis of an Airplane Wing Cellule of the Muti-spar Type of Wing Construction, with
Special Reference to the Loading Condition of the Standard Static Test. (D52.33/146.)
*53. Properties of Woods at 10 per cent Moisture. (Dll.1/139.)
54. Aerial Bombardment Manual, Part 1, Introduction and Preface. (C52 .2 ~4/37-Part 1.)
*55. Aerial Bombardment Manual, Part 2, Rules anrl Regulations. (C53.234/37-Part 2.)
*56. Aerial Bombardment Manual, Part 3, Organization of Training Department and Ground Training fo r
Pilots and Bombers. (53.234/37-Part 3.)
57. Aerial Bombardment Manual, Part 4, Flying Training for Pilots and Bombers. (C53.234/37-Part 4.)
58. Aerial Bombardment Manual, Part 5, Operations (Service Squadrons) and Appendix. (C53.234/37-
Part 5.) ·
*59. Test Report of Marlin (7 M. G.), Model 1916, After Changes Were Made in Top Lock Container toAccom­modate
Single Shot Mechanism to be Used with elson Gun Control. (D72.1/Marl in/14.)
*60. Airplane Tachometers. (Dl3.3/Tachometers/6.)
61. Testing of Airplane Tachometers. (Dl3.3/Tachometers/5.)
*62. Report on Air Fan Type FA-9. (D13.41/63.)
*63. Report of Radio Generator Airfan Head Resi ta.nee Measurement. (D13.41/64.)
*64. Standard Report on the 300 Horsepower Hispano-Suiza Aviation Engine with teel Cylinders.
(D52.41/Hispano-Suiza/67.)
*65. Performance Te t of U. S. X. B. I.-A. with 300 Horsepower Hispano-Suiza Engine Showing Improvement
in Performance with Propeller X-19677. (D52.1/U. S. X. B. I.-A./1 Supp.)
66. Report on Foster Modification in Liberty Delco Switch Assembly. (D52.41/Liberty/192.)
*67. Report of Airplane Speaking Tube. (Dl3.411/40.)
68. An Empirical-Theoretical Method of Comparative Prediction of Airplane Performance. (D52.15/91.)
69. Air Service Reserve Officers, April 15, 1920. (Bl0/30.)
*70. Test of Crash-proof Tanks. (D52.44/54.)
*71. Performance Test of Fokker D-VII with Liberty Si.'< Engine. (D52.1/Fokker/33.)
72. Notes on the Characteristics, Limitations, and Employment of the Air Service. (C70/30.)
73. Air Tactics, by H . E . Hartney, Lieutenant Colonel, Air Service. (C70/20.)
*74. Corps Air Service, Field Manual (Provi ional) Organization-Operations. (A00.1/11- Part I.)
75. Tactical History of Corp Ob ervation, Air Service, American Expeditionary Force. (A00.1/11-Part II.)
76. Notes on Recent Operations, General Principles, Corps and Army Observations, Pursuit, Day Bombard­ment,
Balloons. (C70/38.)
*77. Meteorology and Aeronautics, Location and Layout of Flying Fields, Exploration of Upper Air, Forecasts,
Light Charts, Magnetic Declination Charts. (A40/18.)
*78. otes for Communications Officers (Provisional) . Wire Telephone, Radio Telephone, Wire Telegraph,
Radio Telegraph, Radio Personnel and Terrestrial Station Equipment, Visual ignalling, Dropped
Messages, Airplane Couriers, Mounted Couriers, Aerial Photography in Liaison, Carrier Pigeons, Unit
Requirements for United States and Service Operations. (Cll.2/19.)
•Supply exhausted. Copies may be obtained oo loao from Air Corps Library, Office, Chier or Air Corps.
26
No. Title of circular and Air Corps Library File No.
79. Notes for Communications Officers (Code Instruction). (Cl0/15.)
*80. Notes for Communications Officers (Vacuum Tubes), Provisional Electron Theory, Two-element Electron
Tubes, Three-element Electron Tubes, the Oscillating Tube, Continuous Wave Reception, Amplifica­tion,
Radio Telephony. (D13.411/37.)
81. Flying Training Regulations, Provisional, Curriculum of Flying Instruction for Flying Schools, Field and
Air Rules, Organization of Flying Department, Method of Installing and Organizing a Flight, Records
and Reports. (C53.22/69.)
*82. Aerial Navigation Instructions, Provisional, Maps and Map Reading, Magnetism and the Compass,
Setting the Course, Checking the Course, Navigation by Astronomical Observations, Cloud Flying.
(Dl3.3/28.)
83. Pursuit and Combat Flying Training Regulations. Provisional .Introduction, Course of Training Fighting
Tactics. (C53.221/2.)
*84. Air Service Manual, Organization, General Principles, Security, Shelters, Marches and Convoys, Orders
and Reports, Drills, Ceremonies, Parades, Inspections, Supply, Aerial Photography, Meteorology and
Aeronautics, Cooperation with Antiaircraft Artillery, Formation Flying, Rules of the Airdrome and of
the Air, Dropping of Supplies to Infantry Troops by Airplane, Aerial avigation, Pursuit Aviation,
Bombardment Aviation, Observation Aviation, Balloons. (C53/103.)
*85. Aerial Observation for all Arms. Aerial Reconnaissance Cooperation of Air Servic.e and Infantry,
Cooperation of Air Service and Cavalry, Cooperation of Air Service and Tanks, Balloon Observation
Aerial Photography. (C53/98.) . '
86. Regulations for Corps Air Service Operations Officers, Including Description of Divisional Corps Observa­tion,
Operations Room, Duties of Operations Officer for Squadron, Group, Corps. Relations with
Engineer Officer and Adjutant. (C70/43.)
87. Notes for Pursuit Pilots. Manual for Flight Commander, Pilot Night, Pursuit Pilot, Two-seater Pursuit
Pilot, Two-seater Pursuit Gunner. (C53/101.)
*8 . Aerial Tactics. Observation (Army and Corps) Bombardment (Day and Night), Pursuit-Combat (Pur­suit-
Attack). Includes Information, Liaison, Security, Orders and Reports, Marches and Convoys,
Group Organization, Squadron Organization, Preliminary Training at the Front, Missions, Raids,
Combat. (C70/3.)
*89. Air Service Liaison Regulations, Part I, Liaison with the Line between Flying Units, between Army Air
Service and A. A. Artillery, Searchlight Engineers, Observation Balloons, Plans of Employment, Field
Orders, Battle Orders, Telephone Liaison, Radio Liaison, Reports. (Cll.1/21.)
*90. Air Service Liaison Regulations, Part II, Liaison with Infantry. (Cll.1/21.)
*91. Air Service Liaison Regulations, Part III, Liaison with Artillery, Methods of Fire (Airplane and Balloon)
Signals. (Cll.1/21).
92. The Variation of Horsepower with Altitude. (D52.45/50.)
93. Index to Technical Reports of Engineering Division, Supply Group, Air Service, Nos. 1-1300, January
1918-June, 1920. (C13/32.)
*94. Report on Auxiliary Control for Use in Connection with the Airplane Radio Telephone Set, Type SCR- 68.
(013.411/46.)
*95. Report of Control Cable Guide Running Test. (D52.39/76.)
96. Manual of Aerial Photography, Provisional; Value and Scope, Personnel, Routine of Work, Materials,
Methods. (A30.2/ 12.)
97. Official Airplane Report Form. (D60.1/46.)
98. Report on Comparative Merits of Various Insignia. (A81/34.)
*99. Air Medical Service, Operation of the Medical Division of the Air Service Since the Signing of the Armi­stice,
A New Type of Rebreather and Other Respiratory Apparatus, The Psychological Effect of Oxygen
Deprivation, Cardio-Vascular Rating as a Measure of Physical Fatigue and Efficiency;- Dark Adapta­tion,
with Special Reference to the Problems of Night Flying, Contribution to the Study of Dark Adap­tation,
Maddox Rod and Screen Test Combined, Respiratory Volumes of Men During Short Exposures
to Constant Low Oxygen Tensions Attained by Rebreathing, Alveolar Air, Respiratory Volume at Low
Oxygen Tensions, Compensatory Reactions to Low Oxygen, The Reactions of the Cardiac and Respira­tory
Centers to Changes in Oxygen Tension, Relation of the Sighting Eye to the Measurement of
Heterophoria, Consideration of Some Tests for Determining the Sighting Eye, Maddox Multiple Rod:
A Consideration of its Optical Defects, A New Apparatus for Testing Accommodation, Stereomicrometer,
Judgment of Distance with Semaphores and a Screen at One Hundred Meters, Note on the Low-Pres­sure
Chambers Installed in the Medical Research Laboratory of the Air Service. (B63/7.)
• Supply exhausted. Copies m&}' be obtain11d on loan from Air Corps Library, Office, Chief of Aif Col"f'S.
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Tltle or circular and Air Corps Library File No.
Index to Air Service Information Circulars (Aviation) Nos. 1-100, Volume I, 1920. (D00.12/73.)
Report of Physical Tests on K Bar Struts from JV-Martin Airplane. (D52.1/J. V. Martin/2.)
A Method for Determining the Angular Setting of a Tail Plane to Give Balance at any Given Condition.
(Al0.23/113.)
Report on Life of Wing Coverings Using Clear Dope. (D24.3/35.)
Report of Test on Steel Tubing and Wing Beams Taken from the Fokker D- VII. (D52.1/Fokker 36.)
Covering Wing Gasoline Tanks in Martin Bomber. (D52.l/Martin/ 14.)
Standard Altitude Chamber Test for Engines Submitted to the Bureau of Standards by the Engineering
Division. (D52.45/9.)
Report on Wind Tunnel Test of Verville Racer. (D52.1/ Verville/ 10.)
The Spalding Voice Tube. (D13.411/42.)
Report on Performance Test of Thomas Morse S-6 with 80 H. P. LeRhone Engine. (D52.1/Thomas
Morse/26.)
Report of Control Cable Guide Running Test. (D52.39/78.)
Comparative Test of Auxiliary Starting Devices for the Liberty Engine. (D52.415/16.)
Ground Test of Cannon Turret Mount. (D72.21/5.)
Test of Second Shipment Braender Experimental Leakproof Tanks. (D52.44/62.)
Test of Five Thick-Walled Leakproof Tanks Supplied by Miller Rubber Company. (D52.44/61.)
Methods in Observation Practiced with Fifth Corps First American Army on the Fronts. (C71.2/3l.)
Standard Test of Hercules Spark Plugs. (D52.413/Spark Plug/43.)
Preliminary Choice of a Wing Section. (D52.33/159.)
Lubricating Oils-Specifications and Method for Testing. (Dll.2/14.)
Catalogue of Motion-Picture Films and Lantern Slides. (D13.511/5.)
Observation, Selection, and Assignment. (Dll.2/14.)
Report of Tests on Shock Absorber Cord Submitted by Various Flying Fields and General Supply
Depots. (D52.55/8.)
tandard Fifty-Hour Endurance Test of Three-Cylinder Lawrance Aviation Engine. (D52.41/Law­rance/
4.)
Investigation of Physical and Chemical Properties of Aluminum and Aluminum Alloy Sheet--Part 1.
(Dl0.13/50.)
Test of Revisions in Cooling Systems for Air-Cooled Cylinders. (D52.414/56.)
Test of t ~e Canton Electrical Vaporizing Device as Applied to a Zenith Carburetor. (D52.411/Zenith/19.)
Starting Torque on Liberty, Hispano-Suiza, and other Aviation Engines. (D52.415/17.)
Standard Engine Report of Hall-Scott Engine, Type L-6, Rated at 200 H.P. at 1,700 revolutions per
minute. (D52.41/Hall-Scott/20.)
Report on X-B-A dooling System Tests with 1,875 R. P . M. Propeller and 140 Square-Foot Radiator.
(D52/414/57.)
Report on Interphone-Type SCR-57, Remodeled. (D13.42/7.)
Standard 50-Hour Endurance Test of Packard Aviation Engine Model 1 A-1116. (D52.41/ Packard/4.)
Torque Stand and Flight Test of Compression Relief Device on the 300-horsepower Hispano-Suiza
Aviation Engine. (D52.41/Hispano-Suiza/86.)
Performance Test of Roland D-VI-B with 200-horsepower Benz Engine. (D52.l/Roland/ 5.)
Report on Test of Thomas Morse MB-3 Cooling System. (D52.1/Thomas Morse/28.)
Flight Test of Packard Fuelizer on Liberty "12." (D52.41/Liberty/196.)
Standard Fifty-Hour Endurance Test of Packard Model lA-744 8-Cylinder Aviation Engine. (D52.41/
Packard/5.)
Test of Thick-Walled Leak-Proof Tanks Supplied by Goodyear Tire & Rubber Co. (D52.44/63._)
Destructive Whirling Test of Aero Marine Propeller. (D52.43/270.)
Power Plant Laboratory Calibrati