MINOR TYPES - World War II

USAAC / USAAF Aircraft

A-31 / A-35 Vengeance
Base aircraft: Vultee Model V-72
First flight: 30/11/1941
Engine: 1 Wright Cyclone R-2600 / 1600hp - 1700hp / Radial 14 / Air.
Type: Single-engined, close-support dive-bomber.
In service: 1941 - 1945

Vengeance Mk. I
1941, RAF purchases from Vultee (VN).
(RAF) AN838 / AN999
(RAF) AP100 / AP137
(RAF) FP686
- From US stocks, not counted.
200  
Vengeance Mk. II
1941, direct RAF purchases.
(RAF) AF745 / AF944
- Built by Northrop (NO).
(RAF) AN538 / AN837
- Built by Vultee (VN).
500  
A-31-NO
Lend-Lease deliveries for RAF.
41-30848 / 41-31047
All delivered as Vengeance Mk. I (19) / 
Mk. IA (181) to:
(RAF) EZ800 / EZ999.
200  
(XA-31C-NO)
1, 1942, engine upgrade.
A-31-VN
Lend-Lease deliveries for RAF.
41-31048 / 41-31147
All delivered as Vengeance Mk. III to:
(RAF) FB918 / FB999
(RAF) FD100 / FD117
100  
(RA-31-NO / -VN)
243, 1942, repossessions by USAAF.
(YA-31C-VN)
5, 1942, engine upgrades for B-29 program.
XA-31A-VU
1942, prototype test-bed, later to XA-31B-VU.
42-35824
1  
A-35A-VN
1942, equipment / armament upgrade.
41-31148 / 41-31246
99  
A-35B-VN
1942, engine / armament upgrade.
41-31247 / 41-31447
42-94149 / 42-94548
42-101236 / 42-101465
562 delivered as Vengeance Mk. IV to:
(RAF) FD118 / FD417
(RAF) HB300 / HB550
(RAF) KG810 / KG820
831 Total: 1931

AT-8 / AT-17 / UC-78 Bobcat
Base aircraft: Cessna Model T-50
First flight: 1940
Engines:
(AT-8) 2 Lycoming R-680 / 295hp / Radial 9 / Air.
(AT-17) 2 Jacobs R-775 / 245hp / Radial 7 / Air.
(UC-78) 2 Jacobs R-755 / 225hp / Radial 7 / Air.
Type: Twin-engined, trainer / utility-cargo aircraft based on the
civil Cessna T-50 (1939, 43 built).
In service: 1940 - 1949

AT-8-BH
1940, advanced trainer.
41-005 / 41-037
33  
AT-17-CE
1941, engine upgrade.
Some later redesignated AT-17E-CE.
42-002 / 42-451
450  
AT-17A-CE
1941, minor changes.
Some later redesignated AT-17F-CE.
42-13617 / 42-13806
42-13867 / 42-13899
182 delivered as Crane Mk. IA to:
(RCAF) FJ100 / FJ239
(RCAF) FJ248 / FJ289
223  
AT-17B-CE
1942, equipment changes.
Some later redesignated AT-17G-CE.
Some completed as UC-78B-CE.
42-38692 / 42-39157
466  
AT-17C-CE
1943, equipment changes.
42-13807 / 42-13866
60  
AT-17D-CE
1943, equipment changes.
Redesignated as UC-78C-CE.
42-13900 / 42-14030
131  
C-78-CE
1942, transport version, engine upgrade.
Redesignated as UC-78-CE in 1943.
42-58110 / 42-58540
43-7281 / 43-7853
43-31763 / 43-32112
67 delivered as JRC-1 to US Navy:
BuNo.55772 / 55783
BuNo.64442 / 64496
1354  
(ZC-78-CE)
1+, 1948, redesignation as obsolete.
UC-78A-CE
1942, civil impressed aircraft.
42-38276 / 42-38278
42-38374, 42-38375
42-38377, 42-38379
42-97033 / 42-97039
42-43844
44-52998, 44-53001
(17)  
UC-78B-CE
1942, minor changes.
42-39158 / 42-39346
42-71465 / 42-72104
43-7854 / 43-8180
43-32113 / 43-32762
1806  
UC-78C-CE
1943, equipment changes.
42-14031 / 42-14166
42-72105 / 42-72164
196  
Crane Mk. I
1942, as AT-8, for RCAF.
(RCAF) 7657 / 7836
(RCAF) 7843 / 8202
(RCAF) 8651 / 8750
640

Total: 5359

AT-10 Wichita
Base aircraft: Beechcraft Model 26
First flight: 1941
Engines: 2 Lycoming R-680 / 295hp / Radial 9 / Air.
Type: Twin-engined, multi-engine trainer for USAAF.
In service: 1941 - 1945

AT-10-BH
1941, wooden fuselage,
single fin / rudder.
41-1711 / 41-1860
41-9246 / 41-9436
41-26252 / 41-27331
42-2064 / 42-2413
1771  
(XAT-10A-BH)
1, 1945, prototype V-tail conversion.
AT-10-GF
1943, Globe Aircraft Corp.
built version.
42-34584 / 42-35183
600 Total: 2371

O-47
Base aircraft: North American NA-25 / NA-51
First flight: 07/1935
Engine: 1 Wright Cyclone R-1820 / 850hp - 1060hp / Radial 9 / Air.
Type: Single-engined, observation aircraft.
In service: 1937 - 1945

XO-47
1935, prototype, NX2079 (civil reg.),
built by General Aviation Mfg. Corp.
36-145
1  
O-47A
1937, engine upgrade, minor changes.
37-260 / 37-368
38-271 / 38-325
164  
(Model NA-60)
1, ventral observation station.
O-47B
1939, engine upgrade, minor changes.
39-065 / 39-138
74  Total: 0239

P-36 Hawk
Base aircraft: Curtiss Model 75
First flight: 15/05/1935
Engine: 1 P&W Twin Wasp R-1830 / 950hp - 1200hp / Radial 14 / Air. 
Type: Single-engined fighter.
In service: 1938 - 1942

Model 75
1935, prototype, later to
Model 75A / 75B with engine
upgrades.
NX17Y (civil reg.)
1  
Y1P-36
1937, engine upgrade.
Later redesignated as P-36.
37-068 / 37-070
3  
P-36A
1938, engine upgrade, minor changes.
38-001 / 38-180
180  
(P-36B)
1, 1938, engine upgrade.
(XP-36D / E / F)
3, 1939, armament upgrades.
(XP-40)
1, 1938, engine / design upgrade.
(XP-42)
1, 1939, engine upgrade.
P-36C
1938, engine / armament upgrade.
38-181 / 38-210
30  
P-36G-CU
1942, cancelled Norway order.
42-38305 / 42-38322
42-108995 / 42-109006
30 Total: 0244
Production also covered export variants to various allied
countries and deliveries to the RAF as Mohawk Mk. I / Mk. IV.

P-43 Lancer
Base aircraft: Republic Model AP-4
First flight: 22/12/1938
Engine: 1 P&W Twin Wasp R-1830 / 1200hp / Radial 14 / Air.
Type: Single-engined fighter developed from the earlier
Seversky (Model AP-1) P-35 and (Model AP-4) XP-41.
In service: 1941 - 1945

Model AP-4
1938, co. demonstrator.
NX2597 (civil reg.)
1  
YP-43
1940, service test version.
39-704 / 39-716
13  
P-43
1941, engine upgrade.
41-6668 / 41-6721
54  
(RP-43-RE)
1+, 1942, "restricted" from combat. 
P-43A
1941, engine upgrade.
40-2891 / 40-2970
80  
(RP-43A-RE)
1+, 1942, "restricted" from combat.
P-43A-1-RE
1942, engine / armament upgrade.
41-31448 / 41-31572
125 Total: 0273
(RP-43A-1-RE)
1+, 1942, "restricted" from combat.
(P-43B-RE)
150, 1942, photo reconn. conversions.
(P-43C-RE)
2, 1942, photo reconn. conversions.
P-43D-RE - cancelled reconn. conversion.
P-43E-RE - cancelled reconn. conversion.

PT-16 / PT-20 / PT-21 / PT-22 Recruit
Base aircraft: Ryan Model ST-A Sport Trainer
First flight: 1939
Engines:
(PT-16 / PT-20) 1 Menasco L-365 / 125hp / In-line 4 / Air.
(PT-16 / PT-20 / PT-21) 1 Kinner R-440 / 125hp - 132hp / Radial 5 / Air.
(PT-22) 1 Kinner R-540 / 160hp / Radial 5 / Air.
(PT-25) 1 Lycoming O-435 / 185hp / Opposed 6 / Air.
(NR-1) 1 Ranger L-440 / 130hp / In-line 6 / Air.
Type: Single-engined, 2-seater open cockpit trainer based
on the civil Ryan ST monoplane design (1934, ~300 built).
In service: 1939 - 1945

XPT-16
1939, prototype from civil
model, NC18907 (civil reg.).
39-717
1  
(XPT-16A)
1, 1940, engine upgrade. 
YPT-16
1939, service test version.
40-040 / 40-054
15  
(YPT-16A)
13, engine upgrade. Later: PT-16A.
PT-20-RY
1940, stronger, wider fuselage.
40-2387 / 40-2416
30  
(PT-20A-RY)
27, engine upgrade.
(PT-20B-RY)
3, engine upgrade.
PT-21-RY
1941, engine upgrade.
41-1881 / 41-1980
100  
PT-22-RY
1941, engine upgrade, minor changes. 
41-15173 / 41-15745
41-20591 / 41-21040
1023  
(PT-22C-RY)
250, 1942, engine upgrade.
PT-22A-RY
1942, cancelled Dutch order.
42-57479 / 42-57503
25  
PT-22B-RY - cancelled.
YPT-25-RY
1942, engine upgrade, plastic fuselage.
42-8703 / 42-8707
5  
NR-1
1941, USN version of PT-21.
BuNo.4099 / 4198
100 Total: 1299

US Navy Aircraft

OS2U Kingfisher
Base aircraft: Vought Model VS-310
First flight: 20/07/1938
Engine: 1 P&W Wasp Junior R-985 / 450hp / Radial 9 / Air.
Type: Single-engined, observation-scout seaplane.
In service: 1940 - 1945

XOS2U-1
1938, prototype.
BuNo.0951
1  
OS2U-1
1940, engine upgrade.
BuNo.1681 / 1734
54  
OS2U-2
1940, engine / equipment upgrade.
BuNo.2189 / 2288
BuNo.3073 / 3130
158  
(XOS2U-4)
2, fuselage / wing changes.
OS2U-3
1941, engine / armament upgrade.
31 assembled by NAF.
BuNo.5284 / 5989
BuNo.09393 / 09692
100 delivered as Kingfisher Mk. I to:
(RN) FN650 / FN749.
300 additional airframes cancelled.
1006  
OS2N-1
1942, NAF built version of OS2U-3.
BuNo.01216 / 01515
300 Total: 1519

SB2U Vindicator
Base aircraft: Vought Model V-156
First flight: 04/01/1936
Engine: 1 P&W Twin Wasp Junior R-1535 / 750hp - 825hp / Radial 14 / Air.
Type: Single-engined, carrier-based scout & dive-bomber.
In service: 1937 - 1942

XSB2U-1
1936, prototype.
BuNo.9725
1  
SB2U-1
1937, engine upgrade.
BuNo.0726 / 0779
54  
(XSB2U-3)
1, 1939, twin float conversion.
SB2U-2
1938, equipment changes.
BuNo.1326 / 1383
58  
SB2U-3
1939, engine / armament upgrade.
BuNo.2044 / 2100
57 Total: 0170
Production included an export version (24 built) to France and
50 were delivered to the Royal Navy as the Chesapeake Mk. I,
(RN) AL908 / AL957.

TBD Devastator
Base aircraft: Douglas Model ?
First flight: 15/04/1935
Engine: 1 P&W Twin Wasp R-1830 / 800hp - 900hp / Radial 14 / Air. 
Type: Single-engined, carrier-based torpedo-bomber.
In service: 1937 - 1942

XTBD-1
1935, prototype.
BuNo.9720
1  
TBD-1
1936, engine upgrade,
various improvements.
BuNo.0268 / 0381
BuNo.1505 / 1519
129 Total: 0130
(TBD-1A)
1, 1939, conversion with floats.

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