ENGINE GUIDE - World War II

PISTON ENGINES

1st Column Number of engines / manufacturer.
2nd Column Engine name / engine designation + (civil designation).
3rd Column Maximum power output range across aircraft production run.
4th Column Configuration & number of cylinders / cooling method / extra notes.
T.C. Turbo Compound.
T.S.C. Turbo-Supercharger.
W.I. Water Injection.

Grasshopper Series

L-2, L-3, L-4, NE, L-8 Production
1 / Continental O-170 65hp Opposed 4 / Air
L-2, L-3, L-4 Impressments
1 / Continental O-170 65hp Opposed 4 / Air
1 / Continental A75-9 (civil) 75hp Opposed 4 / Air
1 / Franklin O-150 65hp Opposed 4 / Air
1 / Franklin O-175 65hp Opposed 4 / Air
1 / Lycoming O-145 65hp Opposed 4 / Air
1 / Lycoming GO-145 100hp Opposed 4 / Air
L-16 Production
1 / Continental O-190 85hp Opposed 4 / Air
1 / Continental O-205 90hp Opposed 4 / Air
HE Production
1 / Lycoming O-235 104hp Opposed 4 / Air
L-14, L-21 Production
1 / Lycoming O-290 125hp - 135hp Opposed 4 / Air
L-18 Production
1 / Continental O-205 90hp Opposed 4 / Air
L-6 Production
1 / Franklin O-200 100hp In-line 4 / Air

Beechcraft C-45 Expeditor

Civil Model 18 Production (pre WW2)
2 / Wright J3 Whirlwind R-760 320hp Radial 7 / Air
2 / Jacobs L-5 R-830 285hp Radial 7 / Air
2 / Jacobs L-6 R-915 330hp Radial 7 / Air
2 / Wright J6 Whirlwind R-975 365hp Radial 9 / Air
2 / Pratt & Whitney Wasp Junior R-985 450hp Radial 9 / Air
C-45, AT-7, AT-11, F-2, JRB, SNB Production
C-45G, TC-45G, C-45H, AT-11A, JRB-6, SNB-5 Conversions
2 / Pratt & Whitney Wasp Junior R-985 450hp Radial 9 / Air
Civil Model 18 Production (post WW2)
2 / Continental R-9A* 525hp Radial 9 / Air
2 / Pratt & Whitney Wasp Junior R-985 450hp Radial 9 / Air
* developed from the Wright Whirlwind R-975.

Bell P-39 Airacobra / P-63 Kingcobra

P-39 Production / XP-39B Conversion
1 / Allison V-1710 1100hp - 1325hp V-12 / Liquid
P-63 Production
1 / Allison V-1710 1325hp - 1425hp V-12 / Liquid

Boeing B-17 Flying Fortress

Model 299 Production
4 / Pratt & Whitney Hornet R-1690 750hp Radial 9 / Air
B-17*, Model 307 Stratoliner (C-75) Production
4 / Wright Cyclone GR/R-1820 900hp - 1380hp Radial 9 / Air
* B-17F, B-17G with T.S.C.
Model SB-307B Stratoliner Production
4 / Wright Twin Cyclone GR-2600 1600hp Radial 14 / Air
XB-38 Conversion
4 / Allison V-1710 1425hp V-12 / Liquid

Boeing B-29 Superfortress / C-97 Stratofreighter / B-50 Superfortress

B-29 Production / YB-29J Conversion
4 / Wright Cyclone R-3350 2200hp Radial 18 / Air / T.S.C.
XB-39 Conversion
4 / Allison V-3420 2600hp V-24 / Liquid
XB-44 Conversion (XB-29D - B-50 prototype)
4 / Pratt & Whitney Wasp Major R-4360 3500hp Radial 28 / Air / T.S.C.
XC-97 / YC-97 Production
4 / Wright Cyclone R-3350 2200hp - 2325hp Radial 18 / Air / T.S.C.
YC-97A to KC-97G, Model 377 Stratocruiser Production*
4 / Pratt & Whitney Wasp Major R-4360 3000hp - 3800hp Radial 28 / Air / T.S.C.
* KC-97L conversion with 2 General Electric J47-GE, 5200lbst, jet-pods.
B-50 Production*
4 / Pratt & Whitney Wasp Major R-4360 3500hp Radial 28 / Air / T.S.C.
* KB-50J conversion with 2 General Electric J47-GE, 5200lbst, jet-pods.

Boeing-Stearman PT-13 / PT-17 Kaydet

Model X70, Export Model 73, 75, PT-13, PT-17,
PT-27, N2S Production / Model X75L3 Conversion
1 / Continental R-670 220hp Radial 7 / Air
1 / Lycoming R-680 200hp - 220hp Radial 9 / Air
Export Model 73, 75, Model X75 Production
1 / Wright J3 Whirlwind R-760 225hp - 320hp Radial 7 / Air
NS-1 Production
1 / Wright J5 Whirlwind R-790 220hp Radial 7 / Air
PT-18 Production
1 / Jacobs R-755 225hp Radial 7 / Air
Model 76 Production
1 / Pratt & Whitney Wasp Junior R-985 320hp - 400hp Radial 9 / Air
1 / Wright J3 Whirlwind R-760 320hp Radial 7 / Air
1 / Wright J6-9 Whirlwind R-975 420hp Radial 9 / Air
Model A75L5 Conversions
1 / Lycoming O-435 190hp Opposed 6 / Air

Brewster F2A Buffalo

F2A & export Buffalo Production
1 / Wright Cyclone GR/R-1820 950hp - 1200hp Radial 9 / Air

Consolidated B-24 Liberator

B-24, AT-22, C-87, PB4Y, RY, R2Y Production
XB-24B, XB-24K Conversions
4 / Pratt & Whitney Twin Wasp R-1830 1200hp - 1350hp Radial 14 / Air

Consolidated B-32 Dominator

B-32 Production
4 / Wright Cyclone R-3350 2200hp Radial 18 / Air / T.S.C.

Consolidated PBY Catalina

PBY, PBN, PBV, PB2B, Canso Production
2 / Pratt & Whitney Twin Wasp R-1830 900hp - 1200hp Radial 14 / Air

Consolidated PB2Y Coronado

XPB2Y-1 to PB2Y-3 Production / XPB2Y-3,
PB2Y-3R, XPB2Y-5, PB2Y-5 Conversions
4 / Pratt & Whitney Twin Wasp R-1830 1050hp - 1200hp Radial 14 / Air
XPB2Y-4 Conversion
4 / Wright Cyclone R-2600 1700hp Radial 14 / Air

Curtiss C-46 Commando

CW-20 Production
2 / Wright Cyclone R-2600 1700hp Radial 14 / Air
C-46 Production / XC-46B Conversion
2 / Pratt & Whitney Double Wasp R-2800 2000hp - 2100hp Radial 18 / Air
XC-46L Conversion
2 / Wright Cyclone R-3350 2500hp Radial 18 / Air

Curtiss P-40 Warhawk

P-40 to P-40N Production / XP-40Q, P-40R Conversions
1 / Allison V-1710 1160hp - 1425hp V-12 / Liquid
P-40F, P-40L Production
1 / Packard Merlin 28, 29, 31 (V-1650) 1300hp V-12 / Liquid
XP-40F Conversion
1 / Rolls Royce Merlin 28 1300hp V-12 / Liquid


An Allison V-1710 mounted on a P-40F (41-14205, originally fitted with a
Packard Merlin), being restored to represent an RNZAF P-40E s/n: NZ2324.
RNZAF Museum, Christchurch, New Zealand, 2002.

Curtiss SB2C Helldiver

SB2C, SBF, SBW, A-25 Production
1 / Wright Cyclone R-2600 1700hp - 2100hp Radial 14 / Air

Douglas A-20 Havoc

Model 7B, DB-7 Production
2 / Pratt & Whitney Twin Wasp R-1830 1100hp - 1200hp Radial 14 / Air
DB-7A/B/C, A-20 Production
2 / Wright Cyclone R-2600 1600hp - 1700hp Radial 14 / Air

Douglas A-26 Invader

A-26 Production
2 / Pratt & Whitney Double Wasp R-2800 2000hp Radial 18 / Air
YB-26K, B-26K Conversions
2 / Pratt & Whitney Double Wasp R-2800 2500hp Radial 18 / Air / W.I.

Douglas DC-1 / DC-2 Military Series

DC-1, DC-2, C-32, C-33, C-34,
C-39, C-42, R2D Production
2 / Wright Cyclone R-1820 690hp - 1200hp Radial 9 / Air
DC-2A Production / DC-1A Conversion
2 / Pratt & Whitney Hornet R-1690 700hp - 720hp Radial 9 / Air
DC-2B Production
2 / Bristol Pegasus VI 690hp Radial 9 / Air
B-18 Production
2 / Wright Cyclone R-1820 930hp - 1000hp Radial 9 / Air
B-23 Production
2 / Wright Cyclone R-2600 1600hp Radial 14 / Air

Douglas DC-3 / C-47 Skytrain

DST, DC-3, DC-3B, C-49, C-50, C-51,
C-52, R4D Production / C-84 Conversion
2 / Wright Cyclone R-1820 1000hp - 1200hp Radial 9 / Air
DST-A, DC-3A, DC-3D, C-41, C-47*, C-48,
C-52, C-53, C-68, C-117, R4D Production
2 / Pratt & Whitney Twin Wasp R-1830 1000hp - 1200hp Radial 14 / Air
* C-47B with high-altitude S.C.
Super DC-3, YC-129, R4D-8X Conversions
2 / Wright Cyclone R-1820 1475hp - 1535hp Radial 9 / Air
2 / Pratt & Whitney Twin Wasp R-2000 1450hp Radial 14 / Air

Douglas DC-4 / C-54 Skymaster

DC-4 (DC-4E) Production
4 / Pratt & Whitney Twin Hornet R-2180 1400hp Radial 14 / Air
C-54, DC-4 Production
4 / Pratt & Whitney Twin Wasp R-2000 1350hp - 1450hp Radial 14 / Air
XC-54K Conversion
4 / Wright Cyclone R-1820 1425hp Radial 9 / Air
XC-114, XC-116 Production
4 / Allison V-1710 1620hp V-12 / Liquid
Canadair North Star, Argonaut Production
4 / Rolls Royce Merlin 620, 622, 624, 626 1725hp - 1760hp V-12 / Liquid
Canadair Model CL-5 Production
4 / Pratt & Whitney Twin Wasp R-2800 2100hp Radial 18 / Air

Douglas SBD Dauntless

SBD, A-24 Production / XSBD-6 Conversion
1 / Wright Cyclone R-1820 1000hp - 1350hp Radial 9 / Air

Fairchild PT-19 / PT-23 / PT-26 Cornell

Model M-62 Production
1 / Ranger L-410 (6-410) 165hp In-line 6 / Air
Model M-62, M-62A, PT-19, PT-26 Production
1 / Ranger L-440 (6-440) 175hp - 200hp In-line 6 / Air
Model M-62B Production
1 / Warner Super Scarab R-500 165hp Radial 7 / Air
PT-23 Production / XPT-23 Conversion
1 / Continental R-670 220hp Radial 7 / Air
Cornell Mk. III Conversion
1 / Lycoming R-680 220hp Radial 9 / Air

Grumman F4F Wildcat

F4F, FM-1, Martlet Production / XF4F-3 Conversion
1 / Pratt & Whitney Twin Wasp R-1830 1050hp - 1200hp Radial 14 / Air
XF4F-5, XF4F-8, FM-2, Martlet Production
1 / Wright Cyclone R-1820 1200hp - 1350hp Radial 9 / Air

Grumman F6F Hellcat

F6F Production* / XF6F-2, -4, -6 Conversions
1 / Pratt & Whitney Double Wasp R-2800 2000hp - 2200hp Radial 18 / Air
* XF6F-1 initially with a Wright Cyclone R-2600 / 1700hp.

Grumman JF / J2F Duck

XJF-1 Production
1 / Pratt & Whitney Twin Wasp Junior R-1535 700hp Radial 14 / Air
JF-1 Production
1 / Pratt & Whitney Twin Wasp R-1830 700hp Radial 14 / Air
JF-2, JF-3, J2F-1 to J2F-6, XJL-1 Production
1 / Wright Cyclone R-1820 750hp - 1350hp Radial 9 / Air

Grumman JRF Goose / J4F Widgeon

Model G-21, XJ3F, JRF, OA-9 Production
2 / Pratt & Whitney Wasp Junior R-985 450hp Radial 9 / Air
Model G-44, J4F Production
2 / Ranger L-440 (6-440) 200hp In-line 6 / Air
SCAN Type 30 Production
2 / Mathis 8G40 190hp In-line 8 / Air
2 / Salmson 8AS-00 240hp V-8 / Liquid

Grumman TBF / TBM Avenger

TBF, TBM Production / XTBF-2, -3,
XTBM-2, -3 Conversions
1 / Wright Cyclone R-2600 1700hp - 1900hp Radial 14 / Air

Lockheed Hudson / Lodestar / Ventura Series

Hudson series, A-28,
Lodestar series Production
2 / Pratt & Whitney Twin Wasp R-1830 1050hp - 1200hp Radial 14 / Air
Super Electra series, Hudson series, A-29,
AT-18, Lodestar series, B-34 Production
2 / Wright Cyclone R-1820 900hp - 2000hp Radial 9 / Air
Super Electra series, Lodestar series Production
2 / Pratt & Whitney Hornet R-1690 750hp - 875hp Radial 9 / Air
Ventura series, PV Production
2 / Pratt & Whitney Double Wasp R-2800 1850hp - 2000hp Radial 18 / Air
B-37 Production
2 / Wright Cyclone R-2600 2000hp Radial 14 / Air

Lockheed C-69 / C-121 Constellation

L-049, L-1049, L-1649, C-69,
C-121, PO, R7V, WV Production
4 / Wright Cyclone R-3350 2200hp - 3400hp Radial 18 / Air / T.C.
XC-69E Conversion
4 / Pratt & Whitney Double Wasp R-2800 2000hp Radial 18 / Air

Lockheed P-38 Lightning

P-38, F-4, F-5 Production / XP-38K Conversion
2 / Allison V-1710 1150hp - 1425hp V-12 / Liquid
XP-49 Production
2 / Continental XIV-1430 1350hp (inverted) IV-12 / Liquid
XP-58 Production
2 / Allison V-3420 2600hp V-24 / Liquid

Martin B-26 Marauder

B-26, AT-23 Production
2 / Pratt & Whitney Double Wasp R-2800 1850hp - 2000hp Radial 18 / Air

Martin PBM Mariner / P5M Marlin

PBM-1 to PBM-3 Production
2 / Wright Cyclone R-2600 1600hp - 1900hp Radial 14 / Air
PBM-5 Production
2 / Pratt & Whitney Double Wasp R-2800 2100hp Radial 18 / Air
P5M Production
2 / Wright Cyclone R-3350 3400hp - 3450hp Radial 18 / Air / W.I.

North American AT-6 Texan

NA-16, BT-9 Production
1 / Wright J6-9 Whirlwind R-975 400hp Radial 9 / Air
BT-14 Production
1 / Pratt & Whitney Wasp Junior R-985 450hp Radial 9 / Air
NA-26, NA-44, NJ, BC-1, AT-6, SNJ, AT-16,
Harvard, Wirraway Production / BT-10 Conversion
1 / Pratt & Whitney Wasp R-1340 500hp - 600hp Radial 9 / Air
XAT-6E Conversion
1 / Ranger SGV770B-3 R-770 575hp V-12 / Liquid
XSN2J-1 Production
1 / Wright Cyclone R-1820 1100hp Radial 9 / Air


The 9 cylinder radial Pratt & Whitney Wasp R-1340 on a Harvard Mk. III.
Warbirds Over Wanaka, New Zealand, 2012.

North American B-25 Mitchell

NA-40 Production
2 / Pratt & Whitney Twin Wasp R-1830 1100hp Radial 14 / Air
B-25 Production / NA-40B Conversion*
2 / Wright Cyclone R-2600 1700hp / 1350hp* Radial 14 / Air

North American P-51 Mustang / P-82 Twin Mustang

NA-73, P-51 to P-51A Production
1 / Allison V-1710 1150hp - 1325hp V-12 / Liquid
P-51B to P-51M Production / XP-51B Conversion
1 / Packard Merlin 68, 69 (V-1650) 1380hp - 1490hp V-12 / Liquid
XP-51G Production
1 / Rolls Royce Merlin 45M 1675hp V-12 / Liquid
XP-51J Production
1 / Allison V-1710 1500hp V-12 / Liquid
P-51D Australia Production
1 / Rolls Royce Merlin 66, 70 1375hp - 1400hp V-12 / Liquid
1 / Packard Merlin 61 (V-1650) 1450hp - 1590hp V-12 / Liquid
XP-82, P-82B, P-82F Production
2 / Packard Merlin 68 (V-1650) 1860hp V-12 / Liquid
XP-82A, P-82E, P-82G Production
2 / Allison V-1710 1900hp V-12 / Liquid

Northrop P-61 Black Widow

P-61, F-15 Production / XP-61D Conversion*
2 / Pratt & Whitney Double Wasp R-2800 2000hp - 2100hp Radial 18 / Air
* with T.S.C.

Republic P-47 Thunderbolt

P-47 Production / XP-47E, YP-47M, XP-47N Conversions
1 / Pratt & Whitney Double Wasp R-2800 2000hp - 2800hp Radial 18 / Air / T.S.C.
XP-47H Conversion
1 / Chrysler XIV-2220 2300hp (inverted) V-16 / Liquid

Stinson L-5 Sentinel

Model V-75 Production
1 / Lycoming ? 100hp Opposed 4 / Air
1 / Franklin ? 125hp Opposed 4 / Air
Model V-76, L-5 Production
1 / Lycoming O-435 175hp - 190hp Opposed 6 / Air

Vought F4U Corsair

F4U, AU, F3A, FG Production
XF4U-3, -3B, -4, -5, XF2G-1 Conversions
1 / Pratt & Whitney Double Wasp R-2800 1800hp - 2450hp Radial 18 / Air / T.S.C. or W.I.
F2G Production
1 / Pratt & Whitney Wasp Major R-4360 3000hp Radial 28 / Air / T.S.C.

Vultee BT-13 / BT-15 Valiant

BC-3, Model V-54 Production
1 / Pratt & Whitney Wasp R-1340 600hp Radial 9 / Air
Model V-54A, BT-13 Production
1 / Pratt & Whitney Wasp Junior R-985 450hp Radial 9 / Air
BT-15 Production
1 / Wright Whirlwind R-975 450hp Radial 9 / Air

TURBOPROP ENGINES

1st Column Number of engines / manufacturer.
2nd Column Engine name / engine designation + (civil designation).
3rd Column Maximum power output range across aircraft production run.
4th Column Engine type.

Boeing C-97 Stratofreighter

YC-97J, Model 377-SG Super Guppy Conversions
4 / Pratt & Whitney T34-P 5700shp 3-bladed Turboprop
Model 101 / 201 Guppy Conversions
4 / Allison T56-A (501-D) 4912shp 4-bladed Turboprop

Curtiss C-46 Commando

XC-113 Conversion*
1 / General Electric T31-GE 2300shp 4-bladed Turboprop
* port engine remained as R-2800.

Lockheed C-69 / C-121 Constellation

R7V-2 (YC-121F) Production
4 / Pratt & Whitney T34-P 6000shp 3-bladed Turboprop

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