Aircraft Engines: World War II

Click to view all Aircraft Engines: World War II articles starting with the most recent.

Allison V-3420-A front Allison V-3420 24-Cylinder Aircraft Engine - The Allison V-3420 24-cylinder engine was more than just two coupled V-1710s. The large engine showed promise, but other priorities and a lack of aircraft applications regulated the V-3420 to obscurity.
Armstrong Siddeley Deerhound III Armstrong Siddeley ‘Dog’ Aircraft Engines - In the 1930s, Armstrong Siddeley started a new line of engines named after dogs (canines). Most of these engines were radials with banks of inline cylinders. The most famous engine of the series was the Deerhound.
Dobrynin VD-4K CPO Saturn Dobrynin M-250, VD-3TK, and VD-4K Aircraft Engines - Through and after WWII, Soviet engineer Vladimir Dobrynin developed a series of 24-cylinder aircraft engines. These inline radial engines had six cylinder banks and produced 2,200 to 4,300 hp (1,640 to 3,207 kW).
Fairey P24 Monarch engine Fairey P.24 Monarch Aircraft Engine - Designed by Richard Forsyth, the P.24 Monarch was Fairey Aviation’s final attempt to enter the aircraft piston engine business. The 24-cylinder Monarch was essentially two engines in a common crankcase.
fiat-a38-rc15-45-v-16-engine FIAT A.38, A.40, and A.44 Aircraft Engines - The last piston aircraft engines designed by FIAT were unique and innovative. However, the V-16, X-24, and X-32 engines never entered production due to WWII and because existing engines proved sufficient.
FKFS Gruppen-Flugmotor A mockup copy FKFS Gruppen-Flugmotor A, C, and D - The FKFS Gruppen-Flugmotor A, C, and D were attempts to create powerful, 48-cylinder aircraft engines for German WWII bombers.
Hispano-Suiza 24Z left Hispano-Suiza 24Z (Type 95) Aircraft Engine - Drawing inspiration from the 24Y engine, Hispano-Suiza developed the 24Z. The jet age made the large, 3,600 hp (2,685 kW) H-24 engine obsolete.
Isotta Fraschini Zeta rear Isotta Fraschini Zeta X-24 Aircraft Engine - The Isotta Fraschini Zeta was an air-cooled, 24-cylinder engine developed in Italy during WWII. Flown only in the Caproni Vizzola F.6Z, cooling issues and Italy’s surrender limited the engine’s development.
Junkers Jumo 223 front Junkers Jumo 223 Aircraft Engine - The Junkers Jumo 223 was a 24-cylinder, diesel, opposed-piston, aircraft engine. The 2,500 hp (1,860 kW) engine was intended to be used in long-range aircraft during WWII.
Junkers Jumo 224 Junkers Jumo 224 Aircraft Engine - Following the Jumo 223, Junkers designed a larger, 24-cylinder, diesel, opposed-piston, aircraft engine that was forecasted to produce 4,400 hp (3,280 kW).
KHD Dz 710 test Klöckner-Humboldt-Deutz (KHD) Dz 700, Dz 710, and Dz 720 - Starting in the late 1930s and continuing through WWII, KHD built a series of two-stroke, diesel aircraft engines. The culmination of this effort was the 5,900 hp (4,400 kW), 32-cylinder KHD 720.
P-51 Voodoo One Second in the Life of a Racer – by Tom Fey - Tom Fey breaks down the inner workings of a race-prepped Merlin engine as it powers a modified P-51 Mustang to 480 mph around the course at the Reno Air Races.
Dreadnought R-4360 One Second on the Course with Dreadnought – by Tom Fey - Tom Fey breaks down the inner workings of the R-4360 engine installed in the Sanders Family’s air racer Dreadnought as it provides race-power on the course at the Reno Air Races.
Reggiane Re 103 left side 1943 Reggiane Re 101 to Re 105 Aircraft Engines - During WWII, the Italian aircraft manufacturer Reggiane designed a few aircraft engines. Only the Re 103 was built. It was an inverted W-18 that produced 1,740 hp (1,298 kW) and displaced 2,435 cu in (39.9 L).
Rolls-Royce Exe (Boreas) and Pennine Aircraft Engines - From the late 1930s to the mid-1940s, Rolls-Royce developed two air-cooled X-24 aircraft engines: the 1,200 hp (895 kW) Exe and the 2,800 hp (2,088 kW) Pennine. Neither engine entered production.
Wright Aeronautical R-4090 Cyclone 22 Aircraft Engine - During WWII, Wright Aeronautical built the 3,000 hp (2,237 kW) twin-row R-4090 using 22 cylinders from the R-3350 engine. The R-4090 was abandoned as all resources were needed on the R-3350.