Dobrynin M-250, VD-3TK, and VD-4K Aircraft Engines

In early 1939, Soviet authorities sought the design and development of a new aircraft engine rated in excess of 2,000 hp (1,491 kW).…

Delage 12 GVis and 12 CDirs Aircraft Engines

Louis Delâge was born in Cognac, France on 22 March 1874. He received an engineering degree in 1893 and started a career in…

Deissner ‘Paradox’ Rotary Aircraft Engine

Charles (Carl) Deissner stands next to the 30 hp (22 kW) Paradox engine during a test run. The frame around the engine enabled…

Daimler-Mercedes D VI W-18 Aircraft Engine

By 1915, the Germans had begun to experiment with very large aircraft known as Riesenflugzeug (giant aircraft). These aircraft had been developed from the…

Daimler-Benz DB 606, DB 610, and DB 613 Doppelmotoren

In 1936, Siegfried and Walter Günter began design work on the Heinkel He 119, an experimental, unarmed, high-speed light bomber and reconnaissance aircraft. The…

Daimler-Benz DB 604 X-24 Aircraft Engine

In July 1939, the RLM (Reichsluftfahrtministerium, or Germany Air Ministry) issued specifications for a new medium bomber capable of high-speeds. Originally known as Kampfflugzeug…

Bristol Hydra 16-Cylinder Radial Aircraft Engine

In 1930, the Bristol Aeroplane Company began to contemplate the future of aircraft engines. Their engine department was run by Roy Fedden, a…

Bréguet-Bugatti 32A and 32B Quadimoteurs

During World War I, Ettore Bugatti designed and built a U-16 aircraft engine. The engine consisted of two inline eight-cylinder sections mounted side-by-side…

Beardmore Tornado Diesel Airship Engine

In the early 1920s, William Beardmore & Company Ltd. began to design a series of high-power, low speed, direct-drive aircraft engines. From this line…

Arsenal 24H and 24H Tandem Aircraft Engines

In occupied France during World War II, the state-run manufacturer Arsenal de l’Aéronautique (Arsenal) was tasked with building the German Junkers Jumo 213 engine.…