EnginesWright R-1820-97 CycloneWright R-1820-97 CycloneWright R-1820-97 CycloneLayoutRadialCoolingAirFuelPetrolDisplacement29.88 LAircraft 2193119321933193419351936193719381939194019411942194319441945B-17G8,595≈ Sep 1943 – 25 Apr 1945Fortress III85≈ Feb 1944 – May 1945