EnginesWright R-1820-40B CycloneWright R-1820-40B CycloneWright R-1820-40B CycloneLayoutRadialCoolingAirFuelPetrolDisplacement29.88 LAircraft 1193119321933193419351936193719381939194019411942194319441945Martlet IV220≈ Feb 1943 – Aug 1943