EnginesWright R-1820-G105 CycloneWright R-1820-G105 CycloneWright R-1820-G105 CycloneLayoutRadialCoolingAirFuelPetrolDisplacement29.88 LAircraft 3193119321933193419351936193719381939194019411942194319441945Brewster Model 339B40≈ Apr 1941 – May 1941Brewster Model 339C24≈ Dec 1941 – 7 Mar 1942Buffalo Mk I170≈ 8 Dec 1941 – 5 Mar 1942