EntityQ890178· pop 28· linked from 435 articlesBoeing 307Sign in to saveUS airliner with 4 piston engines, 1938ConnectionsSeattleEntityPan AmEntityDouglas C-47EntityUnited States Army Air ForcesEntityTrans World AirlinesEntityDouglas C-54 SkymasterEntityflapEntityPrestwickEntityR-1820Entityanti-aircraft warfareEntityCivil Aeronautics BoardEntityHaitian Aviation CorpsEntityRenard R.35EntityUnited StatesCountryFranceCountryBrazilCountryVietnamCountryFrenchEntitySouth AmericaEntityCambodiaCountryCategories1930s United States airlinersAircraft first flown in 1938Aircraft specs templates using more performance parameterAircraft with retractable conventional landing gearBoeing aircraftBoeing B-17 Flying FortressFour-engined piston aircraftFour-engined tractor aircraftLow-wing aircraft