EntityQ729331· pop 31· linked from 480 articlesBoeing 247Sign in to saveairliner familyConnectionsWestern AirlinesEntityWashington, D.C.EntityUnited AirlinesEntityRoyal Canadian Air ForceEntityR-1340 WaspEntityCanadian Pacific Air LinesEntity1933 United Airlines Boeing 247 mid-air explosionEntityUnited StatesCountryAustraliaCountryCanadaCountryUnited KingdomCountryBrazilCountryColombiaCountryEnglandEntityTaiwanCountryWorld War IIConceptChicagoEntitySan FranciscoEntityOttawaEntityUtahEntityCategories1930s United States airlinersAircraft first flown in 1933Aircraft with retractable conventional landing gearBoeing aircraftLow-wing aircraftTwin piston-engined tractor aircraft