EntityQ1867857· pop 8· linked from 129 articlesOLSign in to save1923 reconnaissance floatplane family by LoeningConnectionsGrumman J2F DuckEntityKeystone AircraftEntityLoening Aeronautical Engineering CorporationEntityUnited StatesCountryInternational Standard Book NumberEntitygasolineEntityBoeingEntityColumbia UniversityEntitybenzeneEntityDaytonEntityUnited States Air ForceEntityUnited States NavyEntityduraluminEntityUnited States Coast GuardEntityDouglasEntityCessnaEntityConsolidated PBY CatalinaEntityde Havilland Canada DHC-8EntityUnited States Army Air ForcesEntityGrummanEntityCategories1920s United States military reconnaissance aircraftAircraft first flown in 1923Aircraft with retractable conventional landing gearAmphibious aircraftBiplanesFloatplanesLoening aircraftSingle-engined piston aircraftSingle-engined tractor aircraft