EntityQ1123886· pop 20· linked from 475 articlesDolphinSign in to save1930 multi-role flying boat family by DouglasConnectionsR-1340 WaspEntityWasp JuniorEntityUnited States NavyEntityUnited States Marine CorpsEntityUnited States Coast GuardEntityWilliam BoeingEntitySanta Catalina IslandEntityRoyal Australian Air ForceEntityUnited States Army Air CorpsEntityGrumman G-21 GooseEntityR-975 WhirlwindEntityUnited StatesCountryAustraliaCountryArgentinaCountryLos AngelesEntityFranklin D. RooseveltPersonInternational Standard Book NumberEntityGreat DepressionEntityWayback MachineEntityBoeingEntityCategories1930s United States civil utility aircraft1930s United States military transport aircraftAircraft first flown in 1930Amphibious aircraftDouglas aircraftFlying boatsHigh-wing aircraftTwin piston-engined tractor aircraft