CommercialSeaplanes & flying boatsDornier Do J Wal1922 multi-role flying boat family by Dornier1922230 km/h2,199 km
CommercialSeaplanes & flying boatsDornier Do R Superwal1926 airliner flying boat family by Dornier1926
CommercialSeaplanes & flying boatsDornier Do X1929 airliner flying boat model by Dornier1929215 km/h2,199 km
CommercialSeaplanes & flying boatsDouglas Aircraft Dolphin1930 multi-role flying boat family by Douglas1930
CommercialCivil helicoptersDoman LZ-51953 utility helicopter prototype model by Doman Helicopters1953
CommercialLight & general aviationDoyle O-2 OrioleAmerican parasol-wing airplane first flown in 19281928