(subclass Airplane Aircraft) | Transportation.kif 2582-2582 | Airplane is a subclass of aircraft |
(subclass Airplane PoweredVehicle) | Transportation.kif 2583-2583 | Airplane is a subclass of powered vehicle |
(subclass PropellerPlane Airplane) | Transportation.kif 2589-2589 | Propeller plane is a subclass of airplane |
(subclass JetAirplane Airplane) | Transportation.kif 2590-2590 | Jet airplane is a subclass of airplane |
(subclass PropellerJet Airplane) | Transportation.kif 2591-2591 | Propeller jet is a subclass of airplane |
(subclass VSTOL Airplane) | MilitaryDevices.kif 1708-1708 | VSTOL is a subclass of airplane |