| (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 |
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