undercarriage
aircraft part which permits takeoff and landing and supports the aircraft while not in the air
conventional landing gear
aircraft undercarriage arrangement with main gear forward plus tail support
tricycle gear
aircraft undercarriage arranged with main gear under the wing or fuselage and a third set under the nose
ground carriage
aircraft undercarriage connected to the ground as opposed to carried by the aircraft
retractable landing gear
aircraft landing gear which can be raised partially or completely within the aircraft body while in flight
landing gear outrigger
aircraft undercarriage with supporting gear at the ends of wings