The the different parts of an aircraft or a spacecraft that support the body weight of art and its particular load and present it mobility on surface or liquid.
the tires, tyres, brake system, surprise absorbers etc of an aircraft; its undercarriage
The rims and attached structures under an airplane that assistance it and allow it to maneuver whenever on a lawn; in addition, the floats or pontoons of an amphibious aircraft with their particular encouraging frameworks. Landing gear could be fixed rigidly set up, or retractable when in flight.
an undercarriage that supports the extra weight regarding the jet if it is on the ground