- (uncountable, countable, aviation) The wheels, tyres, brakes, shock absorbers etc of an aircraft; its undercarriage.
- Modern landing gear usually has a tricycle configuration.
1954, “Where Do All the Wheels Go on a B-52?”, in American Aviation, volume 18, page 42:
- Boeing had a problem of too much landing gear
1968, Astronautics & Aeronautics, volume 6, page 4:
- The comparison between the tricycle and tail-skid type of landing gears is a case in point.
- (countable, aviation) Any of the assemblies which support an aircraft when it is on the ground.
- Large modern commercial aircraft have a nose landing gear and two main landing gears.
- (trucking) the bipod stand found near the front end underneath a truck trailer, used to keep the trailer level when not attached to a tractor truck.