Extension / Retraction

The extension and retraction subsystem allows to retract and lock the landing gear once the aircraft is in the air and to lower it when the aircraft is about to land.

Liebherr designs and manufactures in-house the structural, hydraulic and mechanical parts of the extension and retraction subsystem (actuators, manifolds, reservoirs, valves, uplock boxes) and integrates them together with the electronic hardware and software controls made in-house.

Liebherr extension and retraction subsystems are supplied to all kinds of platforms like commercial aircraft, regional aircraft, business jets, fighters and helicopters.

Extension retraction system test rig