Landing gear systems landing-gear system offering

The Landing gear systems is a landing-gear system from Liebherr-Aerospace with aerospace-grade and dual-use specifications. Landing gear systems from Liebherr-Aerospace are complete systems for landing, braking and steering of aircraft on the ground, developed and manufactured by Liebherr-Aerospace in Lindenberg, Germany. Liebherr designs, manufactures and services the landing gear structure together with extension and retraction actuation, steering actuation, position and warning systems, wheels, brakes, sensors and cockpit controls.

The offer is organised in several areas. Structural parts cover the main fittings, sliding tubes, side stays, locking stays, wheel axles and drag braces. Liebherr's engineering work on these parts includes layout, design, performance analysis, stress and fatigue calculations, and safety and reliability assessments. Retraction and extension systems, landing gear subsystems and thrust reverser actuation systems complete the range. For an integrator, taking structure, actuation and control from one supplier simplifies the interface definition between the gear and the airframe, hydraulics and flight control computers.

Liebherr states that its manufacturing uses machining and surface treatment technologies for precision and durability, and that weight-optimised structures are made with advanced materials and production processes. Further integration services, such as complete dressings of the gear, are available. Test and support facilities are operated for the development and integration of landing gear systems, subsystems and components, and support continues through the life cycle of the aircraft.

Liebherr has a nose landing gear actuation system based on an electro-hydrostatic principle, intended for aircraft with more electric architectures. This is relevant to electric and hybrid-electric platforms, where hydraulic power from the engines is not available and actuation has to be driven by electrical power. The company also says that its landing-gear know-how is applicable to unmanned vehicles.

The systems are integrated into commercial aircraft, business jets, helicopters and defence platforms. Reference programs shown by Liebherr include the Leonardo AW139 medium twin-engine helicopter and the Airbus A220-100 and A220-300 aircraft. Typical applications are therefore the gear of transport aircraft, rotorcraft and military aircraft, and, through the electro-hydrostatic actuation and unmanned-vehicle statements, larger electrically powered and unmanned platforms.