Landningsställ

Landningsställ refers to the undercarriage of an aircraft, which allows it to land and take off. It typically consists of a set of wheels, skids, or floats that absorb the shock of landing and provide directional control on the ground. The design of the landing gear is crucial for the aircraft's stability, maneuverability, and safety during ground operations.

Most modern aircraft are equipped with wheeled landing gear, often featuring multiple wheels on each leg to distribute the aircraft's weight. These wheels are usually fitted with brakes to slow down the aircraft after landing and during taxiing. Retractable landing gear is common on larger aircraft, allowing the wheels to be stowed away into the aircraft's structure during flight to reduce aerodynamic drag. Fixed landing gear, on the other hand, remains extended and is typically found on smaller or slower aircraft where the drag penalty is less significant.

Some aircraft, particularly seaplanes or amphibious aircraft, use floats or a combination of wheels and floats as their landing gear. Skids are sometimes employed on aircraft designed for operation on snow or ice. The maintenance and inspection of the landing gear are vital aspects of aviation safety, as any malfunction can have severe consequences. The complexity and design of landing gear vary significantly depending on the type, size, and intended operational environment of the aircraft.