Aircraft undercarriage

aircraft part which permits takeoff and landing and supports the aircraft while not in the air

aircraft undercarriage arrangement with main gear forward plus tail support

An autobrake is a type of automatic wheel-based hydraulic brake system for advanced airplanes. The autobrake is normally enabled during takeoff and landing procedures, when the aircraft's longitudinal deceleration system can be handled by the automated systems of the aircraft itself in order to keep the pilot free to perform other tasks.