Retractable Landing Gear

Retractable landing gear refers to a type of landing gear system used in aircraft. It is a component of the aircraft landing gear system, which falls under the supply class "Aircraft Landing Gear Components" in the supply group "Aerospace Craft Components And Accessories."

Retractable landing gear is designed to be retractable, meaning it can be extended or retracted during different phases of flight. During takeoff and landing, the landing gear is extended to provide support and stability to the aircraft. However, during cruising or high-speed flight, the landing gear is retracted into the aircraft's fuselage or wings to reduce drag and improve aerodynamic efficiency.

The retractable landing gear system typically consists of hydraulic or electric actuators, gear doors, struts, wheels, and brakes. The actuators are responsible for extending and retracting the landing gear, while the gear doors cover and protect the landing gear when it is retracted. The struts provide support and shock absorption during landing, and the wheels and brakes allow for safe ground operations.

Retractable landing gear is commonly used in various types of aircraft, including commercial airliners, military aircraft, and private jets. Its ability to retract into the aircraft's structure helps improve fuel efficiency, reduce noise, and enhance overall performance during flight.