Landing strut
Landing strut or landing gear was a component of some spacecraft which were capable of entering a planet's atmosphere and landing on the surface. Before the introduction of spacecraft, landing gear was used for aircraft. Normally inside the ship, the landing struts were exposed by moving panels when needed. The landing gear served to steady and support the starship upon landing. It was possible for a starship's landing gear to become stuck on a planet's surface. ()

The lunar module of the Apollo spacecraft was equipped with landing gear. ()

"Chapter 18: Bride of Chaotica", from The Adventures of Captain Proton, started with the crash landing of Captain Protons rocket ship after the landing gear jammed. ()

Klingon Birds-of-Prey were equipped with landing struts, and the Bird-of-Prey rechristened as the  by the senior staff of the late  used its two struts to land on  in the mid 2280s. (; ) 

Starfleet's  was equipped with landing struts, and the  used these several times while stranded in the Delta Quadrant in the 2370s. These occasions included an attempt to investigate the origin of an SOS on a planet with a turbulent atmosphere that would prevent shuttles and transporters arriving safely, when the Kazon temporarily stole the ship and abandoned the crew on a barren planet, when attempting to mine fuel supplies with limited power reserves available, to escape an attack by entering the hostile atmosphere of an abandoned world, and when performing vital maintenance on the ship's warp core. ()

Starfleet's  was also equipped with a single, large landing strut located beneath the ship's center of gravity. It was wide and sturdy enough to withstand skidding across surfaces. ()

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de:Landestütze
Transportation technology
Spacecraft components