Landing struts were the support systems on starships that are used in planetary landings. Normally inside the ship, the landing struts are exposed by moving panels when needed.

Klingon Birds-of-Prey were equipped with landing struts, and the Bird-of-Prey rechristened as the HMS Bounty by the senior staff of the late USS Enterprise used its two struts to land on Vulcan in the mid 2280s. (Star Trek III: The Search for Spock; Star Trek IV: The Voyage Home)

Starfleet's Intrepid-class was equipped with landing struts, and the USS Voyager used these several times while stranded in the Delta Quadrant in the 2370s. (VOY: "The 37's", "Basics, Part I", "Dragon's Teeth", "Demon", "Nightingale")