Klingon Bird-of-Prey landing struts
Intrepid-class landing struts
Landing struts were the support systems on starships that were used in planetary landings. Normally inside the ship, the landing struts were 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. 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. (VOY: "The 37's", "Basics, Part I", "Demon", "Dragon's Teeth", "Nightingale")
