Editing Reusable launch vehicle (section)

==== Specific component reuse ====
The historic [[Space Shuttle]] reused its [[Space Shuttle Solid Rocket Booster|Solid Rocket Boosters]], its [[RS-25]] engines and the [[Space Shuttle orbiter]] that acted as an orbital insertion stage, but it did not reuse the [[External Tank]] that fed the RS-25 engines. This is an example of a reusable launch system which reuses specific components of rockets. [[United Launch Alliance|ULA’s]] [[Vulcan Centaur]] was originally designed to reuse the first stage engines, while the tank is expended. The engines would splashdown on an inflatable [[aeroshell]], then be recovered. On 23 February 2024, one of the nine Merlin engines a powering a [[Falcon 9 ]] launched for the 22nd time, making it the most reused liquid fuel engine used in an operational manner, having already surpassed [[Space Shuttle Main Engine]] number 2019's record of 19 flights.