The concept of using retro-rockets for landing was scrapped in 2017 when it was decided to perform a traditional parachute descent and splashdown at sea.[14] Raptor is a new family of methane-fueled full-flow staged combustion cycle engines to be used in its future Starship launch system.[15] Development versions were test-fired in late 2016.[16] On 3 April 2019, SpaceX conducted a successful static fire test in Texas on its Starhopper vehicle, which ignited the engine while the vehicle remained tethered to the ground.[17] On 25 July 2019, SpaceX conducted a successful test hop of 20 meters of its Starhopper.[18] On 28 August 2019, Starhopper conducted a successful test hop of 150 meters.[19]