Stoke Space successfully hotfired its first-stage rocket engine on a new vertical test stand in Moses Lake, Washington.The test is significant as it is the first hotfire of the company's Block 2 stage 1 engine using full-flow staged combustion (FFSC) architecture.Stoke Space and SpaceX are the only two entities that have successfully developed FFSC engines.Stoke Space aims to build fully reusable rockets and space vehicles for frequent operations similar to aircraft.