Indian Startup Othisis Test-Fires 3D-Printed Methalox Engine for Reusable Rocket Programme
The engine delivered a reported 5 kN of thrust and a total impulse of 100 kN·s during the successful test. Othisis says it designed and built the propulsion system for its reusable launch-vehicle programme and plans to place the engine aboard a vehicle demonstrator later in 2026. The achievement remains a ground-based hot-fire test rather than a flight demonstration, but it moves the startup closer to testing reusable rocket operations.