Rocket Lab USA, Inc. has successfully test fired a reused Rutherford first stage engine for the first time – a significant technical achievement in the Company's efforts to make its Electron launch vehicle the world's first reusable orbital small rocket. Rocket Lab conducted the full duration, full-thrust test fire of the refurbished Rutherford engine earlier this week at the Company's engine test facility. The engine was previously successfully launched to space and returned to Earth during Rocket Lab's recent recovery mission, ‘There And Back Again', launched on May 2, 2022.

The mission was the first time Rocket Lab attempted a mid-air capture of Electron's first stage, using parachutes on the rocket to slow its descent from space before a helicopter plucked the rocket from the sky as it approached Earth's surface. The Electron stage was ultimately released for a soft ocean splashdown, before it was collected by vessel and returned to Rocket Lab's production complex. The refurbished Rutherford engine passed all of the same rigorous acceptance tests Rocket Lab performs for every engine, including 200 seconds of engine fire and multiple restarts.

Data from the test fire shows the engine produced full thrust of 21kNs within 1000 milliseconds of ignition and performed to the same standard of a newly-built Rutherford engine. This Rutherford engine will now continue as an engine life-leader for future Rutherford development.