Sierra Passes Vortex Rocket Test Milestone

Credit: Sierra Space
COLORADO SPRINGS—Sierra Space has completed a hot-fire test campaign of a new version of its Vortex hypergolic in-space rocket propulsion family. The low-cost, additively manufactured VRM1500-H is rated at 1,500 lb. thrust and targeted at spacecraft orbital maneuvering and extraterrestrial landers...
Guy Norris

Guy is a Senior Editor for Aviation Week, covering technology and propulsion. He is based in Colorado Springs.

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