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Ursa Major Begins Proving Out New Liquid Engine For Hypersonic Applications

Cal Biesecker By
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Ursa Major Begins Proving Out New Liquid Engine For Hypersonic Applications
Plume from a Draper engine during a recent hot fire test by Ursa Major. Photo: Ursa Major

Engine developer and manufacturer Ursa Major has hot-fired its new Draper liquid engine dozens of times since the first test in early March, a strong early endorsement of the performance and reliability of the 4,000-pound thrust powerplant that the company touts as well suited for hypersonic defense and target applications, and for in-space propulsion. The 50-plus hot-firings of the first test article at Ursa Major’s headquarters north of Denver in Berthoud, Colo., have occurred under a year-old contract with the…

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