Air Force-funded Ursa Major successfully tests ‘Draper’ engine built to power spacecraft of the future – The Debrief

Draper Ursa major Test Fire

Colorado-based aerospace and defense contractor Ursa Major has announced the first successful “hot fire” test of its Draper liquid-fuel engine. Funded by the Air Force Research Labs (AFRL), Ursa Major debuted the 4,000-lb thrust closed-cycle engine in May 2023, with the ultimate goal of having a fully operational engine capable of operating in the atmosphere … Read more