Ursa Major has announced it has "hot fire" tested Draper -- its developmental liquid hypersonic engine -- over 50 times since March, meeting the project's 12-month timeline through a contract with the Air Force Research Lab, noting new interest from a U.S. combatant command and a program executive office. Draper is a “4,000-pound-thrust closed catalyst cycle engine” that uses “a non-cryogenic fuel that optimizes storability, making the engine uniquely suited for in-space applications,” Ursa Major said today. The liquid engine...
