The World's 1st Hypersonic Hydrogen Jet: What We Know So Far

Hypersonix Launch Systems, an Australian start-up in Brisbane, is developing uncrewed hypersonic demonstrators powered by hydrogen-fueled Spartan scramjet engines. Its current portfolio includes DART, VISR and Delta Velos, and the company says it is working with allied militaries and NASA to progress uncrewed vehicles, while also aiming for commercial passenger hypersonic travel eventually. The article also points to other programs, including Lockheed Martin’s rumored SR-72 successor to the Blackbird, plus efforts such as Destinus Aerospace, Hyperion Aerospace’s HYPERLiner and the European Space Agency’s Invictus. It sets the context with earlier supersonic efforts like the Tu-144 and Concorde, and notes Boom Supersonic’s Overture expected to cruise at Mach 1.7.