Few legends of aviation history enthrall like the story of the SR-91 Aurora, an alleged hypersonic plane said to have achieved speeds of over Mach 5. The story of the Aurora has become inextricably ...

The SR-91 Aurora, a reported successor to the SR-71 Blackbird spy aircraft, is conjecture with little proof of its existence. Though there was a rumor based on a budget code name and one supposed ...

Hermeus on May 27 said its Quarterhorse Mk 1 unmanned aircraft successfully flew for the first time, a key milestone on the startup’s path to developing high-Mach and hypersonic aircraft. The May 21 ...

The race to bring hypersonic flight into the real world just took a leap forward with Venus Aerospace's successful test of a revolutionary engine. The Houston-based startup has developed a compact ...