The Douglas X-3 Stiletto fell short of Mach 2 but revealed roll coupling risks and advanced titanium use in early supersonic ...

Two aviation companies in Greensboro, N.C., are developing new aircraft designs that aim to double flight speeds and halve ...

A US aerospace startup has successfully flown the latest prototype of its high-speed remotely ...

Hermeus says it flew Quarterhorse Mk 2.1 at Spaceport America, launching a flight-test campaign aimed at reaching supersonic ...

COLORADO SPRINGS—Atlanta-based aircraft developer Hermeus has successfully completed the first flight of its Pratt & Whitney ...

Hermeus, a venture-backed defense aviation company, today announced it successfully flew its latest Quarterhorse aircraft, ...

US start-up Hermeus has flown its first supersonic-capable aircraft, the Quarterhorse Mk 2.1, marking a significant step ...

Aerospace startup Hermeus has taken another step toward challenging the Lockheed SR-71 Blackbird’s legendary supersonic speed ...

For the second time in just over nine months, an Atlanta-based company this week debuted a new supersonic test aircraft.

Hermeus successfully flew its latest Quarterhorse aircraft, marking the company’s second first flight in less than a year.

Passengers are one step closer to flying supersonic for the first time since Concorde’s retirement after Nasa took its “sonic thump” plane for its first test flight. The X-59 took off on its maiden ...