Combining a turbine engine with a ramjet in the same vehicle has been a dream for the aerospace industry since the early 1950s, when the US Air Force proposed adapting Republic’s concept for the ...

The startup Hermeus is rapidly developing a hypersonic plane. They have begun testing their proprietary precooler technology with the Pratt & Whitney F100 engine. This video highlights some of our ...

It might also serve as the initial stage on two-stage spaceplanes that take off like conventional airplanes but reach space on their own. The last time the U.S. was involved in developing a high-speed ...

A jet engine is any engine that can propel an aircraft of some kind via rearward expulsion of a jet of fluid, typically a hot exhaust gas that the engine generates by drawing in fuel from the ...

Pratt & Whitney Rocketdyne has tested a dual-mode ramjet/scramjet combustor at Mach numbers from 2.5 to 6.0, possibly the widest range yet demonstrated for this high-speed propulsion system. "This is ...