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 ...

A more efficient scramjet that could form the basis of a combined-cycle engine able to power a vehicle from take-off to hypersonic cruise is expected to be flown in Australia by mid-June. The sounding ...

Key Points and Summary - The secretive SR-72 "Darkstar" is Lockheed Martin's ambitious project to build a Mach 6+ hypersonic ISR and strike aircraft. -Its success hinges on a revolutionary and highly ...

Will the supersonic-combustion ramjet ever be a usable means of propulsion? Boeing, Pratt & Whitney Rocketdyne and the US Air Force are convinced it can be Hypersonic windtunnel tests have cleared the ...

Aerojet has completed ground tests of an advanced combined-cycle engine inlet and is looking for an opportunity to flight-test the design, which enables a smooth transition between low-speed turbojet ...