Key Points and Summary - The X-51 Waverider’s 2013 flight—air-launched from a B-52 and accelerating to Mach 5.1—remains the longest air-breathing hypersonic run on record and a pivot point for U.S.

Testing to clear Pratt & Whitney Rocketdyne’s (PWR) dual-mode ramjet/scramjet engine for flight on the Boeing X-51A WaveRider hypersonic demonstrator in September 2009 is underway in the NASA Langley ...

On its fourth and final flight, the X-51A Waverider made history last week: the longest flight ever for an air-breathing scramjet engine. An Air Force B-52 dropped the unmanned test vehicle from about ...

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 ...

The US Air Force Research Laboratory (AFRL) completed a series of “record-breaking tests” of a scramjet engine in November. The hot-fire tests were conducted on the ground at the Arnold Engineering ...

After decades of false starts, America’s leading scramjet engine developers say scramjet-powered hypersonic flight is now within reach. That’s partly thanks to the coming of new 3D printing technology ...

Will DeVerter, a graduate research assistant in the Purdue Applied Research Institute’s Hypersonics Advanced Manufacturing Technology Center (HAMTC), prepares his team’s 3D printed scramjet for ...