The U.S. military launched an experimental hypersonic aircraft on its swan song test flight Wednesday (May 1), accelerating the craft to more than five times the speed of sound in the longest-ever ...

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 ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The Christian Science Church, and we’ve always been transparent about that. The Church publishes the Monitor ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The Christian Science Church, and we’ve always been transparent about that. The Church publishes the Monitor ...

The X-51A WaveRider hypersonic vehicle, powered by Pratt & Whitney Rocketdyne’s scramjet engine, achieved aviation history today by making the longest-ever supersonic combustion ramjet-powered flight.

Boeing X-51A programme officials acknowledge that they face long odds for completing a successful flight-test programme for the hypersonic vehicle with only four experiments funded. Joseph Vogel, ...

Key Points and Summary - Boeing’s X-51A “Waverider” was a hypersonic tech demonstrator built with AFRL, DARPA, and Pratt & Whitney Rocketdyne to validate scramjet flight. -Air-dropped from a B-52, the ...

The X-51A Waverider successfully launched from a B-52 Stratofortress over Point Mugu Naval Air Warfare Center Sea Range, Calif., Aug. 14, 2012, at approximately 11:36 a.m. PDT. The X-51 safely ...

The Air Force Research Laboratory Aerospace Systems Directorate celebrates the 10th anniversary of the X-51A’s longest supersonic combustion ramjet-powered hypersonic flight May 26. The flight, which ...

The U.S. Air Force Research Laboratory (AFRL) plans to fly the fourth and final Boeing X-51A WaveRider hypersonic engine demonstrator in mid-2013. Tests of the component suspected to have caused the ...