Getting to the battle fast!
The US Air Force Research Laboratory with Boeing designed the tested the X-51A WaveRider hypersonic demonstrator on its first test flight on May 25, 2010. The X-51A is powered by a Pratt & Whitney Rocketdyne hydrocarbon-fuelled scramjet.
“The Pentagon said it spent about $2 billion on technology and engineering around hypersonic flight over the last decade, the Times reports. This program is estimated to cost $140 million, according to Globalsecurity.org, a military policy research website.” Source: yahoo.com
>An X-51A Waverider flight-test vehicle successfully made the longest supersonic combustion ramjet-powered hypersonic flight May 26 off the southern California Pacific coast. The more than 200 second burn by the X-51′s Pratt & Whitney Rocketdyne-built air breathing scramjet engine accelerated the vehicle to Mach 6. The previous longest scramjet burn in a flight test was 12 seconds in a NASA X-43. Air Force officials called the test, the first of four planned, an unqualified success. The flight is considered the first use of a practical hydrocarbon fueled scramjet in flight. Source: globalsecurity.org
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