But the deeper you look into the physics, the engines and the heat involved, the clearer it becomes that hypersonics solve ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The first hypersonic X-51scramjet powered long-duration flights to give the Pentagon a new ...

An experimental aircraft has set a new record for thelongest hypersonic flight after streaking across the sky Wednesday for morethan three minutes while flying at Mach 5 ? five times the speed of ...

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.

The Boeing X-51 WAverider will be undergoing testflights at the end of 2009 and into 2010 The tests are to try and fly hypersonic for 5 minutes instead of previous tests that lasted for a few seconds ...