aviation stories

 
The X-51A Waverider blasted itself into the longest hypersonic flight in history yesterday, streaking across the sky at Mach 5 for just over 200 seconds. That's 10 times longer than the previous record, set in 2004 by NASA's X-43. While the X-51A has already flown a couple of times while remaining attached to its mother ship, this was the first time the unmanned plane flew independently.