XB-70 Valkyrie
- Episode aired May 30, 2012
- TV-G
- 44m
Ahead of its time - the XB-70 Valkyrie could travel at three times the speed of sound. Over more than a half century after its first flight, the XB-70 is still one of aviation's most interes... Read allAhead of its time - the XB-70 Valkyrie could travel at three times the speed of sound. Over more than a half century after its first flight, the XB-70 is still one of aviation's most interesting achievements.Ahead of its time - the XB-70 Valkyrie could travel at three times the speed of sound. Over more than a half century after its first flight, the XB-70 is still one of aviation's most interesting achievements.