来自MSN5 天
World's fastest plane could have gone from London to New York in under an hour
The X-15 hypersonic research program was a joint venture between Nasa and the US Air Force - and it led to the creation of ...
World's fastest plane could have reached New York from London in 45 minutes
For nearly a decade, the X-15 - the fastest flying manned aircraft ever made - completed 199 missions at record breaking ...