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by madaxe_again 4196 days ago
Sure. The X-51. http://en.wikipedia.org/wiki/Boeing_X-51
1 comments
imaginenore 4195 days ago
You might as well have linked to an ICBM page.

X-51 is unmanned, and hasn't flown at mach 5 for longer than 4 minutes.

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madaxe_again 4195 days ago
It is however a winged craft with an air breathing engine, commonly known as "a plane".
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