[Reily]

I doubt any plane traveling at 4,602 mph could be manned.
In fact if the CONOPS calls for that kind of speed it would be foolish to man.

[TalonDJ]

“I doubt any plane traveling at 4,602 mph could be manned.”

The space shuttle was.

The faster you go the higher you go. Anything going that fast would be WAY up where the air is almost not there.

[marktwain]

I doubt any plane traveling at 4,602 mph could be manned.

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Why? The space shuttle traveled at over 17,000 mph.

[kjam22]

LAX to JFK in an hour. Be people standing in line to ride it.