3 ms·
It is like the land speed record. As soon as you get over a couple hundred miles per hour you might as well fly. So when you get to mach 6 you might as well b
by siffland 8y ago
It is like the land speed record. As soon as you get over a couple hundred miles per hour you might as well fly.
So when you get to mach 6 you might as well be in space....
- zik 8y agoAnd when you get to about mach 33 you might as well leave orbit.