10-14-2012, 12:04 PM
0
Pretty sure that's only been done once before.
If he does it right he will be able to exceed mach 1 at the right air density and become only the second person to do that without the aid of an aircraft.
If he does it right he will be able to exceed mach 1 at the right air density and become only the second person to do that without the aid of an aircraft.