3 ms·
Well, the SR-71 could go over Mach 3 at 85,000 ft. If you could have somehow pushed it to that speed at sea level, you would have had even worse heat problems.
by reubenswartz 10y ago
Well, the SR-71 could go over Mach 3 at 85,000 ft. If you could have somehow pushed it to that speed at sea level, you would have had even worse heat problems.