Why did SR-71 pilots wear space suits?
Why did SR-71 pilots wear space suits? 3. Pilots Must Suit Up. SR-71 pilots have more in common with astronauts that you might think. They flew so high (80,000-85,000 ft), pilots had to wear special pressure suits that were actually modified spacesuits.
What is the fastest plane in the world?
The North American X-15 may be the fastest plane in the world, with speeds at 4,520 mph and Mach 5.93. It's an experimental aircraft used and powered by NASA and USAF.