Скачать или смотреть Why did SR-71 blackbird pilots have to  spacesuits like astronaut

Why SR-71 Blackbird Pilots Wore Space-Like Suits SR-71 pilots wore full pressure suits, similar to astronaut suits, because they flew at the edge of space, where normal human survival is impossible.



1. The SR-71 flew extremely high The SR-71 cruised at 85,000+ feet (about 26 km).At that altitude:air pressure is extremely low oxygen is almost nonexistent a human would lose consciousness in seconds without protection



2. Normal oxygen masks were not enough
Typical pilot oxygen masks only supply oxygen.They do not provide pressure.At SR-71 altitudes:body fluids could boil (a condition called ebullism) lungs could collapse blood oxygen would drop instantly So pilots needed pressurized suits.



3. The cockpit was not fully safe without backup Although the SR-71 cockpit was pressurized, it wasn’t pressurized enough for survival at full altitude if it failed.If cabin pressure was lost:pilots would black out in seconds recovery would be impossible at Mach 3 The suit was a life-saving backup system.


4. The suit worked like a personal spacecraft
The suit:provided pressure supplied oxygen
trolled temperature protected against decompression It allowed pilots to survive even if the cockpit failed.


5. Who made the suits NASA helped develop the suits using space program technology.They were very similar to early astronaut pressure suits.


6. Why other jets didn’t need them Most fighter jets: fly below 50,000 ft have enough cockpit pressure don’t face near-space conditions The SR-71 was in a different league.


In one sentence:: SR-71 pilots wore astronaut-like suits because they flew so high that losing cabin pressure would be instantly fatal without a fully pressurized life-support system.