Originally Posted by
Senior Skipper
Hi all,
How do fighter jets regulate pressurization in the cockpit? With the vertical speeds attainable, what's it like in there? Does it vary? By how much? How does the pressurization system keep your ears from killing you with pain?
Most tactical aircraft run a low differential pressure of about 3-5psi supplemented by breathing 100% oxygen during flight(at least in the Navy).
This minimizes the chances of the bends during normal flight and reduces the effect of an explosive decompression. Never had a problem with clearing the ears even at 50,000 FPM short term rates of climb or dive.