Tag: hypoxia

Following a lengthy investigation into the cause of numerous incidents causing F-22 Raptor pilots to suffer from hypoxia-like symptoms, the U.S. Air Force is...

The first contingent of United States Air Force (USAF) F-22 Raptor stealth fighters arrived at Kadena Air Force Base located on Japan’s southernmost island of Okinawa on 28 July.

The US Air Force says its scientists have identified the root cause of the hypoxia-like events occured in its F-22A Raptor stealth fighters and linked the issue with the supply of oxygen delivered to pilots, not the quality of oxygen they were breathing. Two changes are being implemented to correct the oxygen supply issue - removing a diagnostic filter to increasing the air flow, and foregoing with the high altitude pressure suite, suspected to cause some of the problems.

Hypoxia (oxygen depravation) conditions often affecting pilots during and after flying in F-22s remain unsolved even after comprehensive investigation launched after the 2011 loss of an Alaska based pilot. While the F-22 returned to operational flying, at least 11 new cases were reported since the Raptors resumed their flights, CBS 60 Minutes reported.