The F-22 may be the world’s most advanced fighter jet but some pilots are reluctant to fly it for fears of experiencing hypoxia-like symptoms when flying the aircraft. What’s hypoxia you ask? Lack of oxygen, and its caused at least one F-22 crash. The Air Force has yet to identify the root cause of the problem, which was first observed in 2008.
Defense Secretary Leon E. Panetta has just ordered that the aircraft must remain a potential landing site should problem developed until a backup oxygen system is installed. The Air Force hopes to begin installing the backup system by December.
