You have commented 339 times on Rantburg.

Your Name
Your e-mail (optional)
Website (optional)
My Original Nic        Pic-a-Nic        Sorry. Comments have been closed on this article.
Bold Italic Underline Strike Bullet Blockquote Small Big Link Squish Foto Photo
Submit your comments on this article
Science & Technology
Air Force Believes Problematic Valve At Heart Of F-22 Oxygen Incidents
2012-09-04
Article is behind a paywall. Summary:
The G Suit worn by F-22 pilots includes a valve that connects oxygen hoses to a pilot's pressure garments. This valve was designed for F-15 and F-16 life support systems that are optimized for high-G situations. However the F-22 flies both high-G and high-altitude missions, and that combination has apparently triggered a malfunction in the valve, which the Air Force will replace by the end of the year.
Systems of systems engineering principle #1 - the whole is the interacting sum of the systems that make it up.

Systems of systems engineering principle #2 - sometimes the littlest things are the ones that get ya ...
Posted by:

#2  These two birds aren't the only ones doing the high altitude/high G thing; was the valve redesigned for these two? and why did this never show up on earlier a/c; F-14, F-111(maybe a stretch), any of the Century series fighters, etc? that is one piece of this tragic puzzle i haven't heard yet. glad they found the cause.
Posted by: USN, Ret.   2012-09-04 22:15  

#1  Corollary to Murphy's Law: If in any given situation you have a 50-50 chance of getting screwed to the wall, you'll get screwed 9 times out of 10.
Posted by: Butch Bucket6017   2012-09-04 13:40  

00:00