Phantom88 Posted July 24, 2012 Posted July 24, 2012 Looks like a faulty valve in the flight vest http://www.stripes.com/news/dod-identifies-f-22-issues-moves-to-lift-flight-restrictions-1.183876 Patrick
Phantom88 Posted July 25, 2012 Author Posted July 25, 2012 This just seems to easy to be overlooked for so long,No? Patrick
Griffin Posted July 25, 2012 Posted July 25, 2012 Not necessarily. Things might seem to work as normal but in some environmental sweet spot things just go wrong. It's hard to find such things and a common task for mechanics to troubleshoot something that works on ground but malfunctions randomly in flight. http://en.wikipedia.org/wiki/Boeing_737_rudder_issues 1
Peyoteros Posted July 25, 2012 Posted July 25, 2012 Sabotage! "Eagle Dynamics" - simulating human madness since 1991 [sIGPIC][/sIGPIC] ۞ ۞
Appleonastick Posted July 25, 2012 Posted July 25, 2012 So mechanics wear flight vests? DCS A-10C II Warthog, DCS AV-8B, DCS F/A-18C. DCS F-16C DCS KA-50 III, DCS F-14B. DCS AH-64 Apache. DCS Mirage F1. DCS F-15E. System: Z690 - i9-12900k - RTX 3080ti - 32gb ram - 2tb NVME - 2x2tb HDD - TM Hotas Warthog - MFG Rudders - Trackir/VR
HiJack Posted July 25, 2012 Posted July 25, 2012 Not necessarily. Things might seem to work as normal but in some environmental sweet spot things just go wrong. It's hard to find such things and a common task for mechanics to troubleshoot something that works on ground but malfunctions randomly in flight. http://en.wikipedia.org/wiki/Boeing_737_rudder_issues To bad it had to take one life first :( (or was it more than one life?) (HJ)
JB3DG Posted July 25, 2012 Posted July 25, 2012 The smallest things can cause the biggest trouble and because they are so small they are hard to find. For example there was that time when several F-86s crashed killing their pilots and no one could figure out why until Chuck Yeager did a slow roll over a friend's house and his aileron locked. When they checked the controls out they found a small bolt on one of the hydraulic cylinders that was installed upside down. Turns out an old guy on the assembly line ignored orders because he believed bolts had to be installed head up not head down.
Phantom88 Posted July 26, 2012 Author Posted July 26, 2012 The smallest things can cause the biggest trouble and because they are so small they are hard to find. For example there was that time when several F-86s crashed killing their pilots and no one could figure out why until Chuck Yeager did a slow roll over a friend's house and his aileron locked. When they checked the controls out they found a small bolt on one of the hydraulic cylinders that was installed upside down. Turns out an old guy on the assembly line ignored orders because he believed bolts had to be installed head up not head down. Never heard that,interesting story:thumbup: Patrick
Slayer Posted August 2, 2012 Posted August 2, 2012 This is a joke and a lie. I read some of the stories from the pilots. They want us to believe that these highly educated pilots couldn't feel their vest inflating? All 22? I call BS. The pilots also reported after effects lasting for days and weeks. I'm sorry but a vest isn't doing this. For 2 F-22 pilots to outright refuse to fly, blow the whistle and contact a congressman for protection it's not a stupid vest inflating...it's contaminated O2...if you read what the pilots say it sounds like carbon monoxide poisoning or some other chemical getting into their air scrubbers. [sIGPIC][/sIGPIC] System Specs Intel I7-3930K, Asrock EXTREME9, EVGA TITAN, Mushkin Chronos SSD, 16GB G.SKILL Ripjaws Z series 2133, TM Warthog and MFD's, Saitek Proflight Combat pedals, TrackIR 5 + TrackClip PRO, Windows 7 x64, 3-Asus VS2248H-P monitors, Thermaltake Level 10 GT, Obutto cockpit
FatSlapper Posted August 2, 2012 Posted August 2, 2012 Are these pilots always on oxygen, even at low altitudes. Or I should ask: breathing through a mask?
mikoyan Posted August 2, 2012 Posted August 2, 2012 There is reports that pilots still think that the problem persist. It might be that the out of ordinary performance of the raptor is creating unexpected physiological conditions on the pilots. This jet stays at higher altitudes than any other fighter; super cruises most of the time; and due to that, it is more likely to be pulling gs more often than a 4th generation fighter; this aggravated by the high altitudes could be too much for the human body after all.
Vekkinho Posted August 2, 2012 Posted August 2, 2012 ...it's contaminated O2...if you read what the pilots say it sounds like carbon monoxide poisoning or some other chemical getting into their air scrubbers. So don't fart in your rubber suit... [sIGPIC][/sIGPIC]
mvsgas Posted August 3, 2012 Posted August 3, 2012 (edited) You guys realize that several aircraft had this problems. Only the 22 pilots can't handle it. http://www.public.navy.mil/navsafecen/Documents/media/approach/issues/App_Jul-Aug10.pdf “Why acetylene?” The Naval Safety Center released a message in August 2005 when it became apparent that contamination from OBOGS units might be seen as a cause of hypoxia incidents. The following guidance was included: “A remote possibility of contamination by gases such as acetylene, carbon monoxide, and carbon dioxide can cause additional hypoxia risks not previously identified, particularly in OBOGS-equipped aircraft. To better understand these possible contamination concerns, the following additional actions are requested by Naval Safety Center in all hypoxia cases to rule out contamination as a cause factor. Submit a red top blood specimen to AFIP with a DD-1323 (toxicological examination request and report form) and in the section incident/hypoxia block mark “hypoxia episode” screen for “acetylene.” AFIP toxicology lab will continue to routinely screen all blood samples for carbon monoxide.” http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA530631 Edited August 3, 2012 by mvsgas To whom it may concern, I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that. Thank you for you patience. Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..
marcos Posted August 11, 2012 Posted August 11, 2012 This just seems to easy to be overlooked for so long,No? You'd be surprised. I was looking at a flaw with the T-45 Goshawk's ECS system that caused it to chuck ice at pilots in 1999.
PlainSight Posted August 11, 2012 Posted August 11, 2012 Why not use oxy supply that 4th gen planes use? Is it not powerful enough or something? [SIGPIC][/SIGPIC]
HiJack Posted August 11, 2012 Posted August 11, 2012 Why not use oxy supply that 4th gen planes use? Is it not powerful enough or something? I think there was an option to save some weight that lead to a new system.
mvsgas Posted August 11, 2012 Posted August 11, 2012 Why not use oxy supply that 4th gen planes use? Is it not powerful enough or something? You would have to redesigned the entire environmental control system, not something that can be done quickly To whom it may concern, I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that. Thank you for you patience. Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..
tflash Posted August 14, 2012 Posted August 14, 2012 (edited) How the Air Force lost an excellent pilot, a billion-dollar plane, its dignity and reputation by putting their heads in the sand and making an ugly attempt to put the blame in a dead man's shoes: http://abcnews.go.com/Blotter/exclusive-air-force-warned-fatal-22-fighter-flaw/story?id=16957535 Absolutely dishonourable and I am so glad this backfired. To me, the pilots' wife deserves a Medal of Honour for her courage to take on the defense giants and helping to save both the future of the F-22 and maybe other pilot's lives. I'm clearly not with you on this mvsgas :=) Edited August 14, 2012 by tflash [sIGPIC][/sIGPIC]
marcos Posted August 14, 2012 Posted August 14, 2012 Damn I saw that story once today and assumed it was old news but it's dated 14 Aug.
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