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Raptor pilots: "Just say NO!"

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  • Raptor pilots: "Just say NO!"

    AirDOGGe sez: You KNOW there is a serious issue afoot when military fighter pilots, of all people who fly planes, place their careers on the line by refusing to fly, and with good reason. Sure there is the problem of national security, but flying an F-22 these days seems a bit like playing an aerial version of Russian Roulette.






    Some USAF Pilots Reportedly Refusing Raptor Duty
    Hypoxia Issues Causing The Career-Threatening Decision

    From AERO-NEWS.NET:


    Some Air Force pilots say they will not fly the F-22 Raptor while problems with the oxygen system remain unresolved, even though the move could cost them their careers. Pilots who refuse such orders face disciplinary action as severe as discharge from the service.


    There are 200 pilots qualified to fly the F-22 at seven bases across the country, according to a report in the Los Angeles Times. The Air Force did not say how many had refused to fly the airplane.


    The Raptor's supplemental oxygen system has been the focus of a years-long investigation. Some pilots have reported symptoms of Hypoxia, which can lead to blurred vision, nausea, and even blackouts. Dozens of such incidents have been noted, and the entire fleet of F-22s was grounded for five months while an investigation was conducted. The Air Force was not able to say definitely what caused the Hypoxia symptoms in the plane's pilots. The Raptor was returned to service in September of last year, and the Air Force says 11 incidents have been reported since that time.


    The Air Force has called in help from agencies like NASA in an effort to determine the nature of the problem. At $422 million per copy, the U.S. Congress is also paying very close attention to the progress of the investigation.
    Last edited by AirDOGGe; 05-03-2012, 11:08 AM.

  • #2
    Re: Raptor pilots: "Just say NO!"

    What is the altitude are they flying those at? I just read an article in Air and Space about the TR1 pilots having the same issues. Granted they are flying at 75000 feet and the cockpits are pressureized to 26000 feet, and they are up there for a very long time. The U2/TR1 guys have been having the issues for the better part of 50 years, but just recently are pilots actually saying something.

    I wonder if any other pilots are running into the same issues but we just don't hear about it?

    Will

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    • #3
      Re: Raptor pilots: "Just say NO!"

      Originally posted by RAD2LTR View Post
      I wonder if any other pilots are running into the same issues but we just don't hear about it
      I've been in the USAF 17 years, and never heard of any pilots making such a request who flew any other aircraft at any point.

      I think it's indicative of something significant afoot.

      Comment


      • #4
        Re: Raptor pilots: "Just say NO!"

        The TR-1 problems are with long exposure to low atmospheric pressures, not with the oxygen-delivery issues the Raptor pilots are experiencing.

        I hope the boys up in the Pentagon pay heed to the worries of some of our nations finest pilots and get something done about it soon. Just saying "There is a serious and potentially lethal problem, but we can't locate or fix this problem, so go ahead and fly it anyway...." is simply outrageous.


        FIX THE PLANES FIRST!





        ------------------------------------
        A bit more info from AVIATION WEEK:


        "The F-22’s capabilities demand punishing performance from pilots. It is the only fighter capable of sustained supercruise at Mach 1.5 without using military power—or afterburner—and can operate for long periods at 60,000 ft. Pilots are also exposed to extreme forces owing to the aircraft’s ability to quickly accelerate, decelerate and execute intense maneuvers using thrust-vectored propulsion.


        Service officials temporarily limited the altitude of the aircraft, but eventually lifted all restrictions. Officials once focused on whether a toxin was being introduced into the oxygen supply for the pilot—which is powered by a Honeywell onboard oxygen-generating system. However, Maj. Gen. Charles Lyon, ACC’s director of operations, says that investigations using filters introduced into the pilot’s oxygen system have not turned up any conclusive evidence.

        After analyzing hundreds of these filters used in flight and comparing them with filters not used for flight, Lyon said that those not used in flight often showed higher rates of toxins. “This informed our thinking and research,” he says. Although the toxin theory has not been completely discounted, it is not a central focus for now.


        Initially, the study focused on the aircraft, Lyon told reporters April 30 during a press conference here. Now, however, the team is looking into the physiological support equipment used by pilots and exploring whether there are commonalities in the flight profiles—various altitudes, maneuvers, etc.—that could be common to the incidents. The majority of the incidents have occurred at the end of a flight, Lyon says, prompting officials to wonder if there is a cumulative effect of some factors on the pilots."


        .
        Last edited by AirDOGGe; 05-03-2012, 07:29 PM.

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        • #5
          Re: Raptor pilots: "Just say NO!"

          This may sound stupid, but does the low RCS have something to do with it ? How was the oxygen system solved in YF-23 Black Widow II ?

          Do I seen an inlet behind the canopy here; http://www.aviastar.org/air/usa/northrop_f-23.php
          Last edited by First time Juke; 05-04-2012, 02:25 AM.
          http://max3fan.blogspot.com/

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          • #6
            Re: Raptor pilots: "Just say NO!"

            DP ( double post )
            Last edited by First time Juke; 05-04-2012, 02:25 AM.
            http://max3fan.blogspot.com/

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            • #7
              Re: Raptor pilots: "Just say NO!"

              Sorry if this was posted already, but the pilots speak on 60 minutes this sunday.....
              Last edited by Coyote Chris; 05-04-2012, 08:20 PM.

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              • #8
                Re: Raptor pilots: "Just say NO!"

                Originally posted by Juke View Post
                This may sound stupid, but does the low RCS have something to do with it ? How was the oxygen system solved in YF-23 Black Widow II ?

                Do I seen an inlet behind the canopy here; http://www.aviastar.org/air/usa/northrop_f-23.php
                Oxygen is from an OBOGS/MSOGS system that primarily runs on engine bleed air.

                Comment


                • #9
                  Re: Raptor pilots: "Just say NO!"

                  Originally posted by Randy Haskin View Post
                  Oxygen is from an OBOGS/MSOGS system that primarily runs on engine bleed air.
                  Is it occuring at certain speed at defined altitude ?

                  Bleed air usually runs the pressurization as well.
                  http://max3fan.blogspot.com/

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