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To: CedarDave
I keep thinking that this sounds similar to the Payne Stewart incident, where a sudden decompression of the cabin happened, immediately killing everyone on board. However, that doesn't explain why the transponder was turned off.

Where is Columbo when we need him?

7 posted on 03/13/2014 2:06:14 PM PDT by GreenHornet
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To: GreenHornet
I keep thinking that this sounds similar to the Payne Stewart incident, where a sudden decompression of the cabin happened, immediately killing everyone on board. However, that doesn't explain why the transponder was turned off.

Investigators of the Payne Stewart incident never concluded the speed of the decompression - whether it was slow or rapid. A commercial airliner's oxygen systems are automatic and should deploy when the cabin pressure exceeds a certain altitude - something not required of private jets. They also deploy for the pilots. At 35,000' the time of useful consciousness is from 30 to 60 seconds.

A rapid decompression could reduce that by half, though, if air is forced out of the lungs due to the decompression - source: http://en.wikipedia.org/wiki/Time_of_useful_consciousness

13 posted on 03/13/2014 2:15:21 PM PDT by IYAS9YAS (Has anyone seen my tagline? It was here yesterday. I seem to have misplaced it.)
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To: GreenHornet
I keep thinking that this sounds similar to the Payne Stewart incident, where a sudden decompression of the cabin happened, immediately killing everyone on board.

I also recall that Greek airline accident about ten years ago when the cabin pressurization got set on "manual," and caused everybody on board to black out. Since the autopilot was set, the aircraft just continued to fly until it ran out of fuel and crashed. Of course in that case they were still able to track the plane.

20 posted on 03/13/2014 2:29:33 PM PDT by Mr Ramsbotham (Laws against sodomy are honored in the breech.)
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To: GreenHornet

Where is Tom Clancy I say? =)


27 posted on 03/13/2014 2:35:46 PM PDT by Patriot Babe
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To: GreenHornet

Exactly..dead people can’t turn off transponders..and you have to be extremely knowledgeable about planes to do so, so the pilots(Or someone else, like a hijacker) had to have turned them off..remember, all of the 9/11 hijackers, the second they took control of those planes what is the first thing they did, turn OFF the transponders


28 posted on 03/13/2014 2:36:22 PM PDT by Sarah Barracuda
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To: GreenHornet

>> decompression ... happened, immediately killing everyone on board...

Well, it doesn’t “immediately kill”. TUC - time of useful consciousness is altitude dependent. At 35,000 feet, you can go from 30 to 60 seconds before you enter la-la land. A rapid decompression (i.e. a BIG hole in the fuselage) can cut that time in half. But still plenty of time to get over the “WTF was that?” and put on the mask.

FAA regulations require one pilot to wear the O2 mask above FL350 (35,000’). This is routinely ignored by aircrews.


30 posted on 03/13/2014 2:39:22 PM PDT by QBFimi (/...o.o/.o...ooo/...o.o...o/ooo/...o.o/.o/ooo.//o..o./.o.)
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