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Thread: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by Deuce View Post
    What "false impression" do you think they'd give?

    Because I know how air traffic control and transponders work, I can probably tell you whether that's possible.
    I'm not sure...I just figure anything's possible if you have access to the plane's computers. Does a transponder send a flight number? Could it be made up? Could it be a duplicate of another plane in the air? If you know how they work, then you're the one who can answer your own question with a little explanation for the unwashed .

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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Every part of my being says someone knows a LOT more than they are telling about this. Somebody's embarrassed, or there are international implications that are being protected.

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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by MaggieD View Post
    This may end up being one of the biggest mysteries of the 21st Century. Not that they don't find the wreckage, but that now it appears there may not be any.

    I find it interesting that we're busy patting down gramma and yet don't have live feeds in black boxes. Should we BOLO for an unidentified plane carrying massive explosives headed towards a major city now?

    Will posts soon be relegated to the Conspiracy Forum?
    I don't think anyone has a clue what's happened here and you're right, based on the content of the thread so far, this may end up in the conspiracy bin.

    For what it's worth, it wouldn't surprise me if this is one of those case, like the Payne Stewart incident, where air pressure/oxygen in the plane somehow failed and you have a plane flying itself with no people on board alive and it just aimlessly flies until it runs out of gas and plummets, likely into the ocean. Considering the claims of the plane's altered course and flying for 4 to 5 hours after losing ground contact, it's as good a guess as any.
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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by CanadaJohn View Post
    I don't think anyone has a clue what's happened here and you're right, based on the content of the thread so far, this may end up in the conspiracy bin.

    For what it's worth, it wouldn't surprise me if this is one of those case, like the Payne Stewart incident, where air pressure/oxygen in the plane somehow failed and you have a plane flying itself with no people on board alive and it just aimlessly flies until it runs out of gas and plummets, likely into the ocean. Considering the claims of the plane's altered course and flying for 4 to 5 hours after losing ground contact, it's as good a guess as any.
    The problem is, they now know that two transponder devices were turned off manually within a few minutes of each other. Can't do that if you're asphyxiated.

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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by MaggieD View Post
    I'm not sure...I just figure anything's possible if you have access to the plane's computers. Does a transponder send a flight number? Could it be made up? Could it be a duplicate of another plane in the air? If you know how they work, then you're the one who can answer your own question with a little explanation for the unwashed .
    You don't need to modify a transponder to give a false identity, you just change the code. Transponder codes are assigned dynamically, so a particular aircraft doesn't have a particular code, it will change from day to day. You could duplicate the code from another aircraft that is in-flight, but that would only serve to identify the fake plane faster. "Wait a minute, United 482 is over here headed to Dallas. What's this other guy showing the same code?"

    I guess you could spoof the altitude reporting on your transponder to report a false altitude, but that wouldn't accomplish anything. You can't modify a transponder to give a false position, though. They don't actually send their position as electronic data, the radio waves themselves are detected.

    There aren't a lot of countries that a 777 can fly into undetected. Not what you would call a stealthy aircraft.
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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by Erod View Post
    The problem is, they now know that two transponder devices were turned off manually within a few minutes of each other. Can't do that if you're asphyxiated.
    How do they know they were manually turned off and not simply a mechanical/electrical malfunction that could be responsible for a number of systems failing but the plane still flying?
    "Liberals claim to want to give a hearing to other views, but then are shocked and offended to discover that there are other views." William F. Buckley Jr.

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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by Deuce View Post
    You don't need to modify a transponder to give a false identity, you just change the code. Transponder codes are assigned dynamically, so a particular aircraft doesn't have a particular code, it will change from day to day. You could duplicate the code from another aircraft that is in-flight, but that would only serve to identify the fake plane faster. "Wait a minute, United 482 is over here headed to Dallas. What's this other guy showing the same code?"

    I guess you could spoof the altitude reporting on your transponder to report a false altitude, but that wouldn't accomplish anything. You can't modify a transponder to give a false position, though. They don't actually send their position as electronic data, the radio waves themselves are detected.

    There aren't a lot of countries that a 777 can fly into undetected. Not what you would call a stealthy aircraft.
    I wonder how our air defense monitors commercial and private aircraft. What if a plane just wasn't sending a code? How long would it take air defense to spot it?

    That's a great point, though. Where could it land without some other country's governmental cooperation?

    Very very weird.

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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by CanadaJohn View Post
    How do they know they were manually turned off and not simply a mechanical/electrical malfunction that could be responsible for a number of systems failing but the plane still flying?
    I'm no expert, but that's what ABC News was reporting last night.

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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance


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    Re: Investigators reportedly eye 'sabotage' in Malaysian jet disappearance

    Quote Originally Posted by MaggieD View Post
    I wonder how our air defense monitors commercial and private aircraft. What if a plane just wasn't sending a code? How long would it take air defense to spot it?

    That's a great point, though. Where could it land without some other country's governmental cooperation?

    Very very weird.
    I'll say I'm absolutely no expert either.

    There are problems Maggie, as you mention - it's why drug traffickers are able to fly planes at low altitude into countries to drop off drugs without detection. A plane without a transponder, taking off from an uncertified airstrip, and flying a altitudes below those required for radar to detect, can make their way across borders.

    Now, getting into a populated area at low altitude would not be an easy task because everyone and their granny would be calling 911 to tell the authorities that a really low flying plane just flew over their house - but by then, it might be too late to do much about it. It's likely that a city like New York has some detection devices in place to pinpoint unauthorized planes coming near them.
    "Liberals claim to want to give a hearing to other views, but then are shocked and offended to discover that there are other views." William F. Buckley Jr.

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