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  1. 12-18-2007, 11:52 AM #1
    Jackpilot
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    Speed tape failure in PFD

    Got a curious recurrent speed tape failure recently in full flight..just goes back to Zero and stays there ....All the rest is fine ..I did not change anything in software or hardware...BIG ??

    Anyone knows?
    Jackpilot
    B737-700 Posky
    FS9/P.Magenta
    without PMSystem
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  2. 12-18-2007, 12:02 PM #2
    stefanloss
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    Pitot Heat activated?



    Donīt want to be the smart ***, but actually thatīs what I once forgot. After a while, the speed display went to 0 and things started to get exciting...
    Stefan Loss
    Cologne, Germany

    737-NG
    Engravity, Project Magenta Full Boeing Software
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  3. 12-18-2007, 12:51 PM #3
    Trevor Hale
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    My thought exactly. Turn on Pitot heat, and it will work again Did your standby Airspeed still work?
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  4. 12-18-2007, 01:46 PM #4
    Jackpilot
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    All works fine except the speed tape.. even the digits indicating GS work...
    Very curious!!
    Jackpilot
    B737-700 Posky
    FS9/P.Magenta
    without PMSystem
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  5. 12-18-2007, 06:41 PM #5
    stefanloss
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    Hmm,

    Im not exactly sure, but isnīt GS calculated via nearby navigaiton aids (bearing/distance)? That could be the reason why the correct GS is shown, though the Pitot Tube is blocked. Unfortunately I donīt have my AOM at hand right now.

    Anyway, if you are sure that Pitot Heat is not the cause for your problem, I fear I donīt have any other ideas at the moment.
    Stefan Loss
    Cologne, Germany

    737-NG
    Engravity, Project Magenta Full Boeing Software
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  6. 12-18-2007, 08:34 PM #6
    NicD
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    Sometimes I have to turn all the anti-ice swithces on to clear this issue. It's FS "intelligence" at work
    Nic D'Alessandro
    737NG builder (Hobart, Australia)
    http://simsation.com.au
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