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Thread: Static check with G3X

  1. #1
    Senior Member Cubrath's Avatar
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    Default Static check with G3X

    Anyone done a static check with the G3X with AOA? I have an avionics guy coming on Thursday and after reading the notes on the AOA it sounds like you need to have the AOA hooked up to a static source as well. There is not a lot of room on that probe. Does it take special equipment for the garmin probe? This is the first G3X he has done. Don't want to screw anything up.

  2. #2
    Senior Member TroyBranch's Avatar
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    Default Re: Static check with G3X

    When I built my SuperStol I did not add the AOA on the G3X and just checked it as normal like the AOA was not there. That worked fine. That is my plan with this one, but hopefully someone chimes in with a more definitive answer.

  3. #3
    Member Dickey's Avatar
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    Default Re: Static check with G3X

    Mike,

    When we do the certification for the transponder, we disconnect the lines at the GSU 25 and plumb our pitot/static test box right into the ports on the GSU. After checking the transponder and the altitude reporting, we then put everything back together and do the static leak check (pull vacuum on static system raising altitude to 1000 feet above field elevation then watch for leaks no more than 100 feet per minute).

    As far as how we plumb into the GSU ports, our tester is set up to be able to run two lines from it's static side and one from its pitot side. We connect one static line to GSU Static port, one static line to GSU AOA port, and the pitot line goes to the GSU Pitot port. I don't know what tester your avionics guy has or how it's set up but the idea is to keep all the pressures across all three GSU ports exactly the same. The problem Garmin is talking about is when you pull the pressure down on one port but leave the other at ambient, the differential between them can cause damage when the pressures are excessive.


    -Matt Dickey-
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    Matt Dickey
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  4. #4
    Senior Member Cubrath's Avatar
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    Default Re: Static check with G3X

    Thanks Matt,

    I will pass that information along!

    Mike

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