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Thread: Trim actuator cable

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  1. #1
    N981MS's Avatar
    Join Date
    Dec 2012
    Location
    Dexter, GA
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    161

    Default Re: Trim actuator cable

    While I was building I had an award winning builder suggested I not bother putting it in stating his was either nonfunctioning or unreliable. I did not put it in. Here is the logic.

    You only really need to visually know where the trim is before takeoff. I turnaround and look. Therefore I KNOW where it is trimmed. I am not depending on a mechanical device which obviously can fail. If it can fail how much do you trust it? Will you feel the need to look back and check anyway? If you do, you did not need the device in the first place. Once flying you let stick pressure be your guide.

    As a caveat, as I get older turning around to look is not quite as easy as it used to be. I still would not put it in.

    If you can't get yours lubed and working - take it out.
    Maxwell Duke

    Kitfox S6 IO-240 Built it (Flying since 2003)
    Maule M7-235C Sold it (liked it though)
    RV-10 IO-540 Bought it
    Zenith CH-750 Built with 7 friends (DAR Vic Syracuse)

  2. #2
    Senior Member jiott's Avatar
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    Jun 2010
    Location
    Portland, OR
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    2,977

    Default Re: Trim actuator cable

    Here's what I do since I did not put in a trim indicator:
    After I have landed, or part of the checklist before takeoff, I run the trim to full nose down (you can tell by watching the stick with your hands off-it moves slowly then stops). Then I push nose up trim and count to two (one thousand one, one thousand two). This puts the trim in perfect takeoff position without looking. Works for me.
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  3. #3

    Join Date
    Nov 2012
    Location
    Battle Creek, Ne
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    165

    Default Re: Trim actuator cable

    Good info I may do that!!! Thanks of course when in the air I adjust according to stick pressure!

    Patrick series 6

  4. #4
    Senior Member Maverick's Avatar
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    Mar 2017
    Location
    Phoenix
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    295

    Default Re: Trim actuator cable

    So, is the consensus to not put in the trim indicator? I did not put it in my first KF5 but, I thought I might do that this time. However, I did not miss it in the first plane and in looking in the S7 build manual, I do not find a reference to it. Does Kitfox even address this in the newer kits?

  5. #5
    Senior Member Esser's Avatar
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    Jul 2011
    Location
    Edmonton, AB
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    2,048

    Default Re: Trim actuator cable

    It’s an option that I did not order.
    ------------------
    Josh Esser
    Flying SS7
    Rotax 914iS
    AirMaster Prop

    Edmonton, AB, CWL3

  6. #6
    Senior Member
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    Jul 2011
    Location
    milwaukee wi
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    490

    Default Re: Trim actuator cable

    It is nice to have them just before takeoff.

  7. #7
    Senior Member PapuaPilot's Avatar
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    Nov 2013
    Location
    Nampa, Idaho
    Posts
    1,230

    Default Re: Trim actuator cable

    If you are going to install a digital panel the KF factory sells a sensor kit so you can show the trim position on the screen. I put the cable trim indicator in my plane during my build and upgraded to the potentiometer that displays on my screen.

    Personally I want an indicator and would not wan't to be without it.
    Phil Nelson
    A&P-IA, Maintenance Instructor
    KF 5 Outback, Cont. IO-240
    Flying since 2016

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