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Thread: Rudder rib stitch

  1. #1
    Dave Holl's Avatar
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    Default Rudder rib stitch

    Guys
    I have covered my rudder and would welcome your views on whether to rib stitch it? also what are your views on rib stitching the tail plane and elevator?
    Rgds
    dave
    Dave Holl
    Building Kitfox MK7
    Rotax 912ULS

  2. #2
    Senior Member Dorsal's Avatar
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    Default Re: Rudder rib stitch

    For aesthetics or function? I don't believe there is much functional value in stitching these surfaces.
    Dorsal ~~^~~
    Series 7 - Tri-Gear
    912 ULS Warp Drive

  3. #3
    Dave Holl's Avatar
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    Default Re: Rudder rib stitch

    Function!
    I only ask as my Jodel aircraft does have the elevator, ailerons and rudder rib stitched but the ribs are wider than on the kitfox ie not much fabric for the stitch to hold in place on the kitfox. As far as I can see the manual does not mention rib stitching.
    Dave
    Dave Holl
    Building Kitfox MK7
    Rotax 912ULS

  4. #4
    Senior Member Dave S's Avatar
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    Default Re: Rudder rib stitch

    Dave H,

    Since I had the airfoiled tail which has a crowned surface exposed to the airflow, I did not feel it was necessary to stitch the VS, HS or rudder; however, I did stitch the wider metal ribs on the elevator where the fabric is flat.

    Trying to stitch really narrow ribs has its own constellation of issues and I did not feel it was necessary anyway at those locations.

    FYI - I used the KF manual and the Poly Fiber Manual in combination for guidance.

    Sicnerely,

    Dave S
    KF 7 Trigear
    912ULS Warp
    St Paul, MN
    Last edited by Dave S; 03-30-2013 at 09:48 AM.

  5. #5
    Administrator DesertFox4's Avatar
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    Default Re: Rudder rib stitch

    Not needed.


    DesertFox4
    Admin.
    7 Super Sport
    912 ULS Tri-gear


  6. #6
    Senior Member
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    Default Re: Rudder rib stitch

    I stitched all surfaces on my SS for uniformity. May not be needed or required but looks better to me.

    Dick B

  7. #7
    Senior Member HighWing's Avatar
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    Default Re: Rudder rib stitch

    Quote Originally Posted by Dick B in KY View Post
    I stitched all surfaces on my SS for uniformity. May not be needed or required but looks better to me.

    Dick B
    I did the same. I thought I needed to Stitch the bendable ribs in my very experimental rudder trim system and then did the rest for consistency. I do agree with the others that it is not necessary and if you checked out all the Kitfoxes you will ever see, you will find that it is very rarely done.
    Lowell

  8. #8
    Dave Holl's Avatar
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    Default Re: Rudder rib stitch

    Thanks for all your views, I think on balance I won't rib.
    Dave Holl
    Building Kitfox MK7
    Rotax 912ULS

  9. #9
    Senior Member chefwarthog's Avatar
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    Default Re: Rudder rib stitch

    You're one day closer to fly!!!
    Eric Therrien
    Nicolet, Qc. Ca.
    In preparation.

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