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Aileron nose rib flange for rivets & flutes

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  • Aileron nose rib flange for rivets & flutes

    I rubber pressed all my pocket ribs and flap & aileron nose ribs today and am truing-up the flanges to 90 degrees.

    The flange segments range in length from as little as about a 1/2 inch up to a few inches on the straights. It looks like most of the short flange segment will each get one rivet and won't need any fluting.

    However, the first flange segment above the counterweight is too long and too curved to bend happy.

    Is there any reason I can't put a flute or two in this first flange and plan for a rivet on either side of the flute?
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    Karl
    Bearhawk Bravo #1508B - Scratch Build (wings)
    Northern Idaho

  • #2
    I have noticed from various pictures of other plans/models that the lower flange segment is drawn to be shorter than as shown on my model B plans.

    I'm having a challenge getting this flange to be happy because of the curvature and length.

    Should I flute it or add an additional relief hole & cut-out (now that they are already cut and bent)? ?

    I'm also seeing that some plans call for a separate attach angle while my plans incorporate an integrated aft flange. Which method works best for attaching the nose rib to the spar?
    Karl
    Bearhawk Bravo #1508B - Scratch Build (wings)
    Northern Idaho

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    • #3
      Originally posted by kilohotel View Post
      Is there any reason I can't put a flute or two in this first flange and plan for a rivet on either side of the flute?
      Absolutely not. That's exactly what I had to do with similar nose ribs on my RV-10. In fact, in some places I had to flute so heavily there was only just a spot to rivet.

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