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Thread: Leading Edge Clamping Tools

  1. #1
    Steve Pierce's Avatar
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    Leading Edge Clamping Tools

    Over the years I have tried all kinds of ways the install nice tight leading edges on the nose ribs of a Piper wing. The best solution I found were the clamps that Dakota Cubs uses in their wing assembly. With Dakota Cub's permission I had my local machine shop make the handles and frames for these tools and have custom made them for myself and some friends I have also sold a few sets. Someone contacted me recently about a set and after talking to my machinist friend I can get the price down if we can make more than one set. I use 4 of the standard clamps and a fifth that has a cut out that goes around the strut attach fittings. With the wing upside down I screw the bottom of the leading edges to the ribs, flip the wing right side up with my washout block in place, clamp the skin around the ribs, adjust the tension on the clamp and drill and screw the top of the leading edges to the ribs. The tools make it easy to get the skin nice and tight to the rib without any high spots that tend to bulge and oil can. I know these aren't for everyone but something I thought I would throw out there. Depending on how many we build I can do them for somewhere between $125-150 per tool or $625-750 for a set. If there is no interest I understand but thought I would throw this out there.

    The clamp consists of a frame and a handle with an aluminum strap with the soft side of Velcro to hold the skin.
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    The tool with the leading edge held in place.
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    The frame has an ear that fits into the spar cap to hold it before clamping.
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    The special frame that fits around the lift strut fittings.
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    Five clamps hold the long skin at the lift strut attach fitting on.
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    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
    Likes Hardtailjohn, stknrddr, 1934A, gahi, jrussl and 3 others liked this post

  2. #2
    Steve's Aircraft (Brian)'s Avatar
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    Iím probably good for a set... started to draw out these a long time ago to make my own but never have had the time to finish them... Iíll see if any of the local Oregon guys would be interested..

    Brian


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  3. #3

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    Steve,
    nice work on the clamps!
    I’ve been using Dakota Cubs leading edges, I’ve found if they’re snug over the (piper) ribs there’s usually some overhang at the spar. Have you had the issue? How does one address the overhang/gap between formed edge of skin and spar cap?

    thanks,
    Doug

  4. #4
    Steve Pierce's Avatar
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    Quote Originally Posted by Oliver View Post
    Steve,
    nice work on the clamps!
    I’ve been using Dakota Cubs leading edges, I’ve found if they’re snug over the (piper) ribs there’s usually some overhang at the spar. Have you had the issue? How does one address the overhang/gap between formed edge of skin and spar cap?

    thanks,
    Doug
    Univair's are the same. That is why the clamp rests on the spar web and not the cap. I try to fudge the excess between the top and bottom of the spar.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
    Thanks Oliver thanked for this post

  5. #5

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    Iím in for a set.


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  6. #6

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    If you have enough orders to keep in under $650, Iíll take a set.


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  7. #7

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    I’ll buy a set too

  8. #8
    Charlie Longley's Avatar
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    I am going to circumvent the need for clamps by buying a set of wings from Dakota Cubs.

  9. #9
    Steve Pierce's Avatar
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    Ok, materials ordered and my machinist will cut frames and handles and I will start making the other parts.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  10. #10

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    STEVE
    I will take a set also.
    DENNY

  11. #11

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    I would also like to purchase a set. Thanks.

  12. #12
    Steve Pierce's Avatar
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    Well, we got them all made. $650 for a set of 5 and $15 flat rate USPS Priority shipping. You can mail a check to:
    Pierce Aero
    196 US Hwy 380 East
    Graham, TX 76450
    or email me at steve@pierceaero.com if you want to use Venmo.
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    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
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  13. #13
    Grant's Avatar
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    Steve - did you make any extra sets? I'd take a set if you did.

  14. #14
    Steve Pierce's Avatar
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    No, I just built what people ordered.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

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