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Thread: Lifting the Wings

  1. #1

    Lifting the Wings

    Hello,

    Now that I have the donuts on order, I shall have to jack the
    wings. So far, I have jacked what needed to be jacked with a scissors
    jack that I modified with a pad of epoxy putty molded to match the
    bottom of the landing gear.

    Not having the Beech jack pads, or indeed anything that could push
    up on the jack pads, I guess I'll go with a contoured cradle, which the
    shop manual does approve. But they give no drawings, and I guess the
    contour is up to me. I already have a cradle for the nose.

    I made the nose cradle by templating the fuselage with cardboard and
    then transferring it to plywood. Two 3/4" layers of plywood gave that
    one a solid inch and a half of bearing surface.

    It seems to me that the only "good" place to support the wing is
    right under the spar. Anyplace else is just liable to crease
    sheetmetal.

    Thoughts?


    - Jerry Kaidor ( jerry@tr2.com )







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  2. #2

    Lifting the Wings

    Sounds like you've thought it out pretty well and yes staying under
    the spar is important for the wings. Obviously, the same idea is
    important for the fuselage, to keep the cradle under a frame. For
    both, I'd add that it's important not to allow the plane to slide on
    the pads. I had this happen once 31 years ago in A&P school, and a
    second time with a Mooney a year or so later and I was under that
    plane at the time. Scared the life out of me! Ever since, I use
    something to keep the plane from sliding (Walmart has it). The thin
    anti-skid rubber stuff that goes under throw rugs on the cradle pads
    (carpet) works great. Haven't had that problem since.

    If outdoors, know what the weather will be for the next few days so
    your plane isn't bouncing on the cradle in the wind if you can't
    finish.
    Bob

    . --- In musketeermail@yahoogroups.com, "jerrytr2com" <jerry@...>
    wrote:
    >
    > Hello,
    >
    > Now that I have the donuts on order, I shall have to jack the
    > wings. So far, I have jacked what needed to be jacked with a
    scissors
    > jack that I modified with a pad of epoxy putty molded to match the
    > bottom of the landing gear.
    >
    > Not having the Beech jack pads, or indeed anything that could
    push
    > up on the jack pads, I guess I'll go with a contoured cradle,
    which the
    > shop manual does approve. But they give no drawings, and I guess
    the
    > contour is up to me. I already have a cradle for the nose.
    >
    > I made the nose cradle by templating the fuselage with
    cardboard and
    > then transferring it to plywood. Two 3/4" layers of plywood gave
    that
    > one a solid inch and a half of bearing surface.
    >
    > It seems to me that the only "good" place to support the wing is
    > right under the spar. Anyplace else is just liable to crease
    > sheetmetal.
    >
    > Thoughts?
    >
    >
    > - Jerry Kaidor ( jerry@... )
    >







    Join BAC today and be a part of the ONLY Type Club for the Musketeer series!

    www.beechaeroclub.org


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    <*> To unsubscribe from this group, send an email to:
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