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  1. Meigsy

    Dented Tubing - Wing Strut - Repair?

    Thanks for the guidance - when I calculate with the jury struts, I find that sleeving over the dent is more than adequate. And yes, the aircraft is registered, no worries there. The "fat ultralight" was more to create a mental picture than to describe the legal status. I believe that for EAA...
  2. Meigsy

    Dented Tubing - Wing Strut - Repair?

    Many thanks to all for the help. I think I understand now that what I'm 'repairing' is the lost critical buckling load, which is so tremendously lower than the tensile strength. Given that there are indeed jury struts, I would in all probability be fine sleeving it, riveting appropriately, and...
  3. Meigsy

    Dented Tubing - Wing Strut - Repair?

    I did my homework - much easier than I expected - which is usually a bad sign for me. For critical buckling load, For 1.5" x 0.035thick, 6061-T6 Al, cylinder, simply supported, Area moment of inertia = 0.043 in4 Young's Modulus = 1.00E+07 psi L = 109 in. Fcr = 359.2 lbf Good thing there...
  4. Meigsy

    Dented Tubing - Wing Strut - Repair?

    Thanks for the prompt and helpful reply! For the strength of the tube, I used the cross sectional area of 0.1618 sq.in. and 42000 psi for the TENSILE strength of 6061-T6, and get 6765 lbf. This would be the force the strut would experience just before it fails, the wings fold up over my head...
  5. Meigsy

    Dented Tubing - Wing Strut - Repair?

    I'm rebuilding a 'fat' ultralight, and discovered a dent in one of the wing struts. Replacement tubing is expensive (to me) to ship at 9' in length, and it's a shame to waste an otherwise 'good' part. I looked at AC43.13 and only found help on splicing tubing on longerons/webs. My thought is...

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