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  1. J

    I need Decathlon wood spar engineering drawing

    I am rebuilding a set of 1972 Decathlon wings and need a set of engineering drawings for the spar. I can legally produce a set as owner as long as I have the engineering data. I would like to purchase drawings of the spars, wings, and other airframe parts. Please help me to find these...
  2. J

    making my own spar for Decathlon

    It seems I have two alternatives for replacing the spars in my 72 Decathlon. (1) buy new metal wings from ACA or, (2) make one myself (as an owner produced spar) as specified in AC 43.13-1B para 1-41. If I buy new wings, I'll get rid of the repetative AD inspection (for now) and be out a lot...
  3. J

    Corrosion pitting on longeron on both sides of old repair

    I'm in the process of completely refurbishing a 72 (and then a 73) Decathlon. I've got the fuselage completely stripped down to the bare frame. I've found one of the longerons and two of the cross tubes have extensive pitting. The joint in between the sections of pitting on the longeron has a...
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