Darryl Holman is building a Coot-A at his home in Redmond, Washington.
  • Redmond, WA
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    March 29, 2008

    Engine Pylon

    Filed under: Engine, Pylon — Darryl @ 10:40 am

    Bending the 1/8″ 2024-T3 aluminum pieces for the engine pylon can be a challenge. Your average Harbor Freight sheet metal brake just isn’t up to the task. I needed a new 814-3 piece and the 814-8 smaller piece as well.

    Last July, Russ Milham mentioned to me that Andy Anderson could get them bent at a reasonable price. Indeed, at the Arlington air show last July, Andy seemed happy to do so. I purchased the sheet at Wicks at Arlington (and, as of a month ago, no longer at Arlington), and sent Andy on his way home, thinking I would see him again in July 2008.

    Andy was passing through town this week, so he brought the pylon piece and spent the night at our house. Andy also snapped a photo of the bending process for the -8 piece:

    Bob Leonard did this work is at his company, Trilet Industries, in Oregon City, OR.

    Here are the results:

    Note that the longer -3 piece must be bent at greater than 90 degrees to account for the taper of the pylon (front to rear). The -8 piece must fit on the inside of the -3 piece.

    The bends were perfect. The -3 piece fits snuggly in the rest of the pylon.

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