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Thread: Tail wheel spring

  1. #1

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    Tail wheel spring

    Good morning

    What would be the pros and cons of replacing the tail wheel spring on my supercub with a heavier duty 13/4"(?). I have a Scott 3200 tail wheel. By doing this, will it create more stress on the airframe? Is it an easy change over? This thought originated because of the shimmy problem discussed previously on this website. After I tightened the nuts up some, I did notice that the angle of the post bolt was not the recommended angle but the shimmy did not happen on the last few landings.

    Thanks
    John

  2. #2
    Greg Smith's Avatar
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    There was a good discourse on this last year. Here's the link. I think the stuff you need is on page 2.


    http://www.supercub.org/phpBB2/viewt...ngeron&start=0

  3. #3

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    Hello

    Thanks for the information so far. However, after reading through the information, lots on tail wheel size, but I could not readily see anything on changing over to the larger spring.

    Thanks
    John

  4. #4
    Rookie's Avatar
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    More discussion can be found here (along with some extra stuff about KC ribs):
    http://www.supercub.org/phpBB2/viewt...er=asc&start=0

    I bought the CC kit, minus the spring itself. Be sure you read through the thread to the part where we had to go shopping for a different bolt than supplied, it's a lot easier to do these things ahead of time.

    BTW, it turns out that the CC STC is written to allow a <u>four</u> leaf 1-3/4" spring, not a three leaf. That's what I have now, and I'm happy with it.

  5. #5
    Greg Smith's Avatar
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    Try this link. This is the second page of the thread I referenced before. Scroll down to Crash's post about the Pawnee spring. It starts there.

    http://www.supercub.org/phpBB2/viewt...geron&start=30[url]

  6. #6
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    Crash suggests that a good way to go is a three leaf 1-3/4" spring. Thing is, the CC STC doesn't cover that, at least according to a careful reading of the paperwork, and calls to CC (not by me, by an A&P). If that's not right, I'd like to know it. If there's an STC that covers a three leaf 1-3/4" spring, I'd like to know that too.

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