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Thread: 57A going back together

  1. #181
    MrBill's Avatar
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    Default Re: 57A going back together

    Yes but the conflict is my last posted pic showing drawing 14927, the horn. Your posted drawing, 13113 is the original starting from the #1 serial and up but later came a different drawing (14927) that came starting at serial # 3218 and up. No mention of superseding prior drawings.
    I wouldnt worry about replacing it with the longer/spring version since your normal cat anyway. ..right?

  2. #182
    MrBill's Avatar
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    Default Re: 57A going back together

    Oh, your question... normal and utility category. Utility cat. planes are stronger and withstand stronger loads. I believe with our planes you must remove the rear seats and other things like the differences in that drawing shows. Utility allows spins.

  3. #183
    walt.buskey's Avatar
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    Default Re: 57A going back together

    That's what I was wondering. As far as I know, my poor plane is a Plain Jane "normal" category... though I can't say I understand --in spite of reading and re-reading descriptions of the various categories-- just what "utility" means... and just where my plane fits in. Perhaps Steve or Gilbert can edumucate me on this.

    Oops -- just saw your post, Bill, Thanks.

  4. #184
    Gilbert Pierce's Avatar
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    Default Re: 57A going back together

    Utility category is a reduced gross weight that in my Clipper allows me to do spins.
    You can see the PA22-150 limitations when operating in the utility category which is restricted to two people and a gross weight of 1600 lbs.
    https://rgl.faa.gov/Regulatory_and_G.../$FILE/1A6.pdf

  5. #185
    MrBill's Avatar
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    Default Re: 57A going back together

    Out of that PDF file you'll find for our PA-22-150's They refer you ... See note 3 for operations in normal or utility cat.
    NOTE 3. Serial Nos. 22-3218, 22-3387 and up, of Model PA-22-150 or PA-22-160, are eligible to be operated as a Normal or Utility Category Airplane in compliance with the approved Airplane Flight Manual provided Item 407 (Control modification kit) is installed. Propeller Item 6 is not eligible when Item 407 is installed.
    There are many other requirements for operations in utility. A big one is they limit your center of gravity way forward on the chart. 2-person limit also.

  6. #186
    walt.buskey's Avatar
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    Default Re: 57A going back together

    Yes, I see that -- Note 3, on page 15. Thank you both for the link to that PDF and the explanations, I've saved a copy of that for my files. Learn something new every day.

    May I take it that:

    1) "Item 407 (Control modification kit)" is the longer steering arm with the springs on it?
    2) Since I don't have that, my plane (SN3868 ) is NOT eligible for operation in the Utility Category? (No problem there, don't plan to)

    Thanks again -- Walt

  7. #187

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    Default Re: 57A going back together

    Item 407 is the control system modification, it includes the longer nose wheel steering arm and springs, but also includes the aileron rudder interconnect removal. It also requires the flight manual supplement.
    Without item 407, you are a normal category only aircraft. Your aircraft is eligible for installation of Item 407 by serial, but it was optional.

    Utility allows spins, chandelles, Lazy8s, steep turns and stalls(except whip stalls) at a reduced gross weight and smaller CG envelope. With the lower gross weght, it increases the G limit from 3.8 to 4.4 positive, but no negative G maneuvers are permitted.

  8. #188
    walt.buskey's Avatar
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    Default Re: 57A going back together

    Thank you for that explanation!

  9. #189
    Old3pacer's Avatar
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    Default Re: 57A going back together

    I didn’t realize that restriction. I thought all our planes could operate in utility category.

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