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Thread: Heavy Ailerons

  1. #11
    Administrator DesertFox4's Avatar
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    Aug 2008
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    Default Re: Heavy Ailerons

    Check your seat pans is the gist of this one. I'll do it next time at the hangar.


    DesertFox4
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  2. #12
    Senior Member jtpitkin06's Avatar
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    Jan 2010
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    Default Re: Heavy Ailerons

    Larry,

    I have few questions about your seat pan cracking.

    Is your seat pan one with the factory storage compartments molded-in. (one piece.) A seat pan with an optional seat storage box(es). ie builder installed; or, no seat storage box?

    My SS7 seat pan came with factory molded-in seat storage and it appears to add a lot of stiffness to the seat pan by providing additional webbing. However, I do see a potential area on the left side where getting in and out of the aircraft could crack the pan. Based on your experience and a few other reports I may look into beefing up the seat pan in the area over the aileron push rod.

    Thanks for the follow-up report. It's always good to hear you found the problem and it was an easy fix.

    John Pitkin
    Greenville, TX

  3. #13
    JimS's Avatar
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    Default Re: Heavy Ailerons

    Larry,
    ACF-50, the little samples that are handed out at OSH are great for lubing flaperon bushings, rod end bearings, and tail surface hinges.
    See you at the show!

    JimS

  4. #14
    Super Moderator Av8r3400's Avatar
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    Default Re: Heavy Ailerons

    Jim-- Got the camper set up today (in the mud!!) in the usual place. Still planning on flying over to the UL Field on Sunday Morning with the Outstanding Champ.

    John-- I do NOT have the under-seat storage boxes. One of the things that I did (on a suggestion by JimS) was to add a reinforcing block between the seat bottom and underlying tubes. The seat now partially sits on the lower tubes rather than only hanging on the front and rear edges. Adding the under-seat storage boxes will do the same, I think.

    My seat pan delaminated where the reinforcing rib is bonded to the seat pan. The split started at the front of the pan, just behind where the seat hangs on the bungee truss. I re-fiberglassed this area and added more cross-weave layers to hopefully keep this from happening again...
    Av8r3400
    Kitfox Model IV
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