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Thread: Dihedral Dilemma

  1. #11

    Join Date
    Mar 2017
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    Default Re: Dihedral Dilemma

    Quote Originally Posted by Chris Iriarte View Post
    I did a so-so leveling a few years back and convinced myself the fuselage was bent since it flew hands off and when you stepped back with it "leveled," it still looked off. This time, I really paid attention to the leveling process, cross-checked that the floor was level, firewall was plumb, etc. and the left wing is 1 degree higher than the right. I think what was throwing me is the line formed by the top of the windshield is not level so when you step back, it throws off the picture. But, everything else lines up, the the struts aren't equal, so here we go!! I'm a one-person show so I'm hoping I can get away with "disconnect the wing end, full rotation, reconnect."

    I've done wash out corrections but this is the first time moving the whole wing. I'm guessing I'll have to take the rear strut completely off, adjust the dihedral, then reinstall the rear strut and set the wash out.

    Chris
    Did you measure the diagonals from wing fitting to lower longeron? This was the problem I had, the fuselage was pushed off to the side at the top.


    Sent from my iPad using Tapatalk

  2. #12
    Gilbert Pierce's Avatar
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    Nov 2007
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    Germantown, Tennessee 01TN
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    Default Re: Dihedral Dilemma

    Mine flew hands off but sitting on a level floor the right wing looked lower than the left. When I changed the bungees it then looked straight. I had checked the gear doors and the gap looked about equal on both sides before I changed the bungees. I guess it doesn’t take much of an unequal bungee sag to make the airplane look off.

  3. #13
    Administrator Steve Pierce's Avatar
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    Nov 2007
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    Graham, Texas, United States
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    Default Re: Dihedral Dilemma

    I install both struts, then pick the wing up with a dry wall lift with foam and adjust dyhedral and then washout. If you don't have a drywall lift it takes two people.

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