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1. 07:04 AM - Re: Re: New style wingtip on 601XL (Jim Belcher)
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| Subject: | Re: New style wingtip on 601XL |
On Friday 06 February 2009 21:01, skyridersbn wrote:
Many thanks for the hints. You have addressed some of the concerns I have. The
fiberglass Zenith uses is really lighter than I feel is best. I will likely
install the reinforcements you suggest.
I was tempted to fabricate the old parts, and use them. I may try the new
parts, with the old parts as a backup plan, just in case. I'm somewhat
concerned about the weight of the strobe on the wingtip, because (even though
Zenith puts it there) it really just looks too lightweight to support much of
anything.
>
> Jim, I finished installing the new style wing tips a couple of months ago.
> At that time, I don't think there was any print or write ups on it. I
> also talked to Caleb about the installation. One thing I knew for a fact
> was, fiberglass doesn't usually hold it's molded shape unless it is thick
> and/or strongly reinforced. Of course, these wing tips are not thick by
> any stretch of the imagination and mine didn't hold their original shape
> either. If you have trouble with the parts not lining up or a flat edge
> not being so flat, use a heat gun on it as I did. Stay back from the part
> and heat it up slowly. Gently over pull it to where you want it to be then
> hold it there. Be sure to use a shop towel because its going to be hot.
> Don't overstress it, otherwise it WILL crack!! When it cools, it should
> shrink back some and will be hopefully exactly where you need it to be.
>
> One other thing I did was, I cut an "L" angle and reinforced the wingtip
> inside the wing. I "sandwiched" the bottom of the wingtip between the
> bottom skin and the "L" angle (on top). It worked like a charm - I got a
> nice, straight edge.
>
> My EAA Advisor/DAR suggested I also chalk around the entire wingtip. I
> bought a tube of Dupont 7500 chalk at my local auto paint store. It's
> water soluble and can be cleaned off with soap and water. It can be
> painted.
>
> Hope this helps you out.
>
> --------
> Larry Hursh (N650LM Reserved)
> CH650 (Converted from CH601XL)
> Starting fuselage
> will be Corvair Powered
>
============================================
Jim B Belcher
BS, MS Physics, Math, Computer Science
A&P/IA
Retired aerospace technical manager
============================================
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