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On my IV-P I evened and squared the wing roots by using a wooden guide and then sanding the high spots. Then I installed the fairings but despite my best efforts I had some gaps and low spots. I used scrap material from the fairings to build up the areas as shown. If needed I put interior layups onto the extensions as well. Then the new edge is sanded to match the wing contour and filled. I save all kinds of trimmings- they're good for filling, making new parts, substrate for layups. etc. -Bill Wade
-----Original Message----- From: Robert R Pastusek
Sent: Friday, January 18, 2013 10:42 AM
To: lml@lancaironline.net
Subject: [LML] Re: [LNC2] Lancair 360 stub wings
Rob wrote:
Well, I started to attach the first of my stub wings on my Lancair 360 MKII.
I did the left side. After constructing a wing jig, measuring everything several times, I thought I had everything lined up perfectly, but it looks like I was off by about 3/32" in a few places... I attached some pictures.
The trailing edge looks pretty well lined up which I also spent a lot of time on.
I'm thinking this is a small enough gap that I can use micro and build on, but I'd like some expert opinions. The leading edge is the worst of it which was what I spent the most time trying to get lined up.
Most of the top of the wing is lined up, but I have a 1/16" gap in a few spots that I think I can just smooth with micro and go on.
I thought about cutting the stub wing from the main spar and trying to re-attach, but if this isn't that bad, I don't want to mess up anything more if I can smooth it all out with micro.
Rob,
I think micro will fix you up nicely. You can improve the strength of the joint/fill by first filling with micro, then sanding to the contour and shape you want, then laying a single layer of glass or carbon cloth over the area. This adds some weight, but the fibers really strengthen the micro. I did this with the wing to fuselage fairing areas of my IV-P and have been very pleased with the results...no cracks at all after 5+ years.
Bob
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