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Question for the scratch-builders. I have my wings in position on the fuselage for welding on the attach fittings using wing stands and everything is absolutely dead-nuts on...except. Except the distance between the front bolts that hold on the wings. The measurement should be 44 5/8th and I have 44 7/8ths. The distance between the bolt hole in the fitting and the top longeron centerline should be 1 1/16ths and I have 1 3/16ths. In effect I have added 1/8th of an inch to both sides. Three things I can do that I can think of: 1. Remake the front fittings and drill the hole closer. 2. The front is only drilled out to 1/4 and needs eventually to get to 3/8ths. I could do that now and favor the inside of the hole by 1/8th, but that would mean taking the spar hole to it's final diameter as well. 3. Weld it up as-is and not worry about it. The rear mounts I have to redo if I go with just leaving it alone because they are off by that much too (too short). Thoughts?
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Swept wing Bearhawk!
Seriously though, if you were to just use them as is, the top of the wing strut will be aft 1/4" from the design, wing tip 5/8" aft. I'm guessing Bob would agree that there wouldn't be any difference in performance or otherwise. Option 2 seems quite reasonable as well. -
I guess I didn't clarify. There are no mounts welded anywhere and there is no reason to "sweep" the wings back. Everything is just perfect, measurement-wise, except for the location of the front mount hole. I would just remake the aft mounts to compensate.
One more thought came to mind. It would be easy to drill the forward mounts to 3/8ths, favoring the inside by an 1/8th. I could put a 3/8ths tubing bushing on each side and still keep the spar hole at 1/4in. Hmmmm...
(a bit more here: http://www.mykitlog.com/yeeeha/)Last edited by alaskabearhawk; 01-25-2015, 03:41 AM.Comment
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Looking good Paul! I'm glad to see you're at the point of fitting your wings. It's been a task I've been kind of dreading. I'll be following your lead on this!Comment
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