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Old 01-25-2005 | 06:52 PM
  #27  
hookedonrc's Avatar
hookedonrc
 
Joined: Dec 2002
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From: Tulsa, OK
Default RE: Sig Hog Bipe Build

Day 6:
Not a bad day, all things considered, finished up the center top and bottom deck sheeting, finished off the mounting holes in the upper wing. The instructions say to use a 7/16" brass tube to cut the holes for the wing mounting screws in the deck sheeting, but I chose to use a 1/2". Not that I had that much disagreement with the isntructions, just that I had a little damage from redrilling the hole in the mounting blocks from below. I went too far through on the original hole when I drilled it out a little to plug it with a dowel. Anyway, the 1/2" hole just means a little more room to move the screw driver around when attaching the upper wing if necessary. And, if I feel the need, I can always drill it out a little and use a 1/4 X 20 nylon bolt for more strength.

Got the trailing edge cap on the wing and really had to use my imagination to figure out how to do it. As indicated, the TE wandered a little as you looked across it. It and moved some as soon as I took it off of the building board. It was straight while pinned down, but you know how balsa is, it sprung just a little when it was removed. I got even though, I pinned the wing back to the board (see the pictures) with the TE hanging over the edge of the board about 1 to 1 1/2 inches. This allowed me to have a solid hold on the wing and place it vertical when I sanded the entire length of the TE to get it straight. And it lined up the few ribs that were a little off center. I epoxied the TE in place using 30 minute epoxy. This gave me the time I needed to go along the TE and tape the cap in place. As luck would have it, the kit comes with 2 TE cap pieces of stock and both were a little warped. I used the one with the least amount of curve, and taped it in place, ensuring that I had both the bottom and top covered. (see pics) Finally, after it was dry, I had the fun job of sanding, sanding, turning the wing over and sanding some more. Then when I thought I was done I sanded some more. I can attest to the fact now, when you look down the trailing edge, it is as straight as I can make it. (Looks nice)

I am now finished for today. Not only tired of sanding, but am waiting for some filler to dry where a hole in the sheeting on the trailing edge was. When it dries, I just need to do some finish sanding and then it is on to the wing tips. I figure that should be done by tomorrow. If I make it, I will have finished the top wing (including first time through sanding) in just 8 days. I doubt if I can keep up this pace, but only time will tell. Here are the latest photos:
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