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Old 08-18-2005 | 03:12 AM
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somegeek
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From: Vancouver, WA
Default RE: Sig LT-40 Build

Thanks all for the words of encouragement.

This was a very cool step... sanded the left wing panel W1 face so all was flat and then glued in the main dihedral braces. A set of small C-clamps, some scraps of wood and wax paper did a great job of clamping those pieces to the spars for a good bond. While that set, I sanded down the other W1 face and then cleaned up the wing tips. Was really neat to see the wing tips form as I sanded down the spars and edges. Time to join the wing came and after some preliminary fitting and sanding it looked like I was only going to get about 75% of the specified dihedral unless I did quite a bit of carving(will explain below). Figured that would just make the plane a little less forgiving so I will deal with it. Made sure the wing was lined up by standing it on it's leading edge on the counter and made sure the middle was all lined up and got to tacking in place with the CA and then clamped it up for the final gluing. Was cool to take all the clamps off and hold the finished product in my hand!



After that I moved onto the fuselage assembly. Used every rubber band in the pack I bought - the more the better I figured. Glued F1-3 & the fuel tank floor tonight. Added some weight to assure the sides bonded well with these three pieces.



This is something that confused me... the pre-cut dihedral guage had a curve to it on the side that contacted rib W1. The lower edge was less angled so the rear of rib W1(shorter) was less angled which contributed to the lesser overall angle of the dihedral that the joining surfaces created. Am I missing something here or should this guage be flat on that side?



I'm enjoying using the wood glue vs the CA. Used the CA on the wing joint and the partial fuselage assembly - stuff sucks with regard to the fumes bothering my eyes and the stank. Yuck...

Regarding the wing balancing... will this be done after I cover the wing? One side is slightly heavier than the other. A small plastic clothes pin on the end of the lighter side causes the wing to balance evenly on the dihedral.

somegeek

Total build time: 24 hours