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Old 08-17-2016 | 09:37 PM
  #20  
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mgnostic
 
Joined: Jan 2003
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From: Kamay, TX
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I didn't accomplish a lot of dramatic stuff today but the wings are mostly sheeted and capstripped now, I just had to stack the wings and fuselage to see how it would look. The leading edges aren't shaped yet and the saddle for the stabilizer isn't installed either but you get an idea of the shape. Even in the bare bones it has a robust quality to it.

In the first picture you can see where I have added structure for the ailerons. I used the same one inch by one-sixteenth sheet as was used in the trailing edges. There is no shaped trailing edge stock used in the kit as designed. The trailing edge is just a one inch wide strip above and below the aft end of the rib. It is lightweight and as long as you aren't cutting ailerons or flaps out of it, it seems just fine. Where I see it as a problem is that if building a stock kit, i don't think the trailing edge would hold up very well under a stack of number 64 rubber bands. Since I am building a bolt on wing I simply filled in the area between the upper and lower trailing edge with some shaped trailing edge stock. I did this to the two inner rib bays. This should firm up the area

I did this on both the upper and lower wing. Reaching a point where I can mock up the wings was satisfying but it brings to light a couple of issues. One glaring item is that the upper wing just sort of sits on top of the fuselage. There is a step from the trailing edge the top of the fuselage. I expect that I will build up the top edge of the F-10 former that forms the aft wall of the cockpit and then use some balsa to fair the stingers so that it is all even with the trailing edge of the wing. The manual only shows one photo of what is supposedly the completed model. There is little if any dihedral in the model in the photo, certainly way less than the model would have if built according to plan. It is a very grainy photo but it shows the wing fairing smoothly into the fuselage and although there are rubber bands on the wing you can't see any parting line between the wing and fuselage. It looks to be all of a piece, possibly a U/C model? At any rate, next step for the wings include fabricating servo mounts in the upper wing and mounting the tabs for the wing struts. When those are in place I can do the last few capstrips. Before I called it a night I took a moment to mock up one of the wing struts. In profile they look good but they are made such that the strut and the fairing just stack one on top of the other and then bold through the wing strut tab. The whole strut assembly is made from the heavy three ply. I kind of suspect that in practice one would have not flown with the struts, If one were to drag the tip of the rubber band mounted wing I imagine the weakest link would be the balsa wing rib. Since I have been making some running changes to this kit anyway I think I will probably work over the strut design so they are more aesthetically pleasing and possibly a few grams lighter.
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