Hello All,
Just a few ideas from my experience of assembling the fuselage.
When making your dummy spar, make the end approx. 3 inches longer.
Use this extension to drill the pivot bolt locations, so your dummy
will have 3 holes in it. Drill the pivot 1/4" hole & the two spar pin
holes on a drill press to get them accurate, this will act as a
drilling guide to drill square.
1. First use the dummy spar to Redux in the two spar pin bushes.
2. When these have set. Use the pivot bolt hole in the extension to
align the pivot brackets on the seat module.
3. Next use the same dummy again to drill the pivot bolt holes in the
spars. Using the one dummy, all holes will be in the correct place
and accurate.
But don't forget to turn the dummy over when drilling the spars to
get the holes nearest the top side of the spar & correct way up for
seat module brackets.
4. Next remove the extension & shape tip to normal profile & use
to affix both sockets in position on seat module & port spar aft
face.
5. When Reduxing on the socket to port spar, a small O-ring between
the bush & socket will prevent Redux sticking the wing pin in.
That (filling) subject again :-)
After sanding down filler, small scratches are still evident. I found
that mixing up Ampreg & adding a very small amount of filler &
squeegeeing on surface it fills the scratches.
75 grams of Ampreg mix plus about one dessert spoonful of Fairlite
filler will be enough for one side of the wing, it also hardens the
surface which can be wet rubbed if you wish.
Much better & cheaper than trying to fill scratches with primer.
Happy building.
John Baker #181
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