"Cloudster" Construction Project Session #36
four remaining tip ribs were glued in place over the relatively hard 3/32" X
1/4" balsa bottom spar. A medium 3/32" X 1/4" balsa strip was chosen for the
top spar because it has to curve down out at the tip. Actually, the top spar
was beveled and glued to the tip unit first before it was bent to shape as
The wing's inner was pinned down over
the plans and wing's tip panel was jigged up such that the tip was elevated
off of the plan 2.85". A trial clamped fit was made without gluing to check
the set up as shown below.
Notice the steel square with the plywood
clamped to it at the right. This will be 2.85" jig brace placed under the
wing tip when the two panels are glued together. A measurement check was
made of the tip's elevation with a metal scale as shown below.
In this close up, you can see that the
bottom of the wing tip is elevated exactly 2.85".
In the picture below, the right wing's
inner and tip panels have been glued and clamped together with the 2.85" jig
brace supporting the wing tip. This will be left to dry overnight. Then the
two temporary polyhedral ribs will be removed so that the main spars can be
braced and the polyhedral joint completed.............................Tandy
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