Balsa Taube 40 Assembly Manual - page 17
48.) This is going to be a tough step. Use a nickel to draw a circle
around the wing bolt holes. Now cut the wing sheeting out to the
lines to allow the wing bolts to pass through.
49.) Sand just the back facing side of the laminated F-3A formers
at the angle shown above so the top deck sheeting will lay flat
against it. Now, sand the front facing side of the laminated F-3A
former at a slight angle so it will match up with former F-2B.
50.) Fit the diecut 1/64” plywood forward top deck sheeting in
place. You will have to let the leading edge of the wing hang over
the building board so the forward portion of the deck will clear.
There will be some overhang on the front of the deck sheeting.
Trim as necessary so the deck sheeting fits both the wing and fits
snug around both formers. When satisfied with the fit, hold the
sheeting in place and draw a line on the sheeting around former F-
3A at the aft end. Place another line 1/8” forward of the line you
just marked on the sheeting. Using a scissors, cut the sheeting
along the new line so it will end at the back edge of the forward
part of the former F-3A laminate. Leave the aft portion of the
laminated former uncovered so there will be room for the rear
cockpit sheeting.
51.) Holding the sheeting in place, place a pin both fore and aft
through the sheeting and into the formers on the center of the
model. (We will use the laminating technique as has been done
several times before to aid in this step.) Lift the sheeting up
slightly leaving the pins in place. Apply a small bead of thick CA
to the 3/16” square strips where the sheeting will touch, but stop
short of the formers by about 1/4”. Push the sheeting down on the
pins, wrap it around the formers and hold it against the 3/16”
gluing strips until the CA cures. It is important that you bend the
sheeting around the formers. If you just push it down without
bending it around the formers you will form a “hump” on each
side of the centerline in the sheeting.
52.) Finish gluing the sheeting in place. It is easier to glue down
one side at a time. When finished, carefully trim the front of the
sheeting and block sand it flush with the front former.
CAUTION: Sand only using downward strokes from the
plywood down to the former. If you sand using an up stroke you
will delaminate the plywood on the edges.
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