Great Planes Ultra Sport 40 Kit - GPMA0410 - Manual (Page 31)

CENTERLINE
razor plane and sanding block with coarse sandpaper to
sand the fuse bottom to the approximate shape as shown.
2. In the same manner, sand the top front block to
the approximate shape shown on the fuse plan side view.
3. Now sand the chin block, the top front block
corners and the nose side pieces to blend smoothly with
the spinner ring. Refer to the cross-section drawing of
F-1 and F-2 on the plan to get an idea of the desired
amount of rounding in the comers.
4. After the rough sanding has been completed,
temporarily re-mount your engine and slide on the spin-
ner backplate. You'll probably have to sand the edges of
the spinner ring down for a good match with the spinner
backplate.
5. Sand the bottom rear comers of the fuselage to a
slight radius as shown on the cross-sections of F-4, F-5
and F-6.
INSTALL WING FAIRINGS
You'll need the following parts: 5/8" x 2-1/2" x
3-7/16" balsa block, 3/8" x 2-5/8" x 3-5/8" balsa block,
3/16" x 2-5/8" x 3-3/4" balsa block, and the 7/8" x 3"
tapered balsa wedge.
3. Sand the aft edge of the 5/8" x 2-1/2" x 3-7/16"
balsa rear fairing block to an angle to match F-4, then
position it on top of the nylon bolls, centered between the
fuse sides. Push down on this block to make imprints of
the nylon bolt heads in the fairing block.
1. Mount the wing to the fuselage with the nylon
bolts.
4. Make holes in the fairing block large enough to
clear the heads of the nylon bolts.
2. Draw centerlines on all the blocks, then arrange
them as shown in the sketch. Draw straight lines along
the edges of the blocks as shown, and trim the blocks.
5. Again hold the fairing block in position, pushing
down to imprint the location of the 1/16" ply wing hold-
down plate on the fairing block. Carve the fairing block
to clear the wing hold-down plate
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