Great Planes Ultra Sport 40 Kit - GPMA0410 - Manual (Page 21)

between the tail filler and the rear of F-4, along the
bottom inside of both fuse sides. Glue in place.
11. Sand the aft ends of the balsa triangle to a taper,
which will permit the fuse sides to be pulled together at
the aft end. NOTE: The taper shown in the photo is
approximate and may have to be modified during assem-
bly.
together: Fuse top assembly, fuse sides, die-cut 1/8" ply
F-2, F-3, F-4 and the die-cut 1/8" ply Chin Block Base.
Check the fit of all parts and trim, file or sand as necessary
for a good fit. Pull the aft ends of the fuse sides together
and re-sand the 1/4" triangles if necessary.
5. Once you have everything fitting properly, re-
ASSEMBLE LOWER FUSELAGE
1. Tape the fuselage plan to your workbench and
cover the Fuse Bottom View with waxed paper.
assemble the above parts, using clamps, pins, tape and
weights to hold everything together and flat on the
workbench. Make sure F-2 is pushed as far forward
as possible, and F-4 is pushed as far aft as possible.
There should be waxed paper underneath to prevent
gluing the fuse to the plan. Apply med. or thin CA glue
to the joints, then follow with thick CA glue in any joints
that are not tight fitting.
2. Accurately position the die-cut 1/8" ply fuse
top front and the die-cut 1/8" balsa fuse top rear on the
plan. Glue these two parts together by applying thin CA
glue, then follow with thick CA.
3. Glue F-5 and F-6 to the fuse top, positioning
them in the rear of the slots and using a draftsman's
triangle or carpenter's square to set the formers perpen-
dicular to the fuse top.
NOTE: The fuselage is assembled upside down.
4. Trial fit (do not glue) the following parts
6. Find the 1/4" ply wing hold-down block and
trial fit it into the notches in the fuse side doublers,
sanding as necessary for a good fit. Glue the hold-down
block in place securely, using 30-minute epoxy, then cut
pieces of 1/4" balsa triangle and glue them in place above
and below the hold-down block. Sand the triangles flush
with the wing saddle.
7. Before installing the firewall (F-l), drill F-1 for
your engine mount and install the 6-32 blind nuts. If you
will be using the engine mount supplied in the kit, you
may cut out the F-l drawing from the plans, tape it to
21
BLIND NUT