Remove the two completed frames from your work
surface and again use your sanding block to lightly
sand both sides of the newly completed frame. Pin
and tape the two frames together and use your san-
ding block to make sure they are identical. From
your kit box locate the three 1/4" x 1" x 3-5/8" plywood
blocks, the two 1/8" I. D. x 3-3/4" brass carbane moun-
ting tubes and the two slotted 1/4" x 5/8" x 3-5/8"
cabane trunnion blocks. Use sandpaperto rough-up
the two lengths of brass tubing and epoxy them into
the slots of the cabane trunnion blocks, being sure
to center them. Use at least 1-hour-type epoxy for
this job.
Carefully position the two fuselage frames, upside
down, over the top view of the plans. Block and/or pin
as needed to hold them in place at right angles to
your work surface. Take two of the 1/4" x 1" x 3-5/8"
ply blocks and epoxy them in place in the cut-outs
provided at the forward end of F-5. Epoxy the third
1/4" x 1" x 3-5/8" ply block into the slots at the rear of
F-5, in the wing saddle. From the hardwood parts
bag locate the 1/8" x 1" x 3-1/8" ply F-7. Touch-up the
ends of this part to fit nicely between the F-5's, at the
very leading edge. Epoxy F-7 in place. Allow the
epoxy to cure before removing structure from your
work surface.
With the structure upright, epoxy the two cabane
trunnion blocks, tubes already installed, in place in
the gaps provided in the top spruce longerons. Use a
slower curing epoxy (1-3 hour type) to give you the
time to ensure that the structure, thus far, is truly
square. While waiting for the glue to cure, measure
and cut the six required identical lengths of 1/4" x
1/2" balsa top and bottom cross braces and the three
also identical lengths of 1/4" sq. spruce top and bot-
tom cross braces. Again, all nine of these cross
braces are of identical length to fit exactly between
the fuselage frames. Starting at the top front of the
fuselage, glue all five of the top 1/4" x 1/2" cross
braces in place, back to and including Section C-C
(the plans show 1/4" sq. material at this point,
disregard and install the 1/4" x 1/2" brace). Behind
Section C-C, at the location of the first vertical 1/4"
spruce upright, glue one of the 1/4" sq. spruce cross
braces in place. Turn the fuselage over and glue the
remaining 1/4" x 1/2" cross brace in place at Section
B-B and the remaining two 1/4" sq. spruce cross
braces at Section C-C and at the location of the first
vertical upright. Useyoursanding block to lightly go
over all four sides of this structure.
9. While we still have relatively good access to the in-
side of the fuselage, now is the time to drill the re-
quired 1/4" dia. hole through F-7 and into the /owe/-
wing's center section. Accurately pin and/or tape
the center section into the wing saddle. Use a 1/4"
drill bit and electric drill to drill a hole through F-7,
the leading edge and the forward W-11 dihedral
brace. Remove the center section and set it aside for
now.
10. From your kit box, locate the 1/4" x 3 - 3 / 8 " x 3-3/4" ply
firewall, the four 4-40 blind mounting nuts and the
four 4-40 x 7/8" R.H. bolts. You will also need the
9
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