.
31. Use 5-minute epoxy to now glue the 5/16" dia. piece of drilled dowel into the two holes at the rear of the center section.
The hole in the dowel must line up with the hole in the 1/8" ply wing bolt plate in the fuselage. Remove the center section
from the fuselage and use an 8-32 tap to thread the hole in the wing bolt plate (make sure to angle the tap to match the top
curvature of the airfoiled center section). Use thin CA glue to harden the threads and re-tap them. Test the threads with the
8-32 nylon bolt in your kit.
When the epoxy has set, use a sanding
block to sand the dowel smooth with the
top and bottom surfaces of the center
section. Mount the center section in
place onto the fuselage and test the
wing bolt. Make any adjustments
necessary to create a good fit. Remove
the center section from the fuselage.
32.
From your kit, locate the shaped center section leading edge balsa block
(5/16"x3/4"x1-5/16"x2"). Lightly sand the sides of this block until it fits between
easily between the fuselage sides, up against F-4. The fit should be snug, without
being forced in place. With the block in place, use a pencil to mark the wing
dowel holes onto the backside of the block, through F-4. Remove the block and
use your Dremel Tool and small grinding bit to relieve the two hole locations,
allowing the wing dowels to clear when the center section is in place. Test the fit
of the block with the center section in place. The leading edge block is now glued
in place.
33.
Mount the wing center section to the fuselage and use your sanding block to lightly sand the leading edge block smooth,
matching its shape to the fuselage sides at the front and its top surface smooth with the leading edge of the center section.
Don't worry about final sanding at this stage, just sand the parts to match. Remove the completed center section and set it
aside for wing assembly.
34.
Without using glue, fit former F-7 in
place at the rear of the fuselage - use a
little tape or a clamp to keep the
fuselage sides firmly against the sides
of F-7. Use a double-sided sanding
block (a simple piece of scrap 1/16" ply
or hard balsa sheet with 220 sandpaper
on both sides works perfectly) to sand
the rear fuselage longerons uniformly,
allowing the two fuselage sides to
touch.
Once the longerons are sanded, remove F-7. Mix a small amount of 5-minute epoxy and carefully glue F-7 in place to one
of the fuselage sides. Apply glue sparingly to the sanded top and bottom longerons, the very end of the fuselage side and
to the opposite side of F-7. Pull the fuselage sides together, fitting F-7 in place and holding the two fuselage sides together
squarely at the very rear. Use a little tape or a simple clamp to hold the structure together and allow the glue to set.
35.
In this step you will install the two female rudder and elevator pushrod tubes. The
technique is easy if you follow these instructions. First, note that these two tubes
extend into the servo compartment about 1". They pass through the laser-cut
holes in F-6, back through the fuselage, through F-7 and exit through the laser
cut holes in the rear of each fuselage side, just beneath the stabilizer. The nice
thing about this set-up is that the tubes are anchored, inside the rear of the
fuselage, at each upright and diagonal brace, immediately behind the top 1/16"
stringer. This makes them virtually invisible when you choose to cover this open
area with transparent coverings.
Содержание SIGRC80 Rascal C
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