11.
If you do not have a fuselage “jig” try this. Draw a 48” line on your bench. Set
F-3 – F-4 over this line (centered). Block the fuselage at F-3 and F-4 so it won’t
move. Pin the ends together. Use the 90
°
square to align the ends over the line,
being sure that the ends are also straight up and down. Glue.
12.
Join the front end at F-2 the same.
13.
Install F-1 to the 1/4” ply motor part at 90
°
. Use a support to insure the angle.
14.
Install this assembly to the bottom of the 1/2” x 1-1/16” x 6-5/16” piece. (Be sure
the extra piece of 1/4” x 3/4” x ply is installed under the motor mount. See side
view.)
15.
Install a 1/2” x 1/2” x 6-5/16” piece of balsa under the motor mount against the
sides. (Not shown.)
16.
Install fuel tank floor and cockpit floor. (The balance of assembly is pretty
obvious. Only helpful hints will be listed hereafter.)
A.
The nose cowl should be assembled in place except for the 3/32” planking
which is installed in two stages. Between F-2A and F-3A and then
between F-1A and F-2A. Wet the balsa when bending around the
bulkheads. (Pick super soft balsa for this step.) Cowl is held in place with
screws thru hard wood blocks located at F-1 and F-3.
B.
The fuselage ends including the tail post should be 1/2” wide, which
equals the thickness of the rudder.
C.
After you have glued the 1/8” balsa front end of the sides to F-1, notice
that the balsa edge is not straight. Sand this straight. Add a piece of 1/4”
balsa to the inside of this balsa side area to provide additional gluing area
for the nose blocks.
TAIL FEATHERS
1.
Decide now what size engine you intend to use. If it is larger than 1.8 cu. in. you
best plan on reinforcing. Consider sheeting the surfaces and bracing them or
adding triangles under and over the horizontal stabilizer to provide more gluing
surface.
2.
This part is elementary so we leave you to this simple task. Use large DuBro
cotter pin type hinges. Secure with toothpicks. (Be sure and use stiff hard balsa
for the stab spars. See plans.)
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