.
FUSELAGE CONSTRUCTION
Fuselage Subassemblies
Before starting the main part of the fuselage construction, there are four
subassemblies that should be built. This will avoid interruptions during the flow of
the fuselage construction.
NOTE: You need to have the engine that you will be using before proceeding.
20.
a. Mark the vertical center line and thrust line on the firewall (F1) using the
cross section on the plan as a guide.
b. Mark and sand the bevel on the bottom of the firewall to match the angle
shown on the plan.
c. Check the width of your engine and determine the spacing needed
between the motor mounts. Using the lines on the firewall, locate the
mounts, mark the location of the four holes on the firewall and drill an
11/64" hole at each mark.
d. Bolt the engine mounts loosely to the firewall with four 6-32 x 1" bolts and
6-32 blind nuts. Double check the location and spacing of the mounts.
Tighten the bolts until the prongs of the blind nuts are started into the wood
and holding. Remove the motor mounts from the firewall and seat the blind
nuts with a hammer. Spread SIG KWIK-SET epoxy glue over the blind nuts
to hold them in place. Be careful not to get any glue in the threads of the
blind nuts.
21.
a. Using the side view of the plans as a guide, position the engine on the mounts so the propeller will clear the fuselage
"cheeks" by 1/8" to a 1/4" and mark the engine mounting holes. Keep the engine as far back on the motor mounts as
possible.
b. Remove the motor mounts from the firewall and drill the holes for the engine mounting bolts.
c. Bolt the engine to the motor mounts, the motor mounts to the firewall and mark the location for the throttle push rod
to pass through the firewall. Allow clearance for the throttle pushrod connector included in the hardware package.
Drill a 9/64" hole at this mark for the outer housing of the flexible cable.
d. Remove the engine and motor mounts from the firewall.
22.
Using three 6-32 x1/2" mounting bolts and 6-32 blind nuts, bolt the aluminum gear to the landing gear plate until the prongs
of the blind nuts are in the plywood and holding. Remove the gear and seat the blind nuts with a hammer. Spread SIG
KWIK-SET epoxy glue over the blind nuts to hold them in place. Be careful not to get any glue in the threads of the blind
nuts.
23.
With the 1/4" holes in formers F-2 and F-
2D aligned, glue the two formers
together.
24.
Glue the laser cut lite-ply tailwheel
mount to the aft end of the fuselage
bottom rear (FBR).
