Top Flite TOPA0135 - Manual (Page 27)

❏ 3. Position the engine so the Drive Washer is
6-1/4" (159mm) from the aft edge of the engine
mount. Mark, drill (#29 drill bit) and tap the engine
mounting holes to accept the 8-32 x 1" Socket
Head Cap Screws included with this kit.
❏ 4. Test fit the engine to the mount with the 8-32
screws. Remove the mount from the firewall, then
test fit the firewall to the fuselage as shown in the
plans. Make adjustments to the notches in the
firewall if necessary.
❏ 5. If you are using a Great Planes 14 oz. fuel
tank, drill the holes in the firewall for the fuel lines
now. Drill a 7/32" hole in the center of the firewall
1-7/8" up from the bottom and another 7/32" hole
1" above the first.
❏ 6. Make sure the back surface of the firewall
fully contacts the crutches, tank roof and tank
floor. Use 30-minute epoxy and C-clamps to glue
the firewall in position.
❏ 7. After the epoxy cures, remove the C-clamps
and apply a fillet of 30-minute epoxy on both
sides of F-1 all the way around the tank roof and
tank floor and the right and left crutches. Make
sure the crutches are glued to the tank roof and
floors as well.
INSTALL SERVO TRAY
❏ 1. Test fit your servos in the die-cut 1/8" plywood
Servo Tray and make sure the spacing is correct.
Make adjustments if required. Cut two 1/4" x 4-1/4"
strips from leftover 1/8" lite plywood. These strips
should be positioned on servo tray so that the
servo screws will screw through the center of them.
Glue the strips to the servo tray.
❏ 2. Glue the servo tray to the crutches and former
F-3 with the 1/4" strips on the underside of the
servo tray.
Regroup, clean off the workbench and grab the
wing plans!
FUSELAGE CONSTRUCTION NOTES:
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