Top-flite TOPA0135 User Manual download pdf (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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Top-flite TOPA0135 User Manual Page 27