Top Flite TOPA0220 - Manual (Page 34)

❏ ❏ 3. Drill a 1/16" [1.6mm] hole through the servo
hatch into each servo mount block. Countersink the
hole and install a #2 x 3/8" [9.5mm] flat head sheet
metal screw.
❏ ❏ 4. Mount the aileron servo hatch back onto the
wing. The wire will be connected after the flap servo
is mounted.
❏ ❏ 5. Make an aileron control rod from a nylon
clevis, clevis retainer and .074" x 6" [1.6 x 152mm]
threaded on one end rod. Thread the clevis on about
15 turns.
Note: The photo above shows the control rod after
the Z-bend is made in step 7.
❏ ❏ 6. Mount a small nylon control horn to the ply
control horn mount on the aileron with two 2-56 x
1/2" [12.7mm] screws and the nylon backing plate.
Use a 5/64" [2mm] drill for the holes.
❏ ❏ 7. Connect the clevis on the control rod to the
control horn and mount the aileron on the wing with
the hinges. With the aileron centered and the servo
arm at 90 degrees to the servo, make a Z-bend in the
control rod where it will connect to the servo arm.
Connect the control rod to the servo arm.
Note: You can also use an L-bend and one of the
supplied Faslink nylon keepers.
❏ 8. Return to step one for the other aileron.
In the following steps you will mount the flap servo.
It is important that the servo linkage be mounted in
the exact position shown on the plan as there is very
little clearance with the servos and pushrods
mounted in the fuselage. Use the flap servo
mounting template on the plan as a guide in
positioning the servo.
The flap servo should be installed on the left side as
the flap joiner pivot arm is offset to the left. If you are
installing electric power you MUST use a mini-servo
for the flaps as a full size servo would extend into
the battery compartment in the wing belly pan.
The fuselage bottom sheeting has not yet been
installed. This allows you to mount the wing and
check clearance with the servo and pushrods.
❏ 9. Cut two servo rails to a length of 5-1/8"
[130.2mm] from the leftover 1/4" x 3/8" [6.4 x 9.5mm]
basswood stick. Make a mark at the center of each
rail. Make another mark on the left side of the center
mark where the inside edge of your servo will be. For
our full size servo, the marks are 3/8" [9.5mm] to the
side of the center mark. Position your servo on each
rail and mark the location of the required mounting
holes. Drill 1/16" [1.6mm] holes at these points.
Harden the holes with a drop of thin CA.
Note: Remember, it is important that the flap
linkages be placed in the correct location.
-34-