Great Planes Giant Aeromaster Kit - GPMA0502 - Manual (Page 35)

D 1. Insert the cabanes into the slots in the front of the
fuselage. Secure them with 6-32 x 5/8" socket head bolts
and #6 washers. Use 6-32 x 1/2" socket head bolts, #6
washers and 6-32 lock nuts to attach the cabane cross
braces to the outside of the cabanes.
D 1. Remove the aileron servo hatch from the bottom wing.
Position the aileron servo on the hatch so that the servo
arm is centered in the hatch opening. Use 30-minute epoxy
to glue two 5/16" x 3/4" x 7/8" basswood servo mounting
blocks to the aileron servo hatch.
Note: Secure these blocks by first drilling several 1/16"
holes about 3/16" deep into the gluing surface. Roughen
the ply hatch where the epoxy will be applied. Pack epoxy
into the 1/16" holes before clamping the blocks in position.
D 2. When the epoxy has fully cured, fit a 1/32" to 1/16"
temporary shim between the servo and the plywood hatch.
Drill 1/16" pilot holes and mount the servo to the mounting
blocks. Then remove the shims.
D 3. Trim three of the four arms from a "cross" servo horn.
Install it on the servo. Reinstall the aileron servo hatch in
the bottom wing.
D 4. Thread two 4-40 metal clevises thirteen complete
turns onto two 4-40 x 12" threaded rods. Slide a silicone
clevis retainer over each clevis.
D 2. Cut four of the 1/4-20 nylon bolts to a length of 5/8".
Use them to mount the top wing to the cabanes. Tighten
the bolts just enough to hold the wing on, then trace around
the cabanes on the wing sheeting. Using a sharp hobby
knife, trim the wing sheeting to allow the cabane to seat
against the cabane mounting plate.
D 5. Attach a heavy duty control horn to the clevis. With the
pushrod aligned with the servo arm, position the control
horn on the aileron so that the clevis holes are aligned with
the aft part of the bevel. Mark the mounting holes and drill
7/64" holes through the aileron, then prick a few holes into
the wood under the horn's location. Apply a drop or two of
thin CA to the pin holes to strengthen the wood. When
cured, attach the control horn to the aileron with four 4-40 x
1" machine screws and the backing plate.
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