Great Planes Super Chipmunk ARF - GPMA1303 - Manual (Page 14)

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3. Roughen the stab fairing as shown with 80-grit sandpaper.
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4. Apply 6-minute epoxy to the stab fairing where you have
roughened the surface and to the root rib of the stab. Slide the
stab and stab joiner tubes into the fuselage, pressing the stab
firmly to the fuselage. Clean any excess epoxy with rubbing
alcohol and a paper towel. Apply masking tape to hold the stab
in place until the glue has hardened. Important! When installing
the stab, be sure the plywood plates on the elevator are on the
bottom of the plane.
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5. Hinge the rudder to the vertical fin using the same
technique used on the ailerons and elevators.
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1. Cut the engine template from page 29 of the
instruction manual. Tape the template onto the firewall
aligning the dashed lines of the template with lines molded
on the firewall.
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2. Drill 7/32" [5.6mm] holes through the firewall at each
of the drilling locations on the template. Install four 8-32
blind nuts into the backside of the firewall. This is easily
done by reaching into the fuselage, holding the blind nut
over the hole you drilled, and then using a 8-32 x1" [25mm]
socket head cap screw and #8 washer from your hardware
to pull the blind nut into the hole.
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3. Cut the tabs from the engine mount. Attach it to the
firewall with four 8-32 x 1-1/4" [32mm] socket head cap
screws, #8 lock washers and #8 flat washers. Before
tightening the bolts, set the engine on the mounting rails and
adjust them to fit the engine. Then, tighten the bolts.
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4. Position the engine on the mount so the distance from
the firewall to the front of the thrust washer measures 6-3/8"
[162mm]. Mark the location of the engine on the mount. The
Install the Engine, Fuel Tank &
Throttle Servo
14