Install The Radio System, Purshrods, Control Horns & Tail Wheel - GREAT PLANES Super Chipmunk Instruction Manual

re-install the screw, screwing it into the hardwood. Be sure to
fuelproof the wood plates with epoxy or a good fuelproof paint.
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9. Cut out any other portions of the cowl as needed for
the needle valve, glow driver, muffler, etc. When positioning
the muffler it is important that the muffler exhaust not be
pointing directly at the fiberglass fuselage. The heat from the
muffler will discolor the fiberglass. For our model we
installed a muffler header from O.S. that allows additional
flexibility for positioning the muffler (O.S. Exhaust Header
Pipe OSMG2623). You can use this, route the muffler
directly out the side of the cowl or consider the silicone
diverters available for many engines. When you are finished,
put a couple of drops of thin CA into the cowl mounting
holes you drilled in the fuselage to harden the threads.
Install the cowl to the fuselage with #2 screws and #2
flat washers.
Did you know...Art flew airplanes for many well-known
movies and T.V. shows. The Great Waldo Pepper, Baa Baa
Black Sheep, Indiana Jones and the Temple of Doom and
Top Gun just to name a few!
Install the Radio System, Pushrods,
Control Horns & Tail Wheel
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1. Locate two .095 x 48" [1220mm] pushrod wires. Install a
4-40 nut, 4-40 threaded metal clevis and silicone clevis retainer
onto the threaded end of each wire. Install the clevis in the
second hole from the end of a large nylon control horn. Cut
6-1/2" [165mm] from the unthreaded end of the wires.
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2. Install the pushrod wires into the guide tubes on each
side of the fuselage. Position the control horn as shown. Drill
a 1/16" [1.6mm] hole into the plywood plate on each
elevator for the control horns. Do not drill through the
elevator, only the plywood plate! Install and then remove a
#2 x 1/2" [13mm] screw into each of the holes you drilled.
Apply a couple of drops of thin CA into the holes to harden
the threads. Once the glue has hardened, install the control
horns to the elevators with the screws.
Refer to this photo for the following two steps.
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3. Install a 6-32 x 1/4" [6mm] socket head cap screw into
two 3/16" [4.8mm] wheel collars, then slide the wheel collars
over both elevator pushrod wires.
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