
9
Section 2: Installing the Aileron Servos
Step 1.
Locate the servo opening in the bottom of one of each
of the wing halves. Use a sharp knife to trim away the covering
over the openings. Use care not to cut away too much covering.
Step 2.
Install the recommended servo hardware supplied with
your radio system onto the servos you will use for the Cub
(grommets and eyelets). Install a servo extension lead to each of
the aileron servos as well (an 18” extension is recommended).
Secure the connectors with either masking tape or a commercial-
ly available connector that prevents the servo lead connectors
from becoming disconnected.
Hint:
It’s always a good idea to tape or secure the servo
connectors and servo extension together to prevent the
wires from becoming unplugged while inside the wing.
Step 3.
Trial fit the wood servo blocks into the servo opening.
You will mount these with epoxy after you have made sure they
fit and that the servo will fit into the space.
Some material will have to be removed inside the servo opening to
make room for the servo lead at two locations. Make sure there is
room for the servo lead to go into the round hole made for it to pass
into the wing. Second, you will need to trim the area of the wood
servo block so the servo wire exiting from the servo case is not
crimped as it passes around or under the servo to the servo lead exit.
• Right/left wing panels
• Standard size servos with mounting hardware (2)
.
Note:
JRS 531 servos (or equivalent) are recommended.
• Servo extension (18”) (2)
• Wood servo blocks (4)
• Hobby knife with #11 blade
• 6-minute epoxy
• Medium Phillips screwdriver
• Rubbing alcohol
• Drill
• Paper towels
• Drill bit: 1/16”
• Epoxy brush
• Felt-tipped pen or pencil
• Masking tape
• String (24”) with a small weight on end
Parts Needed
Tools and Adhesives Needed