Attach The Rudder; Install The Rudder Servo(S) - GREAT PLANES Matt Chapman Cap 580 Instruction Manual

Attach the Rudder

1. Mark the rudder 2-1/4" [57mm] from the bottom and
3/8" [9.5mm] from the LE. Drill a 9/64" [3.6mm] hole through
the rudder. Be certain to drill perpendicular to the centerline
of the rudder.
2. Mount the rudder control horns as shown, using the
remaining uncut 4" bolt.
3. Hinge the rudder using the same procedure used on
the stabs and wings. Note: don't forget to oil the pivot point
of each hinge.
4. Attach the tail gear arm to the tail gear with the two springs.

Install the Rudder Servo(s)

RUDDER SERVO OPTIONS: The large size of the rudder
on the Giant CAP 580 requires a lot of servo torque. Our
testing shows that less than 300 ounce inches of servo
power results in rudder "blow back" during certain
maneuvers. We have three recommendations to provide
adequate performance:
A. The instructions are written for two quarter-scale
Futaba S5050 servos. This is the recommended setup.
B. It is possible to use standard size high-torque servos
ganged together. There are two servo openings on
either side of the fuse for standard size servos. A 150+
oz/in standard size servo can be installed on either
side of the fuse. Two 2" [50mm] servo arms will need to
be purchased.
C. Four standard size high torque servos (with a total of 300+
oz/in torque) can be used. This is the least recommended
of the setups, and will require the modeler to modify the
model to install the 4 servos.
1. Install the two giant-scale servos with the hardware
provided with the servos. (We used Futaba S5050 servos in
our models.)
2. Remove the covering from the pushrod exits on both
sides of the fuse.
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