Rudder And Rudder Servo Installation - Hangar 9 85cc Sukhoi SU-26MM Assembly Manual

Rudder and Rudder Servo Installation

Required Parts
• Control horn (2)
• Rudder
• Removable hinge pin
• Tail wheel assembly
• 4-40 x 4-40 ball end w/hardware (2)
1
• 4 / -inch (114mm) linkage
2
• #6 x 5/8-inch socket head sheet metal screws (2)
• #4 x 1/2-inch socket head sheet metal screws (2)
Required Tools and Adhesives
• Thin CA
• Drill bit: 5/64-inch (2mm), 3/32-inch (2.5mm)
• Hex wrench: 3/32-inch, 7/64-inch
• Nut driver: 1/4-inch
1
• 1 / -inch Single Side Alum Adj. Spline Servo Arm
2
Note: When using a servo with less than
300 oz/in of torque, it is highly recommended
to use two rudder servos and link them
together using a JR MatchBox
servo location on the opposite side of the
fuselage will require the removal of the
covering to install your second servo.

Step 1
Attach a 36-inch (915mm) servo extension to the rudder
servo. Secure the extension using a commercially
available connector, heat shrink tubing or string so it will
not unplug inside the fuselage.
• Steering spring (2)
• Fuselage
• Tiller arm
• Drill
™ . An additional

Step 2
Assemble the rudder linkage using a 4
linkage, ball end and control horn. The control horn is
then threaded on the control horn screw so the bottom of
the horn is 5/8-inch (16mm) from the control surface.

Step 3
Attach the rudder to the fin/fuselage using the hinge pin
located in the hinges.
Hint: Use a drill to aid in installing
the hinge wire. This will help guide the
wire through each of the hinges
Note: The tail gear will keep the rudder
hinge in position. You will need to trim the
removable hinge pin so it is 1/4-inch (4mm)
above the tail gear when it has been installed.
1
/ -inch (114mm)
2
13