User Manual

ELEVATOR SERVO AND CONTROL ROD INSTALLATION
Before you make the control rod please take into consideration that the overall length of the control rod
needs to be approximately 555mm.
Install the elevator servo in the rearmost servo tray with the output arm at the rear. To make the elevator control
push rod, take the 420mm carbon rod and 2 x 130mm metal rods which have to be fitted into the carbon rod. This is
done by putting a right angle bend on the unthreaded end of the 130mm rod. Next drill a hole in one side of the
carbon rod approximately 35mm from the end. Pass the rod through the middle of the carbon tube so the right angle
bend pokes out of the hole. You may need to file the end down so you are able to pass it through the carbon tube.
Then push the supplied balsa dowls down the centre of the carbon tube to wedge the control rod in place. When
happy glue in place with some thin cyano. Repeat procedure for both ends but ensure that with both ends fitted and
the clevises attached the complete push rod assembly is approximately 555mm long from the clevis attachment
points. It may be necessary to cut down the carbon rod before the control rods are fitted in order to achieve the
correct length. Install the elevator control horn onto the elevator using 1 x control horn, 1 x backing plate and 2 x
15mm screws ensuring that the clevis attachment point is positioned over the hinge line of the control surface and
the horn is offset to clear the carbon rod from the fin post. Once installed position the servo and the elevator in the
neutral position. Install the elevator push rod adjusting the clevises so as to achieve the neutral position of both the
servo and the elevator making sure that the control rod does not bind against the fin post.
555mm
35mm
drill hole
Servo installed with servo
arm rearmost.
Holes drilled and control rods bent ready to be inserted