the 50cc Electronics Installation here

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Electronics Installation Guide - 89” AJ Slick
*NOTICE*
This is only a recommended installation procedure for one set of electronics. Different types and
brands of electronics may require different procedures. This is just a guide to how we install the
Hitec HS-7955TG servos and Smart-Fly Power Expander and Optical Ignition Cutoff System.
This system uses two batteries, one for ignition and one for receiver power.
We are using the recommended Hitec servo setup accompanied by SWB Aluminum Servo Arms.
--3D Hobby Shop--
Pull-Pull Rudder Cable Installation
The pull-pull cables for the rudder are assembled as shown in the following diagram:
Approx. ½ threads
showing on pullwire ends.
3.5” SWB Servo
Arm Pictured
Install rudder servo as shown above. Install ball links, then attach and center servo arm.
Install rudder ball links. Insert all pull-wire ends with approx. ½ threads showing.
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Secure rudder in place using masking tape.
Assemble the pull-pull cables at the rudder in first, as shown.
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Rudder cables cross to form an “X” inside the fuselage.
Attach the pull-pull cable using the same technique as before.
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Adjust the lengths of the pull-pull cable to get good tension. Just snug, with no sag, and no play in the rudder.
“Banjo-string” tight pull-pull wires will not make your plane fly better, but they will wear out your servo.
When you are finished adjusting the pull-pull cables, apply thin CA glue to each of the crimps.
If using rear rudder servo mount, install servo and assemble linkage as seen in above picture.
Elevator Servo/Linkage Installation.
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Install the elevator servos as shown.
2” SWB Servo
Arm Pictured.
Use masking tape to
secure the elevator in
place while installing
servo linkages.
Center the servos, and slide your servo arms onto the servo output splines. Rotate the servos and
arms as necessary to access all fasteners to lock the arms in-place. Use threadlocker if indicated by
the servo arm manufacturer. We also use a dab of silicone adhesive on the servo arm screw to lock it
in place against vibration.
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Note: All pushrods have one lefthand thread and one right-hand
thread. You can easily adjust their
length after they are installed by
turning the center of the pushrod in
the desired direction.
Assemble the elevator pushrod as shown. The elevator pushrods are the shorter of the included
pushrods. The longer ones are for the ailerons and rudder (if rear location is used).
48” Elevator
Servo Extensions
Used.
The Slick includes a fiberglass tube installed into the fuselage to assist in cleanly routing your elevator
servo extensions into the rear of the fuselage. A pull-string is pre-installed to help pull your servo
extensions through the fiberglass tube.
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Pull both elevator extension wires through fiberglass tubes, and then out of the fuselage on the
respective sides. We suggest using your preferred method to secure the elevator connections to
prevent them from working loose.
Aileron Servo/Linkage Installation.
Remove the covering from the servo openings on the bottom of the wings.
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Attach an 12-18” extension to the aileron servo and secure the extension as before. A pull-string is
provided to help guide the extension through the wing.
Again use masking tape to secure the aileron in place while installing linkages.
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1.5”
SWB Servo
Arm Pictured.
Install the servo with the servo head toward the front of the airplane, and attach the pushrod as you did
on the elevator.
Aileron servo extension routing pictured above.
Radio and Electronics Installation
Mount your receiver on the tray located just aft of the wing tube.
If using a Smart Fly (or similar) power distribution system, adequate room is provided aft of the
wing tube.
We have provided switch locations for two full-size switches on each side of the fuselage.
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Smart Fly Pin/Flag
Switch Pictured.
As well as a 6mm holes for a Smart-Fly flag-style safety switch if desired.
Smart Fly Fiber-Optic Ignition Cutoff pictured above, mounted where desired in a convenient lactation.
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Receiver / Ignition battery notes:
Recommended receiver battery packs include but are not limited to:
-2300mAh - 6.6v LiFePO4 / A123
-2200mAH – 2600mAh 7.4v Lithium Polymer
-2200mAh – 2600mAh 7.4v Lithium Ion
Recommended ignition battery packs include but are not limited to:
-1200mAh – 2300 6.6v LiFePO4 / A123
-1200mAh – 2200 7.4v Lithium Polymer
-1200mAh – 2200 7.4v Lithium Ion
-Receiver and ignition battery packs are to be mounted where necessary
to obtain proper center of gravity (CG) location.
-Secure the receiver and ignition packs using provided Velcro straps.
Make sure batteries are secure and will not shift position or work free
during flight.
3D Hobby Shop wishes you the very best with your new 89” AJ SLICK!
FLY LOW!