Once you have the horn properly located, mark the location of the
two control horn mounting holes onto the rudder. Drill a 1/16" dia.
hole completely through the rudder at each mark. Mount the
control horn in place with the Nylon Retainer Plate and two
M2 x 15mm Phillips-Head Bolts.
❑
3) The rudder pushrod consists of a wire rod with threads and
an adjustable R/C Link on one end, and a pre-formed "z-bend" on
the other end.
a) Install the z-bend end of the pushrod into the outer hole of
the rudder servo output arm. Note: The hole in the servo output
arm may be a little too tight. If necessary, drill out the holes in the
arm with a 5/64" dia. or #50 (.070") drill bit.
b) Install the servo arm and pushrod onto the servo, making
sure it is accurately centered in neutral position.
c) Clip the R/C Link into the control horn. Check the rudder
for neutral position, adjusting the overall length of the pushrod by
screwing the R/C Link in or out as needed to get the rudder in
neutral position when the servo is in neutral position.
SAFETY NOTE: Cut and fit a short length (about 3/16" or so) of
fuel tubing (not furnished) onto the R/C Link to prevent it from
opening and coming off the control horn in flight.
RADIO INSTALLATION, PART III: Throttle Pushrod
For the following steps you will need these parts:
• The fuselage assembly
• 1 - 1/8" od x 12-1/2" Plastic Pushrod Tube
• 1 - 3/16" od x 11-3/8" Plastic Pushrod Sleeve
• 2 - M2 x 7/8" long Threaded Studs
• 2 - Metal R/C Links
• 1 - Plywood Pushrod Support
• 1 - Throttle Servo (not supplied)
The following instructions describe installation of the throttle
pushrod components that are included in this kit with the YS-63
engine that we used. This pushrod system should be adaptable to
most 4-stroke or 2-stroke single cylinder glow engines. There may
be some engine installations that require a slightly different
pushrod arrangement and additional materials (not supplied).
Take a few minutes to study your engine installation and develope
a plan on how you can best route your throttle pushrod from the
engine, through the firewall, around the fuel tank, and back to the
throttle servo.
❑
1) Drill a 3/16"-7/32" dia. hole through the firewall, aligned with
the engine's carburetor throttle arm. From the front, insert the
3/16" od x 11-3/8" long Plastic Pushrod Sleeve through the firewall
12
mark the location of the two control horn mounting holes onto the
elevator. Drill a 1/16" dia. hole completely through the elevator at
each mark. Mount the control horn in place with the Nylon Retainer
Plate on the top side of the elevator and two M2 x 15mm Phillips-
Head Bolts.
❑
3) The elevator pushrod consists of a wire rod with threads and
an adjustable R/C Link on one end, and a pre-formed "z-bend" on
the other end.
a) Install the z-bend end of the pushrod into the outer hole of
the elevator servo output arm. Note: The hole in the servo output
arm may be a little too tight. If necessary, drill out the holes in the
arm with a 5/64" dia. or #50 (.070") drill bit.
b) Install the servo arm and pushrod onto the servo, making
sure it is accurately centered in neutral position.
c) Clip the R/C Link into the control horn. Check the elevator
for neutral position, adjusting the overall length of the pushrod by
screwing the R/C Link in or out as needed to get the elevator in
neutral position when the servo is in neutral position.
SAFETY NOTE: Cut and fit a short length (about 3/16" or so) of
medium diameter fuel tubing (not furnished) onto the R/C Link to
prevent it from opening and coming off the control horn in flight.
RADIO INSTALLATION, PART II: Rudder
For the following steps you will need these parts:
• The fuselage assembly
• 1 - Nylon Control Horn and Retainer Plate
• 2 - M2 x 15mm Phillips-Head Bolts
• 1 - Wire Rudder Pushrod
• 1 - Metal R/C Link
• 1 - Rudder Servo (not supplied)
• 1 - 12" Servo Extension Chord (not supplied)
❑
1) Plug a 12" long servo extension chord onto the end of the
rudder servo wire. Secure well with tape. Poke the free end of the
extended servo wire through the rudder servo mount in the rear of
the fuselage. Hold the fuselage vertically, nose down, as you pass
the servo wire all the way forward to the radio compartment. Once
you have the wire completely inside, install the rudder servo in the
fuselage using the using the rubber grommets and screws that
came with the servo.
❑
2) Mount a control horn on the RIGHT SIDE OF THE RUDDER.
Locate the horn directly in line with the outermost hole of the
rudder servo arm. The front edge of the horn's base should be
located right at the front edge of the rudder's leading edge bevel.