4
Aileron servos:
Check that the servos you are going to use are in good condition, without any gear slop. Once fitted, servo
replacement is time-consuming job.
Carefully open the servo cables outlet in the wing bottom center. If necessary, use servo extensions for the
aileron servos. Cut-off the servo mounting flanges. Run the servo cables through the channels in wing. Push the
aileron servos into the openings in the wing (making sure they are snug fit). Glue in place with a bead of silicone
sealant and secure with adhesive tape over the top of the servos.
Install the horns in the ailerons: The horns must protrude
through
the aileron. Ensure the epoxy forms fillets in all
four corners of the horn
, so that the aileron is “clamped” in between!!!
Connect the horns with servo arms. The link from servo to aileron must be
without any play
, otherwise the
ailerons can flutter during the launch.
Recommended method: make the pushrods from 2 mm soft steel of aluminum wire. Bend about 4-5 mm of its
end in right angle and tap a M2 thread. Run M2 tap into the appropriate hole in the servo arm. Screw the rod
directly into the servo arm. Shorten the rod to appropriate length; tap a M2 thread and screw the clevis on. This
creates the perfect connection without any play.
The extension cable between wing exit connector and receiver can consist of 4-wires only, which divide into two
plugs to be pushed into the receiver. For example:
1. + and left aileron servo signal
2.
– and right aileron servo signal
A single 4-pole connector is used for the servos to extension lead connection:
1. + both servos
2.
– both servos
3. left aileron servo signal
4. right aileron servo signal
Install the micro receiver and battery. Do NOT run the aerial(s)inside the carbon fuselage, nor run the aerial on
the carbon surface. Both of these installations can seriously decrease the control range.
Drill a small hole either side of the pod and run the antennas on the outside of the pod.
Check the CG position. It should be about 80 mm behind the wing leading edge. Plasticine can be inserted into
the fuselage nose to shift the CG into correct position.
Control movements
The model is normally equipped with 4 servos: two for ailerons, one for stabilizer, one for rudder.
Ailerons
-
direction control
(measured from neutral aileron position)
12 mm up, 6 mm down
brakes: 30 mm down
flaps: 2-3 mm down
brakes and flaps should be compensated for with appropriate elevator movements: down elevator for down
ailerons.
Elevator
up/down 10 mm
Rudder
left/right 15 mm, coupled with ailerons
Note: If the wing airbrakes deploy down (as mentioned above) be sure to install the rudder servo. The model can
not be directionally controlled with ailerons when they are deployed f down.
