4
Step 3.1
Consult your radio instruction manual and center each
aileron servo by plugging it into the aileron channel in the receiver.
Turn on the transmitter and then the receiver. Center the aileron
trim lever on the transmitter. Remove the servo arm mounting
screw and the servo arm.
Step 3.2
Mount the servo arm back on the servo. Position the arm
to be parallel with the back edge of the wing. Screw the arm into
place with the servo arm mounting screw supplied with the servo.
Locate the two aileron control rods in the hardware bag. Ensure the
clevises are screwed well onto the threaded portion of the rod.
Rotate and tug aggressively on the clevises and ensure that they
are not loose on the rods. Tape the ailerons into their neutral posi-
tion so that they are even with the trailing edge of the wing and not
pointing either up or down.
Step 3.3
Ensure that the aileron control horns are screwed onto the
threaded aileron control horn bolts and that both control horns are
in approximately the same place on their respective bolts. See 3B
Step 3.4
Connect the aileron servo rods to the aileron control
horns. Connect the control rod to the servo output arm using a cle-
vis. See 3C
Step 3.5
Connect the other end of the control rod to the control
horn using the second clevis. See 3C
Step 3.6
Remove the masking tape holding the aileron.
Step 3.7
In the case of computer radios couple the servos togeth-
er electronically by connecting them to the appropriate receiver
channels. In the case of analog radios couple the servos together
using a Y harness.
Step 3.8
Turn on your radio and activate the ailerons, using the
aileron stick and ensure a smooth full motion can be achieved.
Step 3.9
With the wing top side up and viewed from the back,
ensure that moving the transmitter aileron stick to the left raises the
left aileron and lowers the right aileron. Movement of the stick to the
left will roll the aircraft to the left. (Counterclockwise roll of the wing
when viewed from the back).
Step 3.10
With the wing top side up and viewed from the back,
ensure that moving the transmitter aileron stick to the right raises
the right aileron and lowers the left aileron. Movement of the stick
to the right will roll the aircraft to the right.
INSTALLING THE AILERON CONTROL SYSTEM
STAGE 3
13
Step 2.3
Screw the servo into place with the screws and
grommets supplied. It is important to install the grommets
and screws correctly. See the manual that came with your
radio for instructions about your particular servo grommets.
See 2C
Step 2.4
Fasten the screws down according to the servo
manufacturers recommended tightness.
Step 2.5
Repeat this procedure for both wing servos.
2C - Mount the aileron servos into the wing
3A - Aileron control rod assembly
3B - Aileron control horn installed
3C- Aileron control rod installed
CONFIRM RADIO OPERATION
STAGE 25
BALANCING THE AIRCRAFT
STAGE 26
4-1/3 in (110mm)
24A - Location of servos at aft end of fuselage
24B - Receiver battery and receiver location
Receiver
Elevator servos
Rudder servos
Throttle servo
Receiver
Battery
Step 24.1
Consult your radio manual for instructions about
hooking up your receiver.
Step 24.2
Plan where you are going to put the receiver
with consideration for routing the antenna safely.
Step 24.3
Wrap the receiver securely in foam suitable for
RC equipment and wrap the foam insulated receiver in a
plastic bag or cling wrap.
Step 24.4
Install your receiver near the aft end of the fuse-
lage as shown in 24B.
INSTALLING THE RECEIVER
STAGE 24
Step 23.1
Consult your radio manual for instructions about
hooking up your receiver battery, receiver and switch har-
ness.
Step 23.2
Wrap the battery pack securely in foam suitable
for RC equipment and wrap the foam insulated pack in a
plastic bag or cling wrap. Position the battery pack as
shown in 24B.
Step 23.3
Thread the battery pack connector forward in
preparation for connecting to your switch harness.
Step 23.4
Connect the battery pack connector to your
switch harness according to your radio manual.
INSTALLING THE RECEIVER BATTERY
STAGE 23
26.1
The CG for your SU 27 FLANKER is located at 4-3/4 in. to 5-1/8 in. (120-130 mm) back from the leading edge of
the wing when the wing has been attached to the fuselage.
26.2
For the initial flight, the CG should be located at 4-3/4 in. (120mm) back from the leading edge of the wing when
the wing has been attached to the fuselage
26.3
The CG is measured with the engine, radio gear and all other components installed but WITH NO FUEL IN THE
TANK.
26.4
After gaining some experience flying the SU 27 FLANKER the location of the CG can be shifted slightly further
aft to a location not more than 5-1/8 in. (130mm). back from the leading edge of the wing when the wing has been
attached to the fuselage. Set the CG with NO FUEL IN THE TANK.
26.5
It is very important to have the CG correct. Flying your model with the CG too far back (aft) will likely lead to loss
of control and a crash. If you discover that after you have assembled your model and installed your radio and engine
that the CG of your model is incorrect you must bring the CG to the correct location by doing the following BEFORE
FLYING :
-
Move the battery pack fore or aft.
-
Move other components fore or aft.
-
Change engine to a lighter or heavier model.
-
Add weight to the nose or tail. If adding it to the nose, try to make it useful by going to a heavier duty engine or
adding a spinner with a heavy metal backing plate. As a last resort, add stick on “dead” weight where appropriate.
Step 25.1
Consult your radio manual for instructions about testing and operating your radio system.
Step 25.2
Pay particular attention to charging your radio system batteries and range testing the system before and after
each flight.
Step 25.3
Check that all controls are working correctly before and after each flight.
