24
E-flite Leader 480 ARF Assembly Manual
Control Throws
1. Turn on the transmitter and receiver of your
model. Check the movement of the rudder using
the transmitter. When the stick is moved right, the
rudder should also move right. Reverse the direction
of the servo at the transmitter if necessary.
2. Check the movement of the elevator with the
radio system. Moving the elevator stick toward
the bottom of the transmitter makes the airplane
elevator move up.
3. Check the movement of the ailerons with the
radio system. Moving the aileron stick right makes
the right aileron move up and the left aileron
move down.
4. Use a ruler to adjust the throw of the elevator,
ailerons and rudder. Adjust the position of
the pushrod at the control horn to achieve the
following measurements when moving the sticks to
their endpoints.
Elevator high Rate (100%) (30% Exponential)
Up
23/32-inch (18mm)
Down
25/32-inch (20mm)
Elevator Low Rate (20% Exponential)
Up
5/16-inch (8mm)
Down
11/32-inch (9mm)
Aileron high Rate (100%) (40% Exponential)
Up
25/32-inch (20mm)
Down
25/32-inch (20mm)
Aileron Low Rate (33% Exponential)
Up
19/32-inch (15mm)
Down
19/32-inch (15mm)
Rudder high Rate (100%) (30% Exponential)
Right
1
3
/
16
-inch (30mm)
Left
1
3
/
16
-inch (30mm)
Rudder Low Rate (20% Exponential)
Right
25/32-inch (20mm)
Left
25/32-inch (20mm)
Measurements are taken at the inner or
widest point on the control surface.
These are general guidelines measured from our own
flight tests. You can experiment with higher rates to
match your preferred style of flying.
Travel Adjust and Sub-Trims are not listed and
should be adjusted according to each individual
model and preference. Always install the control
horns 90-degrees to the servo centerline. Use
sub-trim as a last resort to center the servos.
We highly recommend re-binding the radio
system once all the control throws are set. This will
keep the servos from moving to their endpoints
until the transmitter and receiver connect.
preflight
Check your Radio
Before going to the field, be sure your batteries are
fully charged per the instructions included with your
radio. Charge the transmitter and motor battery
for your airplane. Use the recommended charger
supplied with your particular radio system, following
the instructions provided with the radio. In most
cases, the radio should be charged the night before
going out flying.
Before each flying session, be sure to range check your
radio. See your radio manual for the recommended
range and instructions for your radio system. Each
radio manufacturer specifies different procedures for
their radio systems. Next, run the motor. With the
model securely anchored, check the range again.
The range test should not be significantly affected. If
it is, don’t attempt to fly! Have your radio equipment
checked out by the manufacturer.
Double-check that all controls (aileron, elevator, rudder
and throttle) move in the correct direction.
Check the radio installation and make sure all the
control surfaces are moving correctly (i.e., the correct
direction and with the recommended throws).
Check all the control horns, servo horns, and clevises
to make sure they are secure and in good condition.
