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Control throws, Center of gravity – E-flite Sukhoi SU-26m 480 ARF User Manual

Page 22

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E-flite Sukhoi SU-26m 480 ARF Assembly Manual

Control Throws

1. Turn on the transmitter and receiver of your

Sukhoi SU-26m. 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 will make the airplane

elevator move up.

3. Check the movement of the ailerons with the

radio system. Moving the aileron stick right will

make 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.

Aileron Low Rate

Up

3/4-inch

(19mm)

Down

3/4-inch

(19mm)

Aileron high Rate

Up

1

1

/

4

-inch

(32mm)

Down

1

1

/

4

-inch

(32mm)

Elevator Low Rate

Up

1-inch

(25mm)

Down

1-inch

(25mm)

Elevator high Rate

Up

2-inch

(50mm)

Down

2-inch

(50mm)

Rudder Low Rate

Up

1

1

/

2

-inch

(38mm)

Down

1

1

/

2

-inch

(38mm)

Rudder high Rate

Up

2-inch

(50mm)

Down

2-inch

(50mm)

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, Sub Trim and Dual Rates are

not listed and should be adjusted according

to each individual model and preference.

Center of Gravity

An important part of preparing the aircraft for flight is

properly balancing the model.

Caution: do not inadvertently skip this step!

The recommended Center of Gravity (CG) location for

your model is 3

1

/

2

to 3

7

/

8

inches (89 to 98mm) back

from the leading edge of the wing. Mark the location

for the Center of Gravity on the top of the wing next to

the fuselage as shown.

When balancing your model, support the plane

inverted at the marks made on the top of the wing

with your fingers or a commercially available

balancing stand. Adjust components as necessary so

the model hangs level or slightly nose down. This is

the correct balance point for your model. You might

find you may be required to add a small amount of

weight to either the front or back of the fuselage to

achieve the correct balance.

After the first flights, the CG position can be adjusted

for your personal preference.