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1. Instruction Manual

NOTE: The throws are measured at the widest part of the

elevators, rudder and ailerons. If your radio does not have

dual rates, we recommend setting the throws at the high

rate settings.

These are the recommended control surface throws:

3D RATE

Down

1-3/4"

ELEVATOR

[44mm]

31°

Right

Left

4-1/2"

RUDDER

[114mm]

52°

Down

1-1/4"

AILERONS

[32mm]

20°

Balance the Model (C.G.)

More than any other factor, the C.G. (center of gravity/

balance point) can have the greatest effect on how a

model ﬂ ies and could determine whether or not your ﬁ rst

ﬂ ight will be successful. If you value your model and wish

to enjoy it for many ﬂ ights, DO NOT OVERLOOK THIS

IMPORTANT PROCEDURE. A model that is not properly

balanced may be unstable and possibly unﬂ yable.

Now is the time to install the propeller. At this stage the model

should be in ready-to-ﬂ y condition with all of the components

in place including the complete radio system. The motor

battery has not been installed yet. You will move the motor

battery forward and aft to balance the plane.

❏

1. If using a Great Planes C.G. Machine

to 4" [102mm]. If not using a C.G. Machine, use a ﬁ ne-point

felt tip pen to mark lines on the top of wing, 1" [25mm] out

HIGH RATE

LOW RATE

Down

1-3/8"

[35mm]

[25mm]

24°

17°

Right

Left

Right

3-1/2"

2-3/8"

[89mm]

[60mm]

37°

24°

Down

3/4"

[25mm]

[19mm]

16°

12°

™

, set the rulers

from the fuselage sides, on both sides of the fuselage 4"

[102mm] back from the leading edge. Apply narrow (1/16"

[2mm]) strips of tape over the lines so you will be able to feel

them when lifting the model with your ﬁ ngers.

This is where your model should balance for the ﬁ rst

ﬂ ights. Later, you may experiment by shifting the C.G. 3/8"

[9.5mm] forward or 1/4" [6mm] back to change the ﬂ ying

characteristics. Moving the C.G. forward will improve the

smoothness and stability, but the model will then be less

aerobatic (which may be ﬁ ne for less-experienced pilots).

Moving the C.G. aft makes the model more maneuverable

and aerobatic for experienced pilots. In any case, start at

the recommended balance point and do not at any time

17°

balance the model outside the speciﬁ ed range.

Left

24°

3/4"

12°

❏

2. With the wing attached to the fuselage, all parts of the

model installed (ready to ﬂ y), place the model upside-down

on a Great Planes CG Machine, or lift it upside down at the

balance point you marked. Place the motor battery on the

bottom of the fuselage.

❏

3. If the tail drops, the model is "tail heavy." Move the motor

battery forward to get the model to balance. If the nose drops,

the model is "nose heavy." Move the motor battery aft. Once

you have determined the battery location required to balance

the plane note the location and where the battery would need

to be attached inside the fuselage, above the wing.