GREAT PLANES EXTRA 330SC Buku Petunjuk - Halaman 13

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4. Connect the servos to the receiver so that the wires do

not interfere with any of the pushrods. Note that a hole has

been provided to route the rudder and aileron servo wires to

the bottom right side of the fuselage.

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5. Insert the landing gear through the landing gear support

and into the horizontal fuselage. Be careful not to push the

landing gear all the way through the horizontal fuselage. The

end should be ﬂ ush with the top of the horizontal fuselage. If it

is difﬁ cult to insert both landing gear legs through the landing

gear support, use a hobby knife to enlarge the hole slightly.

Rotate the wheels so that they are parallel to each other.

Apply glue to the joint between the landing gear support and

the landing gear legs and the horizontal fuselage and the

landing gear legs.

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6. Position the receiver on the side of the fuselage, under

the wing as far forward as possible. Make sure that the servo

wires do not interfere with the pushrods. Apply a piece of

hook material on the side of the fuselage, at the receiver

location. Attach the receiver to the fuselage. To prevent the

wires from interfering with the pushrods, use a small piece of

tape to attach them to the fuselage.

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7. Install the propeller on the motor following the motor

instructions. Hint: The rubber o-ring can be difﬁ cult to stretch

over the screw, then the propeller and over the other screw.

A small jewelers phillips head screwdriver can be used to pry

the rubber o-ring over the screws and propeller. Be careful

not to allow the screwdriver to slip and damage the windings

inside the motor.

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.

Because the Extra 330SC is an indoor lightweight plane,

adding weight to balance the plane is not an option. At this

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

the components in place except the motor battery. The motor

battery will be moved forward and aft to balance the plane.

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1. Use a ﬁ ne-point felt tip pen to mark lines on the bottom

of the wing, 5/8" [16mm] aft from the carbon strip in the wing,