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BALANCE YOUR MODEL (C.G.)

Note: This section is VERY important and must NOT be

omitted! A model that is unbalanced will be unstable

and possibly unflyable.

Big Stik .40 ARF

4-1/16"

❏

1. The balance point is located 4-1/16" back from the

leading edge of the wing. Mark this location on the bottom

of both sides of the wing at the fuselage. This is the balance

point that should be used for your first flights. After you have

become familiar with the plane you may wish to experiment

by moving the C.G. forward or aft up to 3/8" to change its

flight characteristics. Do not at any time balance your model

outside the recommended range.

Big Stik .60 ARF

4-5/8"

The balance point is located 4-5/8" back from the leading

edge of the wing. Mark this location on the bottom of both

sides of the wing at the fuselage. This is the balance point

that should be used for your first flights. After you have

become familiar with the plane you may wish to experiment

by moving the C.G. forward or aft up to 3/8" to change its

flight characteristics. Do not at any time balance your model

outside the recommended range.

❏

2. With all of the parts of the model installed (ready to fly)

and an empty fuel tank, lift the model at the balance point. If

the tail drops the plane is "tail heavy" and you must add

weight to the nose to balance the model. If the nose drops,

it is "nose heavy" and you must add weight to the tail to

balance the model.

❏

3. If possible try to balance the model by changing the

position of the receiver battery. If you are unable to obtain

good balance by doing so, then it will be necessary to add

weight to the nose or tail to achieve a proper balance point.

PREFLIGHT

At this time check all connections including servo horn

screws, clevises, servo cords and extensions. Make sure

you have installed the nylon retainer on the Screw-Lock

Pushrod Connector and the silicon retainers on all clevises.

Be sure that you have followed all of the instructions of the

radio manufacturer including running the antenna out the

fuselage to the tail.

Charge the Batteries

Follow the battery charging procedure in your radio instruction

manual. You should always charge your transmitter and

receiver batteries the night before you go flying and at other

times as recommended by the radio manufacturer.

Balance the Propeller

Carefully balance your propellers before flying. An unbalanced

prop is the single most significant cause of vibration. We

recommend the Top Flite Precision Magnetic Balancer

(TOPQ5700) and the Top Flite Fingertip Balancer (GPMQ5000).

Find a Safe Place to Fly

The best place to fly your R/C model is an AMA (Academy

of Model Aeronautics) chartered club field. Ask your hobby

shop dealer if there is such a club and join. Club fields are

set up for R/C flying which usually makes your outing more

enjoyable. The AMA can also tell you the name of a club in

your area. We recommend that you join AMA and a local

club so you can have a safe place to fly and also have

insurance to cover you in case of a flying accident.

Ground Check the Model

Inspect your radio installation and confirm that all of the

control surfaces respond correctly to the transmitter inputs.

The engine operation must also be checked by confirming

that the engine idles reliably, transitions smoothly and

rapidly to full power and maintains full power indefinitely.

The engine must be "broken-in" on the ground by running it

for at least one full tank of fuel. Follow the engine

manufacturer's instructions for "break-in". Make sure that all

screws remain tight and that the prop is on tight.

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