Great Planes Giles G-202 46 Kit - GPMA0238 - Manual (Page 44)

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1. Wrap the battery pack in at least 1/4" of foam rubber
and secure it to a piece of leftover plywood. Then, fit it in
the location shown on the plan.
SECURING YOUR BATTERY PACK
We like to secure our batteries to the piece of leftover ply
by taking two strips of Velcro and making a belt that
wraps completely around the pack and the wood and
attaches to itself, thus holding the battery securely in
place and also making removal quick and easy.
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2. Mount the receiver switch in a convenient location
that will not interfere with the servos and pushrods inside
the fuselage.
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1. Accurately mark the balance point on the top of the
wing on both sides of the fuselage. Use thin strips of tape
or a felt-tip pen to make the marks. The balance point (CG)
is located 5-1/4" back from the leading edge where the
wing meets the fuse as shown in the sketch above and on
the fuse plan. Hint: Reference the full-size wing plan to
help you locate the proper balance point. This is the
balance point at which the model should balance for your
first flights. After initial trim flights and when you become
more acquainted with your Giles G-202, you may wish to
experiment by shifting the balance up to 1/4" forward or
back to change the flying characteristics. Moving the
balance forward may improve the smoothness and stability
but the model may then require more speed for takeoff and
make it more difficult to slow for landing. Moving the
balance aft makes the model more agile with a lighter,
snappier “feel” and often improves knife-edge capabilities.
In any case, please start at the location we recommend
and do not at any time balance your model outside the
recommended range.
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2. With the wing attached to the fuselage, all parts of the
model installed (ready to fly) and an empty fuel tank, hold
the model upside-down with the stabilizer level.
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3. Lift the model at the balance point. If the tail drops
when you lift, the model 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. Note: Nose weight may be easily
installed by using a “spinner weight” or gluing lead weights
to the firewall. Tail weight may be added by using Great
Planes (GPMQ4485) “stick-on” lead weights or, preferably,
by moving the rudder servo to the aft location. See page 32
for instructions on installing the rudder servo in the aft
location. If you chose to use stick-on weights, then later, if
the balance is okay, you can open the fuse bottom and glue
the weights in permanently.
* If possible, first attempt to balance the model by changing
the position of the receiver battery, rudder servo and
receiver. 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 the proper balance point.
Follow the battery charging procedures in your radio
instruction manual. You should always charge the
transmitter and receiver batteries the night before you go
flying, and at other times as recommended by the radio
manufacturer.
Balance the propellers carefully before flying. An
unbalanced prop is the single most significant cause of
vibration. Not only may engine mounting screws vibrate
out, possibly with disastrous effect, but vibration may also
damage the radio receiver and battery. Vibration may
cause the fuel to foam, which will, in turn, cause your
engine to run lean or quit.
We use a Top Flite Precision Magnetic Prop Balancer ™
(TOPQ5700) in the workshop and keep a Great Planes
Fingertip Balancer (GPMQ5000) in our flight box.
Balance the Propeller
Charge the Batteries
At this time check all connections including servo arm
screws, Faslinks
™ , clevises and servo wires. Make sure
you have installed the silicone retainers on all the
clevises.
PREFLIGHT
5-1/4"
44