GREAT PLANES FLING Manual de instruções - Página 9

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Final Installation & C.G.

The receiver (Rx) and the battery should be all the weight

that is needed to set the correct C.G. On our test models

installing the Rx in front of the servos and the battery behind

the servos set the correct C.G. Also, to keep the weight low,

do not use a switch. Instead, plug the battery directly into

the Rx.

1. Secure the tow hook with a couple of drops of thin CA

applied to the threads from the inside of the plane. Note: Do

not glue the pushrod strings together.

2. Accurately mark the balance point on the bottom of the

wing on both sides of the fuselage. The balance point is

located 2-3/4" [70mm] back from the leading edge at the

fuselage. This is the balance point at which your model

should balance for your first flights. Later, you may wish to

experiment by shifting the balance up to 3/8" [9.5mm]

forward or 1/4" [6mm] back to change the flying

characteristics. Moving the C.G. forward will add some

stability but it will decrease the overall performance of the

sailplane. Moving the balance back makes the model more

agile with a lighter and snappier "feel" and improves the

sailplane's response to air currents. In any case, please

start at the location we recommend and do not at any time

balance your model outside the recommended range.

3. Temporarily place the servos, battery and Rx in the

fuse, and mount the wing and canopy. Check that the plane

balances at 2-3/4" [70mm]. Move the components until the

plane balances on that point.

4. Place a piece of 1/4" [6mm] foam in the bottom of the

fuse under the location of the battery. Slide the battery wire

forward in the fuse under the servos. Hold the battery in place

with a leftover piece of balsa and glue using medium CA.

5. Install the Rx in front of the servos, isolating it from the

fuse with 1/4" [6mm] foam.

6. Drill a 1/16" [1.5mm] hole in the bottom of the fuse in

the rear of the wing opening. Route the antenna through the

forward wing former and out the hole in the bottom of the

fuse. Tape the antenna to the bottom of the fuse.

GET THE MODEL READY TO FLY

Charge the Batteries

Follow the battery charging instructions that came with your

radio control system to charge the batteries. 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.

Note: Checking the condition of your receiver battery pack

is highly recommended. All battery packs, whether it's a

trusty pack you've just taken out of another model, or a new

battery pack you just purchased, should be cycled, noting

the discharge capacity. Oftentimes, a weak battery pack can

be identified (and a valuable model saved!) by comparing its

actual capacity to its rated capacity. Refer to the instructions

and recommendations that come with your cycler. If you

don't own a battery cycler, perhaps you can have a friend

cycle your pack and note the capacity for you.