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PREFLIGHT

Identify Your Model

No matter if you fly at an AMA sanctioned R/C club site or if

you fly somewhere on your own, you should always have

your name, address, telephone number and AMA number

on or inside your model. It is required at all AMA R/C club

flying sites and AMA sanctioned flying events. Fill out the

identification tag on page 18 of this manual and place it on

or inside your model.

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.

CAUTION: Unless the instructions that came with your

radio system state differently, the initial charge on new

transmitter and receiver batteries should be done for 15

hours using the slow-charger that came with the radio

system. This will "condition" the batteries so that the next

charge may be done using the fast-charger of your

choice. If the initial charge is done with a fast-charger the

batteries may not reach their full capacity and you may be

flying with batteries that are only partially charged.

Note: 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.

Balance the Propellers

Carefully balance your propeller and spare propellers before

you fly. An unbalanced prop can be the single most significant

cause of vibration that can damage your model. For electric

motors, proper balance is even more critical than glow

motors. Not only will pushrod connector screws loosen,

possibly with disastrous effect, but vibration may also

damage your radio receiver and speed control.

We use a Top Flite Precision Magnetic Prop Balancer

(TOPQ5700) in the workshop and keep a Great Planes

Fingertip Prop Balancer (GPMQ5000) in our flight box.

Ground Check

If the motor is new, follow the manufacturer's instructions to

break-in the motor. After you run the motor on the model,

inspect the model closely to make sure all screws remained

tight, the hinges are secure, the prop is secure and all

pushrods and connectors are secure.

Range Check

Ground check the operational range of your radio before the

first flight of the day. With the transmitter antenna collapsed

and the receiver and transmitter on, you should be able to

walk at least 100' away from the model and still have control.

Have an assistant stand by your model and, while you work

the controls, tell you what the control surfaces are doing.

Repeat this test with the motor running at various speeds

with an assistant holding the model, using hand signals to

show you what is happening. If the control surfaces do not

respond correctly, do not fly! Find and correct the problem

first. Look for loose servo connections or broken wires,

corroded wires on old servo connectors, poor solder joints

in your battery pack or a defective cell, or a damaged

receiver crystal from a previous crash.

Mount the Wing

Mount the wing to the fuselage with rubber bands included

with the Mini Cub ARF. Install them from front to back,

crisscrossing the last two. Never use torn or cracked rubber

bands. After removing the rubber bands from your model,

store them in a container with talcum powder or clay-type

kitty litter to keep them fresh for the next flying session. Use

eight (8) #32 Great Planes, Hobbico or similar rubber bands

as replacements.

If the rubber bands you will be using are different from those

recommended, consult an experienced modeler to make

certain they are strong enough, and that you have used

enough of them. If uncertain, force the front of the wing off

of the wing saddle. There should be considerable

resistance! If the wing can be forced from the fuselage

without having to strain your hands, then there are probably

not enough rubber bands.

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