Instruction manual

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 at the end 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.
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.
Balance 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.
Not only will engine mounting screws and bolts loosen,
possibly with disastrous effect, but vibration may also
damage your radio receiver and battery. Vibration can also
cause your fuel to foam, which will, in turn, cause your
engine to run hot or quit.
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 engine is new, follow the engine manufacturer’s
instructions to break-in the engine. After break-in,
confirm that the engine idles reliably, transitions smoothly
and rapidly to full power and maintains full power—
indefinitely. After you run the engine 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
Refer to your radio system’s manual and 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 feet 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 engine 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.
ENGINE SAFETY PRECAUTIONS
Keep all engine fuel in a safe place, away from high heat,
sparks or flames, as fuel is very flammable. Do not smoke
near the engine or fuel; and remember that engine exhaust
gives off a great deal of deadly carbon monoxide. Therefore
do not run the engine in a closed room or garage.
Get help from an experienced pilot when learning to
operate engines.
Use safety glasses when starting or running engines.
Do not run the engine in an area of loose gravel or sand;
the propeller may throw such material in your face or eyes.
Keep your face and body as well as all spectators away
from the plane of rotation of the propeller as you start and
run the engine.
Keep these items away from the prop: loose clothing, shirt
sleeves, ties, scarves, long hair or loose objects such as
pencils or screwdrivers that may fall out of shirt or jacket
pockets into the prop.
Use a “chicken stick” or electric starter to start the engine.
Failure to follow these safety precautions may result
in severe injury to yourself and others.
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