User Manual

12
Range Test Your Radio

Step 1
Before going to the field, be sure that your batteries
are fully charged, per the instructions included with
your radio. Charge both the transmitter and receiver
pack for your airplane. Use the recommended charger
supplied with your particular radio system, following the
instructions provided with the radio. In most cases the
radio should be charged the night before going out flying.

Step 2
Before each flying session, be sure to range check your
radio. See your radio manual for the recommended
range and instructions for your radio system. Each radio
manufacturer specifies different procedures for their
radio systems. Next, start the engine. With the model
securely anchored, check the range again. The range test
should not be significantly affected. If it is, don’t attempt
to fly! Have your radio equipment checked out by the
manufacturer.
Note: Keep loose items that can get entangled
in the propeller away from the prop. These
included loose clothing, or other objects such
as pencils and screwdrivers. Especially keep
your hands away from the propeller.

Step 3
Double-check that all controls (aileron, elevator, rudder
and throttle) move in the correct direction.

Step 4
Check the radio installation and make sure all the
control surfaces are moving correctly (i.e. the correct
direction and with the recommended throws). Test
run the engine and make sure it transitions smoothly
from idle to full throttle and back. Also ensure the engine
is tuned according to the manufacturer’s instructions,
and it will run consistently and constantly at full throttle
when adjusted.
Check all the control horns, servo horns, and clevises to
make sure they are secure and in good condition. Replace
any items that would be considered questionable. Failure
of any of these components in flight would mean the loss
of your aircraft.
Before each flying session, range-check your radio.
This is accomplished by turning on your transmitter
with the antenna collapsed. Turn on the radio in your
airplane. With your airplane on the ground, you should
be able to walk 30 paces away from your airplane and
still have complete control of all functions. If not, don’t
attempt to fly! Have your radio equipment checked out
by the manufacturer.
Preflight
Range Testing the Radio