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EXPERT Manual
GENERAL NOTES
D A I LY FLIGHT CHECKS
Radio controlled models are a great source of pleasure. Unfortunately,
they can also pose a potential hazard if not maintained and operated
properly. It is imperative that you install your radio control system cor-
rectly. Additionally, your level of piloting competency must be high
enough to ensure that you are able to control your aircraft under all
conditions. If you are a newcomer to radio controlled flying, please
seek help from an experience pilot or your local hobby shop.
Listed below are some safety Do’s and Don’ts that must be followed by
all pilots.
• Ensure that your batteries have been properly charged prior to
initial flight.
• Keep track of the time that the system is turned on so that you will
have an idea of how long you can safely operate your system.
• Perform a ground range check prior to the initial flight of the day.
See the “Daily Flight Checks” section for information on how to do so.
• Check all control surfaces prior to each take off.
• Use frequency flags.
• Do not fly your model near spectators, parking areas, or at any other
area that could result in injury to people or damage of property.
• Do not fly during adverse weather conditions. Poor visibility can
cause disorientation and loss of control of your aircraft. Strong winds
can cause similar problems.
• Do not fly unless your frequency is clear.
Warning:Only one transmitter at a time can operate on a given
frequency. If you turn on your transmitter while someone
else is operating a model on your frequency, both pilots will
lose control of their models. Only one person can use a
given frequency at a time. It does not matter if it is AM, FM
or PCM — only one frequency at a time.
• Do not point the transmitter antenna directly toward the model.
The radiation pattern from the tip of the antenna is inherently low.
• Do not take chances. If at any time during flight you observe any
erratic or abnormal operation, land immediately, and do not
resume flight until the cause of the problem has been ascertained
and corrected.
1. Check the battery voltage on both the transmitter and the receiver
battery packs. Don’t fly below 9.0 volts on the transmitter (orange
and red lights on only) or below 4.7 volts on the receiver. To do so
can cause a crash of your aircraft.
NOTE: When you check the receiver battery, be sure that you
have polarities correct on your expanded scale
voltmeter (optional).
2. Check all hardware (linkages, screws, nuts, bolts) prior to each
day’s flight. Be sure that binding does not occur, and that every-
thing is properly secured.
3. Ensure that all surfaces are moving in the proper manner.
4. Perform a ground range check before each day’s flying session.
The range check should be as follows:
• Do not extend the transmitter antenna at this time. Turn the
transmitter “on.”
• Turn the model “on.”
• Slowly walk away from the model while moving the control
surfaces. The aircraft should function properly at a distance of
60-75 feet.
5. Ensure that all trim levers are in the proper location.
6. Check to be sure that all servo pigtails and switch harness plugs
are secure in the receiver. Also, make sure that the switch harness
moves completely in both directions.
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