'ADJUSTMENTS AND FLIGHT TECHNIQUES
TACHO METER
Tachometer
The tachometer function is used to measure the speed on one to five-bladed propellers, etc. Speed (rpm) is
measured up to a maximum of 50,000 rpm (in 20 rpm increments).
Setting Method
1) Display the standard screen, and press the
TAC program key.
2) Press program key to to select the
number of blades.
Ex: for a two-bladed propeller.
3) Measure the speed by pointing the built-in
sensor on the transmitter (center of the left
side panel) at the front or rear of the propeller
disc from a distance of 8 to 12 inches. Be sure
the model is restrained by an assistant, and be
very careful of the rotating propeller.
Allow a few seconds for the display to stabi-
lize, then read the measured value. Maximum
speed range is 50,000 rpm.
Low Battery Warning
Low Battery Warning
This function operates when the transmitter
Nicd battery voltage drops below 8.5 volts. The
characters "LOW BATTERY" blink on the
screen, and a buzzer sounds. When this occurs,
land immediately and recharge or replace the
Nicd battery pack.
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