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• Next, power on the transmitter, then the plug the battery pack into the battery lead of the 3-in-1
control unit. Allow time for the 3-in-1 control unit to initialize properly. Also, be sure to allow the gyro
to initialize properly, as outlined in its manual. If you are using the G90 gyro, the blue status LED
should illuminate solidly just before the status LED of the 3-in-1 unit becomes solid green. This will
indicate that the gyro and 3-in-1 control unit are ready for the test.
• After securing the helicopter and ensuring that all objects are free and clear of the tail rotor blades,
and also reconfirming that the main motor power lead has been disconnected from the 3-in-1 control
unit, advance the throttle/collective stick on the transmitter to approximately 1/3–1/2 travel. Use
caution, as the tail motor may begin to spin the tail rotor blade.
• Now it is best to check that the tail motor/rotor is responding properly to transmitter inputs. When
inputting a slight amount of right rudder, the tail rotor rpms should increase (to push the nose of
the helicopter to the right). When inputting a slight amount of left rudder, the tail rotor rpms should
decrease or stop entirely. If the tail motor/rotor is not responding properly, use the Servo Reversing
switch located on the front of the transmitter to reverse the direction of response.
• Once confirming that the tail motor/rotor is responding properly to transmitter inputs, it will also be
necessary to confirm that it is responding properly to inputs from the gyro. After again securing the
helicopter and ensuring that all objects are free and clear from the tail motor, and that the throttle is set
to approximately 1/3–1/2 power, quickly twist the nose of the helicopter to the left. If the tail motor/
rotor is responding properly to inputs from the gyro, the rpms will increase, to counteract the nose
twisting to the left, in order to bring the nose back to the right. When quickly twisting the nose of the
helicopter to right, the rpms should decrease or stop entirely. If the tail motor/rotor is not responding
properly, use the Reverse switch located on the gyro to reverse the direction of response.
• After confirming that the tail motor/rotor is responding properly to inputs from the gyro and
transmitter, disconnect the battery from the 3-in-1 control unit, power down the transmitter and re-
install the main motor power lead into the 3-in-1 noting proper polarity for correct operation.
Now that you have confirmed proper response of the tail motor/rotor to gyro and transmitter inputs,
it is time to proceed with initial adjustments of the gyro mode and gain setting, and to conduct test
flights.
Summary of Contents for Blade CP
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