E-FLITE Blade CP Manual - page 14
14
4-in-1 Control Unit Description, Arming and Adjustment
The unique 4-in-1 Control Unit installed on your Blade CP is a lightweight combination of 6-channel FM receiver,
main motor and tail motor mixer, main motor and tail motor electronic speed controls and piezo gyro. The 4-in-1
unit also contains a gyro gain trimmer pot, proportional tail rotor mix trimmer pot and status LED.
Below are tips for use and adjustment of your 4-in-1 unit to achieve the best performance of your Blade™ CP.
While each Blade CP model is test flown at the factory with adjustments made to both the gain and proportional
trimmer pots, further adjustment to these trimmer pots may be required based on the type of battery used, or
preference and flying style of the pilot. However, before any changes to the trimmer pots are made, test flights will
need to be conducted. Use the following check list for your first and all subsequent flights:
• Each time before you fly you must always turn on the transmitter power first before connecting the flight battery
to the 4-in-1 unit. Also be certain to fully extend the transmitter antenna before flight.
Note: The receiver antenna exiting the 4-in-1 unit will be coiled around the landing skid struts. We have made
many successful flights indoors and out (some nearly out of sight) with the antenna coiled this way and did not
experience any problems with performance of the radio system. If you are tempted to uncoil this antenna, please
be sure to route it safely away from all moving parts and electronic items. Remember, due to the relatively small
size of the Blade CP, you will not want to fly it very far away from yourself in order to keep proper orientation.
• Both the throttle stick and throttle trim need to be in their lowest possible position in order for the
unit to arm. The “idle up” flight mode switch must also be in the “normal” position with the switch toggled
toward the back of the transmitter for the unit to arm.
• If this is the first test flight, or a test flight following repairs, you will also want to center the rudder, aileron
and elevator trims.
• Once confirming the transmitter has been turned on and has an adequate level of battery power as displayed by
the LEDs at the top of the transmitter, it is now safe to plug the flight battery into the 4-in-1 unit.