User manual FUTABA FX10

[. . . ] Only use the FX10 with a 2. 4GHz system such as the Futaba FASST system, or a PCM system. Use with a FM system is strongly discouraged since interference can cause serious operational problems. Gyro operating precautions: Gyro The FX10 requires 5-10 seconds to initialize when the power is turned on. Do not move the helicopter and do not move the tail rotor stick during this initialization or the gyro may not initialize properly. Once the initialization process is complete, the tail rotor servo will move to the left extent and then to the right extent. [. . . ] Hold the tail rotor linkage over the linkage ball to avoid damaging the servo. Once the limits are set you can place the linkage onto the linkage ball. When using AVCS mode the optimum setup is to have 0° of pitch with the tail rotor servo centered and use all of the available pitch range in the tail without binding. Turn the receiver power off to exit programming mode and then turn the receiver power back on. Once the gyro has completed initialization move the tail rotor stick to the right on the transmitter and verify that right (clockwise rotation) tail rotor pitch is inputted to the tail rotor blades. If left tail rotor pitch is inputted to the tail rotor blades, then it will be necessary to reverse the tail rotor channel in the transmitter. Pick the helicopter up by the main shaft and rotate the mechanics counter-clockwise (from the top). The gyro should compensate by adding clockwise rotation pitch to the tail rotor blades. If the gyro compensates by adding counter-clockwise rotation pitch to the tail rotor blades then it will be necessary to reverse the "Gyro Direction" setting within the gyro (refer to the "Gyro Basic Setting" section earlier in this manual). If you are going to fly AVCS Heading Hold mode exclusively, then the gyro setup is now complete. 37 BEFORE FLIGHT CHECKLIST Transmitter and Receiver batteries are fully charged. The gyro wiring has some slack in it and all wires are clear of the main frame. With clockwise rotating main rotor blades this means 10 degrees of right tail rotor pitch will be necessary to counteract torque. In addition to this it will be necessary to use the tail rotor compensation or revolution mixing functions of your transmitter to help counteract torque. Please see your transmitter instruction manual for more information on how to set this up. If you decide to switch between Normal Mode and AVCS Mode in flight, you must have the gyro re-learn the center position after making a trim change within the transmitter. To memorize the new center position simply flip the gain switch on the transmitter three times b e t w e e n N o r m a l M o d e a n d AV C S M o d e (Normal AVCS Normal AVCS) within one second. The tail rotor servo will center, indicating that the new center position has been memorized. 41 SETTING THE GAIN Most modern computer transmitters will have a gyro function built into them. If this is the case, please refer to your transmitter's instruction manual. Most modern gyro functions will allow you to set the mode of operation and the gains for several flight conditions. Shown below is a recommendation of settings: Recommended Gyro Function Settings: Switch: Condition Type: GY or AVCS Gain Values Normal: 70% A (AVCS) Idleup 1: 40% A (AVCS) Idleup 2: 40% A (AVCS) Hold: 70% A (AVCS) 2-Position Switch A Gyro Mode Gain Channel ATV or EPA 100% B AVCS 70% AVCS Side NORMAL 70% Normal Side GAIN % 50% 0% +100% Neutral 0% -100% 42 SETTING THE GAIN If your transmitter does not have a Gyro function built in then it will be necessary to use the ATV or EPA function to control the gain. The Gyro Gain channel will generally be assigned to a switch which provides two gain values. Simply set the ATV or EPA for the gyro channel to the desired gain value and set the Gain Switch to the desired mode of operation. [. . . ] The "Exec. ??" is displayed by pushing data + or ­ key for confirmation. Push data+ or ­ key again, the reset process is done and displayed "-Exec. --" and return to the start display. Pushing mode+ or ­ key during confirmation display, the reset process is aborted. 73 GOVERNOR EXPERT SETTING This sets the details of the governor function for the expert modeler. Push the mode + or ­ key for more than one second on the Governor Basic menu display, to get into the Governor Expert menu. [. . . ]