User manual FUTABA GY701

[. . . ] INSTRUCTION MANUAL 1M23N23906 TABLE OF CONTENTS · Precautions ----------------------------------3 · Warranty and Repair Service (in U. S. A. ) --8 · Introduction ---------------------------------9 · Features --------------------------------------9 · Contents ----------------------------------- 11 · Specifications ----------------------------- 14 · Recommended Servos ------------------- 15 · Replacement and Optional Items ------- 15 · Connecting the GY701 to your Receiver 16 · LED Indicator Description -------------- 19 · Mechanics Preparation------------------- 20 · Opening Screen --------------------------- 22 · Home Screen ------------------------------ 23 · Warning Display -------------------------- 28 · Edit Screen -------------------------------- 30 · Gyro Basic Setting ----------------------- 32 · Gyro Sensor Installation ----------------- 34 · Tail Rotor Servo Installation and Setup-- 35 · Before Flight Checklist ------------------ 38 · Adjustments During the Test Flight ---- 39 · Using Normal Mode --------------------- 41 · Setting the Gain--------------------------- 42 · Governor Basic Setting ------------------ 44 · Mounting the Magnet and Sensor ------ 52 · Fuselage Setting Precautions ----------- 56 · Governor Operation ---------------------- 58 · Governor Speed Setting ----------------- 60 · S. BUS Basic Setting --------------------- 62 · Gyro Expert Setting ---------------------- 65 · Governor Expert Setting----------------- 74 2 TABLE OF CONTENTS Gyro Governor : Instructions for gyro function : Instructions for governor function Technical updates and additional programming examples can be found at: www. futaba-rc. com/faq PRECAUTIONS Meaning of Special Markings Pay special attention to safety where indicated by the following marks: DANGER - Procedures which may lead to dangerous conditions and cause death/serious injury if not carried out properly. WARNING - Procedures which may lead to a dangerous condition or cause death or serious injury to the user if not carried out properly, or procedures where the probability of superficial injury or physical damage is high. CAUTION - Procedures where the possibility of serious injury to the user is small, but there is a danger of injury, or physical damage, if not carried out properly. : Prohibited : Mandatory 3 PRECAUTIONS WARNING Failure to follow these safety precautions may result in severe injury to yourself and others. BEFORE EACH FLIGHT: Always check the transmitter and receiver battery voltage to ensure they have enough remaining capacity to complete the flight. [. . . ] 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. The Tail rotor servo arm is perpendicular to the pushrod and the pitch slider is centered. The servo does not bind when full left or full right tail rotor is applied. The gyro compensates the correct direction when the helicopter is rotated. The gain is set correctly and the gyro operates in the correct mode (AVCS or Normal) in every flight condition. 38 ADJUSTMENTS DURING THE TEST FLIGHT WARNING Always make small (1%) adjustments to the tail Over 100%, it is possible to exceed the sensor's second). The gyro will then no longer control the pirouette rate or consistency. If you experiment with the ultra-fast pirouette rate, make sure that your flight battery and fuel tank are secure. Also be certain that your model's tail rotor drive train is up to the task. The Tail Rotor AFR or D/R function within the transmitter is used to adjust the pirouette rate of the helicopter. For example at 100% D/R, with the gyro set to F3C mode, the helicopter will achieve a 450 deg/sec pirouette rate. If you would like the model to pirouette faster, then increase the AFR or D/R. If you would like the model to pirouette slower, then decrease the AFR or D/R. The gain should be raised until the tail begins to oscillate quickly (also called Tail Wag). Once this point has been achieved, reduce the gain by a couple of percent and test fly the model again. Typically the gain will be lower for the Idle up 1 and Idle up 2 flight modes due to the higher head speed being used. The gain for the Hold condition can also be much higher than other flight modes since the head speed is lower and the engine vibration is minimized. 39 ADJUSTMENTS DURING THE TEST FLIGHT The tail rotor ratio, tail rotor pitch range and tail blade length play a large part in achieving optimum tail rotor performance. The gain value can vary drastically from model to model and the exact value should not play a part in the evaluation of the gyro's performance. How the gyro operates during flight is the only concern of ours. 40 USING NORMAL MODE Most pilots today are using AVCS Mode. If you are just starting out, it is recommended that you use AVCS Mode exclusively from the start. Normal Mode is rarely used today due to the performance benefits of AVCS mode. When using AVCS mode all trimming of the tail is automatically handled by the gyro. If you should decide to use Normal Mode than all trimming and mixing must be setup by you. [. . . ] Push mode + or ­ key for more than one second again on the Governor Expert menu to be returned to the Governor Basic menu. (1) Start display Push mode + or ­ key, to scroll through the editing menu. Pushing mode + or ­ key for more than one second, brings you back to governor basic menu. (2) Governor working mode default: Governor This selects the governor working mode as either governor or revolution limit mode. [. . . ]