ALZRC 3GYS Instructions Manual Download Page 10

symbol.
Pick up the helicopter and pitch the helicopter forwards and backwards. The swashplate should try to remain 
level (pitch forward, swashplate moves backwards; pitch backwards, swashplate moves forwards). If the 
reverse happens, change the "Pitch:" symbol.

Pick up the helicopter and roll the helicopter to the left and right. The swashplate should try to remain level (roll 
left, swashplate moves to the right; roll right, swashplate moves to the left). If the reverse happens, change the 
"Roll:" symbol.

When finished, press the BACK key to return to "Gyro direction".

9.11 Total gyro gain adjustment

When the screen displays "Gyro direction", press the DOWN/DATA- key to display the "Gyro total gain", and 
then press ENTER to select it.

"Yaw total gain:" tail rotor total gain, "Roll total gain:" aileron total gain, "Pitch total gain:" elevator total gain. 
For the first flight, these values should be left as the default. If the helicopter drifts in the hover, increase the 
roll and pitch gain. If the helicopter oscillates in the hover reduce the roll and pitch gain. Usually the yaw total 
gain is left at the default (100) and adjustments are made in the transmitter.

Note: The default values are 100 for yaw and 40 for roll and pitch.

After setting, press the BACK key to return to "Gyro total gain".

9.12 Rotation direction setting optimization

When the screen shows "Gyro total gain" press the DOWN/DATA- key to display "Pirouette optimization", and 
press ENTER to select it.

The swashplate will tilt at an angle. Note the direction of the swashplate. Rotate the tail of the helicopter, 
making sure the programmer does not become disconnected. During the rotation the swashplate should 
continue to point in the same direction, as the needle of a compass would do it you rotated the compass body. 
If the swashplate does not maintain in the same direction, change the direction symbol and try again.

Summary of Contents for 3GYS

Page 1: ...Operating temperature 10 to 50 Maximum angular rate 800 degrees sec Support for the rudder servo 1 52ms analog servo 1 52ms digital servo 760us digital servo 960us digital servo Support for swashplate...

Page 2: ...ontal alignment on a stable platform as far as possible away from the engine and other electronic devices the gyro should be installed using double sided foam adhesive between the gyro bottom and gyro...

Page 3: ...copters to 12 5mm 13mm 500 helicopters to 14mm 14 5mm 600 level and above to 14 5mm 15mm helicopter 6 2 Rudder servo Firstly verify that tail rotor mechanical parts are installed correctly and move sm...

Page 4: ...internal fine tuning value Sub trim to zero Ensure that all swashplate and tail rotor mixing functions are turned off Initially adjust the pitch curve to be a straight line from minimum to maximum pi...

Page 5: ...ht Note that U up is stick up and not up elevator Position the throttle at mid stick and adjust all four channels on the monitor display so the value shows 0 This is done by using the transmitters int...

Page 6: ...es for the gyro shown earlier in the manual to match the actual installation in the helicopter When finished press the BACK key to return to Installation Direction 9 3 Download model data stored in th...

Page 7: ...N DATA keys to select the required servo type When finished press the BACK key to return to Tail servo type 9 5 Model type selection helicopter swashplate type selection When the screen shows Tail ser...

Page 8: ...nd down and check that all of the servos move in the same direction and that the ailerons and elevator also operate correctly If not adjust the Servo 1 Servo 2 Servo 3 symbol It may sometimes be neces...

Page 9: ...OWN DATA key to display Collective range and then press ENTER to select it Move the throttle stick to the top and check the collective moves in the correct direction If not change the Collective range...

Page 10: ...For the first flight these values should be left as the default If the helicopter drifts in the hover increase the roll and pitch gain If the helicopter oscillates in the hover reduce the roll and pit...

Page 11: ...e mechanical structure of the helicopter checking for loose screws and mechanical parts that are badly worn Always check before each flight that the helicopter s mechanical movement is smooth If durin...

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