User Manual

Guilin Feiyu Electronic Technology Co., Ltd
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyudz.cn E-mail: [e-mail] Page 5
22. Adjustment Dials for ELE, AIL and RUD
1. There are 3 adjustment dials on the FY31AP. Each dial controls both
gyro gain and servo direction during auto stabilization.
2. Gyro Gain: The further away from Centre (12 O’clock) the higher
the Gyro gain (sensitivity). Too low gain result is poor auto
stabilization, too high gain will cause oscillations of the aircraft. You
need to adjust the gain setting based on the requirement of your
aircraft.
3. Servo Direction: The dials also control the direction of your servo
movement. Turning it clockwise or counter clockwise from 12
O’clock will change the direction of your servos during stabilized
flight against tilting, roll and yaw.
23. CONTROL SURFACE MOVEMENT CHECK
Install FY31AP as recommended in this manual, then proceed to confirm
correct control surface movement direction in Mode 2 or Mode 3.
1. In Manual mode (stabilization deactivated) confirm that the control
surfaces do to react when your aircraft is tilted or rolled.
2. Activate Mode 2 (Auto stabilize mode) and observe the movement
direction of Aileron, Elevator and Rudder. The direction should be as
shown below. If direction is wrong, turn the appropriate dial to the
opposite side of 12 O’clock to get the action direction correct:
AILERONS - Roll the plane to see the following action:
l Incline the plane to the right (roll right). The ailerons should give a
control signal to counter this roll direction (see below). Same as when
rolled to the left. If the ailerons move correctly, the knob has been
turned in the right direction. You can now adjust gain by moving
nearer (low gain) or further away (high gain) from center;
l If the ailerons do not follow the movements shown above, simply turn
the aileron knob to the opposite side (beyond centre). You should
now see the correct aileron movement.
ELEVATOR - Pitch the plane nose up and down to see the following
elevator action:
l Incline the plane NOSE UP. You should see the elevator move down.
And when you move the NOSE DOWN, the elevator should move up.
l Move the Elevator knob to the opposite side (from Centre) if the
servo movement is incorrect.
RUDDER - Turn your plane clockwise or counter clockwise to see the
rudder movement below:
l Move the Rudder knob to the opposite side (from Centre) if the servo
movement is incorrect.
l Adjust Rudder gain according to your aircraft requirement (lowest
gain nearest to centre, highest gain further away from centre).
24. RECORDING YOUR AIRCRAFT NEUTRAL VALUE
1) The FY31AP can record your aircraft best stabilization attitude in its
memory. By recording this ‘Neutral Value’, the FY31AP can know
how best to control your aircraft for optimum stability.
2) You can do this procedure with the aircraft on the ground or in the
air.
3) Setting the Neutral Value on the ground is quick and easy and will
produce good stabilization results. However recording neutral value
‘on the fly’ will result in more accurate autonomous flight attitude
control.
Right aileron
automatically
move downwards.
Roll right
Left aileron
automatically
move upward.
Right aileron
automatically
move upwards
Roll left
Left aileron automatically
move downwards
Aileron Movement In Auto Stabilization Mode
The 3 dials control
both gain & servo
direction.
+100 Max
-
100 Max
0 Min
Rudder moves
to the left
Rotate right
Rotate left
Rudder moves
to the right
Rudder Movement Auto Stabilization Mode
Plane nose will pitch
down when in Auto
Stabilization Mode.
Plane nose pitches up when
in Auto Stabilization Mode.
Plane pitch remains
level when in Auto
Stabilization Mode
FY
-
3
1
A
P
Elevator Movement In Auto Stabilization Mode
Elevator moves up
Nose Down
Elevator moves down
Nose Up
Max Gyro Gain
Max Gyro Gain
Servo direction
change in
Mode 3 & 2.
Servo direction
change in
Mode 3 & 2.
12 O’clock
Min Gyro Gain