Owner manual

Guilin Feiyu Electronic Technology Co., Ltd.
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyu-tech.com [e-mail]
Page 15
 Control parameters adjustment
 RC Sensitivity
RC Sensitivity determine the reaction speed of attitude from command stick, the bigger the value the
quicker the reaction. Increase it for sharper and quicker leveling action after command stick released. Unstable
shaking flying and the control feeling will be stiffness and rigid if the value is too high; and sluggish leveling
action and slow braking if too small.
 Control Gain
Control gain use for stabilizing the flight attitude. To the gains of Pitch and Roll, if you release the Pitch or
Roll stick after command stick, multi-rotor should be back to hovering state.
Control P : If the reaction of multi-rotor in this procedure is too soft (large delay), please increase the
basic gain slowly (10%-15% each time)until vibration emerges after you release the stick. Then decrease the
gain a little until vibration just disappears. Now the gain is perfect.
Control I : This value generally do not need to adjust
 Course control gain adjustment
The way of tuning the Yaw gain is the same as the way of adjusting the Tail Gyro. If you want fast stick
reaction speed, increase the gain, otherwise decrease the gain. However, the spin of multi-rotor is produced by
the counter torque force, and the magnitude of which is limited. Therefore, large gain will not produce tail
vibration like helicopter, but severe reaction at the start or stop of motors, which will affect the stabilization of
the other directions.
 Vertical control Gain
Vertical control Gain is used for hovering Mode.
Control P : You use two methods to judge if the Vertical gain is good enough: 1) The multi-rotor can lock
the altitude when the throttle stick is at center position; 2) The change of altitude is small during the flight along
a route. You can increase the gain slowly (10% each time) until the vibration emerges along the vertical
direction or the reaction of throttle stick is too sensitive, then decrease 20% of the gain. Now it is a suitable
Vertical gain.
Control I : This value generally do not need to adjust.