FeiYu Tech FY-91Q - Manual (Page 4)

(4) Letter Letter Letter
Letter
D D D
D
Letter D represents the degree of control given by the controller
which is used to prevent moving to the axis(X/Y) when the aircraft is
in flight.
If the value is too small, the heading hold function of the aircraft
will be poor when directional changes are carried out.
If the value is too high, oscillations will occur during flight.
4. 4. 4.
4.
Other Other Other
Other
Control Control Control
Control
(1) Altitude Altitude Altitude
Altitude
Compensation Compensation Compensation
Compensation
Altitude Compensation is the degree of control to compensate power in the
process of positioning movement. That is, the amount of power used to change
airframe position during flight.
Example, when altitude is lost during descent, Altitude Compensation is used to
increase power to compensate the lost of propeller lifting force.
Note that if the descent altitude lost rate is too fast resulting in poor stability, you
should increase the value of this parameter.
(2) (2) (2)
(2)
Speed Speed Speed
Speed
Control Control Control
Control
Speed Control is the degree of input used to control the entry
speed rate to a target position.
The aircraft will reach the destination with a certain speed when
near the target. The FY91Q will give a Speed Control input for either
deceleration or acceleration.
If the Speed Control value is too small, deceleration or
acceleration may be initiated too slowly resulting in the aircraft
deviating the objective hovering position.