Futaba GY520 - Manual (Page 30)

30
U
SING
GY520 N
ORMAL
M
ODE
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
benefi ts 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.
If you will be using the Normal Mode (also referred to as Rate
Mode) then a few changes to the setup will be necessary. The tail
rotor should be set to 10 degrees of tail rotor pitch (to counteract
torque) when the tail rotor servo is centered. With clockwise
rotating main rotor blades this means 10 degrees of right tail rotor
pitch will be necessary to counteract torque. In addition to this it
will be necessary to use the tail rotor compensation or revolution
mixing functions of your transmitter to help counteract torque.
Please see your transmitter instruction manual for more information
on how to set this up.
If you decide to switch between Normal Mode and AVCS Mode
in fl ight, you must have the gyro re-learn the center position after
making a trim change within the transmitter. To memorize the new
center position simply fl ip the gain switch on the transmitter three
times between Normal Mode and AVCS Mode within one second.
The tail rotor servo will center, indicating that the new center
position has been memorized.
Y520 Mnl.indd 30 Y520 Mnl.indd 30 4/7/2009 7:55:08 AM 4/7/2009 7:55:08 AM