ParkZone PKZU1980 - Manual (Page 8)

8 EN
Settings for Control Horns
The illustration shows factory settings for linkages
on the control horns. After fl ying, if you want to
modify control throw, carefully adjust the linkage
positions for desired control response.
Rudder Elevator
Control Centering
Before fi rst fl ights, or in the event of an
accident, make sure the fl ight control surfaces
are centered. Adjust the linkages mechanically if
the control surfaces are not centered.
Use of the transmitter trims may not correctly
center the aircraft control surfaces due to the
mechanical limits of linear servos.
1. Make sure the control surfaces are neutral
when the transmitter controls and trims are
centered. The transmitter sub-trim must be
set to zero.
2. When needed, use a pair of pliers to carefully
bend the metal of the linkage (see illustration).
3. Make the U-shape narrower to make the
connector shorter. Make the U-shape wider
to make the linkage longer.
Centering Controls After First Flights
For best performance with AS3X, it is
important that excessive trim is not used. If
the aircraft requires excessive transmitter trim
(4 or more clicks of trim per channel), return the
transmitter trim to zero and adjust the linkages
mechanically so that the control surfaces are in the
fl ight trimmed position.