may respond slowly to disturbances and may not hold its orientation very
stably. The pilot may feel that the helicopter is “loose” in this situation.
The second potentiometer, Pot 2, is for adjusting the elevator and aileron
for forward flight (feedforward). Increasing this setting by turning Pot 2
clockwise will increase the response of the helicopter to aileron and elevator
inputs. If this setting is set too high, the helicopter might feel jumpy, and, if it
is set too low, the helicopter may feel sluggish in its cyclic response.
23
Fine Tuning Rudder
Tuning Rudder for Optimal Performance
There are three adjustments possible for the rudder or tail. The first is
tail gain, which can be adjusted either on the transmitter for radios with 8
or more channels or using Pot 3 when using transmitters with 7 or fewer
channels. For example, on the provided 8-channel transmitter, tail gain can
be increased by turning the tail gain knob clockwise. Increasing
this
gain
will make the tail control stiffer. However, increasing the gain too much may
cause the tail to oscillate or “hunt.”
The second tail adjustment is Tail Dynamic, which is changed using Pot 4.
Turning this pot clockwise will increase tail dynamic. Increasing tail dynamic
may improve tail acceleration and deceleration, helping the tail respond
more rapidly to your input. However, increasing tail dynamic too much may
cause a rapid vibration in the tail, which may damage the tail servo. In
general, it is beneficial to use the lowest tail dynamic setting for which good
tail performance can be achieved.
The third tail adjustment is heading lock gain, which is available in the
parameter menu. See description on page 22 of this manual.
The flybarless unit should fly well out of the box, but additional fine-
tuning
may be desirable to achieve optimal performance. We recommend
that the pilot increases tail gain until the tail starts to oscillate and then
decreases it until the tail is steady. Then, tail dynamic can be added to
make stops sharper. If the tail starts to oscillate quickly after a sharp stop,
the tail dynamic is too high. Finally, the pilot can increase the heading
lock gain until the tail starts to “hunt” back and forth, and then decrease
it slightly. Oscillations caused by excessive tail dynamic are typically very
fast, whereas oscillations caused by excessive gain are a little slower.
Oscillations caused by excessive heading lock gain are typically more
gentle. Note that these are only guidelines and are not always the same for
each helicopter.
Summary of Contents for OPTIM 300 CP
Page 33: ...33 NOTES...
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