40
Travel Adjustment ( endpoints )
Using endpoints to adjust to the limits of how far the servo is allowed to move is very convenient for fast
set-up. If binding occurs simply reduce the travel in that direction. ** Note: by changing one side only
(high or low stick) the servo travel is no longer linear which will tend to make that control surface un-
stable. It is better to set the high/low adjustments the same, or make actual pushrod adjustments.
Mechanical Sub Trims
The sub trims on the outside of
your transmitter are used to
fine tune the servo center
positions while testing or in-
flight. If the trim has to be
moved more than 2-3 divisions
then readjust the linkage length
to set the trim back in the
center.
Exponential
The exponential function allows adjustment
of how sensitive the cyclic controls are when
the machine is hovering. Following the
setup in this manual, an exponential amount
of 25-35% will make the helicopter much
easier to control.
Pitch & Throttle Curve Adjustments
The ultimate goal for adjusting the curves on your
helicopter is to reduce how much the tail rotor moves
during flight and aerobatics. This leads to maintaining
a consistent main rotor RPM which can only be
achieved through adjusting the individual values
which control the pitch and throttle at a given stick
position.
Dual Rates
For beginners ( using the flybar weights )
the dual rate values should be set at 100%
for both switch positions until hovering has
been mastered.
Normal position:
(high rate) 100%
Switch position 1:
(low rate) 75%
Now that the servo installation into the helicopter is finished the following pages should be reviewed. As
various types of radios can be used to setup the helicopter, some of the following information may not
apply.
Final Adjustments - Radio Setup
Pitch Curve Adjustment
The following chart shows the values for the collective
pitch measured in degrees which are made on the
helicopter using a pitch gauge. The Travel Adjust-
ment function (if available makes these settings easy).
For the beginner it is recommended to set the low
stick position to 0 degrees to avoid damaging the
helicopter while reducing the power during the first
few flights. These settings will need slight adjustment
to keep the helicopter at a consistent height at mid
stick.
Flight Setup Method
Mode
(low stick)
(mid stick)
(high stick)
N
Hovering
-2
5
9
1
Stunt & Aerobatics -8
5
9
H
Autorotation
-8
5
12
Pitch Curve Values (by degrees)
( N - Normal flight mode, 1 - Stunt mode one, H - Throttle hold)
Servo Direction (Servo Reversing)
Check that all servos move in the correct
directions, see pages 23-26.
