User's Instructions

Helicopter
(HELI)
Section
– 93 –
Inputting The Pitch Curve Values
1. Press one of the
Up Down Edi
t
buttons until the
PTCV
window appears. The default is for a
linear curve, a straight line from 0 to 100% passing through 50% at hover (center).
2. Be sure you're in the desired flight condition by moving the Flt. Mode and Flt. Cond
switches to their proper position. Remember, you can input separate, independent throttle
curve settings for each flight condition!
3. You begin at set point #1, idle. A small arrow should appear over the number 1 in the
display, and a value of 0% should be shown. Press the
Data +Increase
or
–Decrease
key to
change the setting to your desired value.
PTCV 0
%
ST1
42135
ST2 NORST3
4. When you're finished with Point 1, move to the next point with the Cursor Right key. A
small arrow over the number 2 indicates you are setting the value for Point 2. Note that the
function is inhibited (Inh) to start with. If you leave it, you get a straight line from points 1 to
3. Otherwise, you can change this setting with the Data +Increase or –Decrease keys. You
can inhibit THCV point 2 and 4 by pressing the clear key.
PTCV Inh
%
ST1
42135
ST2 NORST3
5. Repeat this procedure for Points 3, 4, and 5 by pressing the
Cursor Right
key, then adjusting
as desired with the
Data +Increase
or
–Decrease
keys.
6. When you've completed the settings for the first flight condition (NOR), test fly your model.
When you're satisfied with the settings, use them as a basis for the other flight conditions.
Flip the switches as necessary to get into the new conditions, verify on the display that you
are in the desired flight condition, then set all the five points in by going through the steps
given previously.
RVMX
— Revolution mixing
The revolution mixing function mixes pitch commands into rudder (pitch → rudder) in
order to suppress the torque generated by changes in the main rotor’s pitch angle and rotational
speed. You can input independent values for revolution mixing above and below one-half
throttle for each of the NOR, ST1, and ST2 flight conditions. Revolution mixing is disabled
whenever throttle hold (ST3, operated by the Flt. Cond. switch) is on.
For a clockwise-turning rotor, revolution mixing should apply right rudder when pitch is
increased; for a counterclockwise-turning rotor, the opposite should occur. Remember to set the
value for both the top and bottom of the throttle stick's motion.