Idle Up
Normally, flight mode 1 and 2 are used to increase engine RPM
below half stick for forward flight maneuvers (idle up), and at
this time any other trims are not active as the throttle will only
operate/follow the current throttle curve values.
Exponential Throttle Curve Function
With the XP8103 system, individual throttle curves are selectable
to be either straight (linear) or curved (exponential). To select an
exponential curve, press either of the CH keys until EXP OFF
appears on the throttle curve screen. Next press either the + or -
key to activate the exponential feature (an “on” will replace the
“off” on the screen). With the exponential function ON, you will
notice that any “sharp” angles of the throttle curve will become
more “rounded” or “smooth,” creating a more equal throttle
servo movement during the entire throttle curve range.
4.8 Throttle Curve (Function Mode), cont.