User Manual

3. Scroll over to OFF under EXP and select it to turn exponential ON. This will result in
a smoothed throttle curve.
4. Scroll over to Point-3 and select it. Set the Point-3 value to 30%. This will yield a
preliminary throttle curve that provides a good starting point for further adjustments.
The remainder of the adjustments should be made with the engine running and the
aircraft securely restrained so that it cannot possibly move.
Cursor – throttle stick is positioned
over Point-3
0.0%
INH
INH
30.0%
INH
INH
100.0%
Point-L
Point-1
Point-2
Point-3
Point-4
Point-5
Point-H
IN 50 OUT 30
0
L 1 2 3 4 5 H
ENT
LIST
CLR
Pos.0
SW SELECT
THRO EXP
STK INH ON
[
THRO CURV
]
Graph showing a mild throttle curve
with Point-3 set to 30% and all other
points at their default values
Notice that while the throttle is at
50% stick deflection the servo travel
is only 30% because Point-3 is set
to 30%.
5. Warm up the engine to its normal operating temperature. Move the throttle stick to
full idle and slowly advance the throttle 1 click at a time. There should a noticeable
change in RPM for each movement of the stick. If, while moving the stick, it seems
that the engine should be running faster or slower for a given throttle stick position,
select the point that is closest to the vertical line (cursor) and increase the value of the
point if the engine is running too slow or decrease the value if the engine is running to
fast for the stick position. Repeat as necessary until the desired response is obtained
for the entire stick travel.
If more than 1 throttle curve has been identified, return to step 2 and perform the
steps for the additional curve(s).
JR XP9303 Detailed Function Descriptions 55