THRO CURV – THROTTLE CURVES
Accessing the Throttle Curve Function
H-22
H-23
The X9503 2.4 offers up to five (5) separate throttle curves
with up to seven adjustable points per curve. This function
allows you to customize the throttle curve and pitch curve
together to maximize engine performance at a particular
pitch setting. Once the throttle curves are established, you
can activate each in flight using the 3-position flight mode
switch. If you’ve activated the additional 2 flight modes
(numbers 3 and 4) in the Device Select portion of the
system mode, an additional switch will be used to activate
these modes.
The flight mode switch offers three selectable ranges:
N=Normal, 1=Stunt 1, and 2=Stunt 2.
Optional: 3= Stunt 3, and 4= Stunt 4
Use the N (Normal) position as the hover throttle curve.
Use positions 1 and 2 (Stunt 1 and Stunt 2) for aerobatic
maneuvers and forward flight. Modes 3 and 4 are optional
flight modes. Use these with aerobatic maneuvers and
forward flight.
Note
: The throttle trim and hovering throttle levers
are only operable when the flight mode switch is in
the normal position. Thus, in the 1 or 2 positions,
these two functions have no effect. Also, adjusting
the hovering throttle lever and throttle trim has
no effect on the input values of the throttle curve.
Each of the five points of the throttle curve are
independently adjustable from 0–100%. These five
points correspond to the position of the throttle stick.
The transmitter is preset at the factory to the throttle curve
as indicated by the solid line in figure 1 above. You can
activate individual middle points and increase or decrease
their values as desired.
The throttle trim lever position affects the low-point
position as shown when in the Normal mode Throttle
Curve.
for points 1, 2, 4 and 5. These values are 16.5%,
33%, 66.5% and 83.5% respectively if no value
changes are made to any other points. If you change
any of the other points while these were inhibited,
the inhibited points change to plot a smooth curve.
To keep this from happening, highlight each point and
press the
Rolling Selector
twice to activate each. Repeat
as necessary. You can then fully adjust the values of these
points with the
Rolling Selector
. To inhibit the points,
highlight the desired point with the
Rolling Selector
,
press the
Rolling Selector
to open the point, then press
the clear key (
CLR
) to inhibit.
1. Turn the transmitter ON.
2. Press the
List
key simultaneously to enter the
Function Mode.
3. Roll the
Rolling Selector
to highlight the
THRO
CURV
function, then press to access.
Note
: The letter/numbers directly to the right of
THRO CURV at the top left of the LCD display the
current Flight mode switch position.
Use
NORM
for hover curves and 1, 2, 3, and 4 (3 and
4 optional) for stunt curves. This examples shows the
hovering curve.
4. Highlight the desired throttle point to be adjusted.
Press the
Selector
to open the point value, then roll
the
Selector
to increase and decrease the point value.
5. To set curves for flight mode switch position 1,
highlight
NORM
with the
Selector
, press, then
select ST-1 from the drop down box and repeat
steps 4 and 5.
6. To set curves for flight mode switch positions 2
through 5, repeat step 5 above.
7. To exit the Throttle Curve function, highlight the
LIST
with the
Selector
, and press.
Note
: In each curve, the factory setting indicates INH
Note:
If using a governor, generally the throttle curves in
stunt 1 and stunt 2 are set to flat lines at 100% throttle,
allowing the governor to control the throttle servo.
Figure 1: Throttle Curve Normal
Figure 2: Throttle Curve, Stunt 1
Throttle Curve, Stunt 1
Summary of Contents for X9503 2.4
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