Futaba 9CPS - Manual (Page 36)

Adjustability:
•
More sensitive around neutral. (positive exponential, see example)
•
Less sensitive around neutral. (negative exponential, see example)
•
Adjustable for each direction. (ACRO/GLIDER)
For throttle, exponential is applied at the low end to help nitro and gasoline engines have a linear throttle response, so that
each 1/4 stick increases engine RPM 25% of the available range. (In most engines this ranges from 5-60%.)
Special note for helicopters: Helicopter model types have just a single rate for each switch position rather than a rate for
each side of the servo’s travel per switch position. Additionally, setting the D/R,EXP for each switch position requires
cursoring back to the No. setting and changing the switch position here. Just flipping the switch does not affect the screen
setting, allowing dual rates to be assigned with idle-up and other features on certain switches, and does not require putting
the model in that condition to make modifications.
The helicopter programming also offers you the choice of Cond.. This option allows you to have a separate rate for each
of the 3 controls automatically selected when changing from normal/throttle hold to any of the idle ups, for a total of FOUR
rates available. Simply change the switch choice to Cond. and then use the M
ODE /P AGE B UTTON to toggle through the
4 conditions while setting the rates.
GOAL of EXAMPLE: STEPS: INPUTS:
36
Set up dual rates and exponential in a
HELI model. Open D/R,EXP.
Choose channel.
Choose first switch position.
Set rate and exponential (Ex: high rate
= 95%, 0% exponential.)
Go to 2 nd switch position and set rate
and exponential.
Optional: if using a 3 position switch,
set 3
rd rate.
Optional: assign dual rates to have
one for each condition.
for 1 second.
(If ADVANCE, again.)
to D/R,EXP.
to desired channel.
to UP.
to 95%.
Confirm 0% EXP.
to DN.
Repeat above.
to CT.
Repeat above.
to COND.
Repeat steps above to adjust for each
condition.