Model Setting Section
CHD—CONDITION HOLD
This function may be used to limit the maxi-
mum speed of the engine so that you may adjust
flight conditions when the engine is running. The
maximum throttle position is settable, and an
alarm indicates that the function is operating. The
function is especially useful for helicopters, be-
cause it will prevent the engine from racing dan-
gerously when adjusting the Idle-Up settings.
While this function is active, the throttle oper-
ates on the default condition throttle curve, and
mixing is applied as normal, except the throttle is
not allowed to move past the set point.
You must deactivate this function when you are
through making adjustments. The system will not
allow you to deactivate this function in either of
the following states:
1. When all the flight condition switches are off
2. When the throttle stick is lower than the set
point.
In either of these two states, you will receive the
warning message "TO
INHIBIT TURN OFF
SPECIAL CONDITION AND LOWER THROT-
TLE PAST MAX SET POINT", and will not be
allowed to turn off the Condition Hold function
until the states are turned off.
Condition Hold Setting Procedure
Activation of command In the Model Menu. press the
CHD key to get the function modification menu.
Activate Mode
Selection Keys
Maximum
Throttle Travel
Return to Model
Menu
Activate/Inhibit Keys
Use the A key to activate mode setting, then press the
ACT or INH keys ( F and G ) to activate or inhibit
the condition hold function.
Throttle Servo Maximum Throw Setting You now set
the amount of throttle servo throw. Press the B key to
activate throttle travel setting, place the throttle stick in
the desired position, and then use the SET (F) key to
enter the position into memory. Use the END (N) key
to leave this menu.
NOTE: You may also activate the condition hold func-
tion from the Condition menu by pressing the
M key, or from the Normal Display by pressing
the G key.
Model Setting Section, Page 48
