Spektrum BEAST X AR7210BX Mode D'emploi page 28

EN
Nitro Governor with Throttle Channel Only
If you do not use a separate control channel for the RPM Governor, throttle servo and RPM
Governor are solely controlled by the throttle channel. The control range of the throttle channel
is divided into two parts; below the center position, the throttle servo is controlled manually by
the throttle channel. The RPM Governor is switched off and the servo output range is doubled,
so that the throttle servo can be moved over the entire range. Once the throttle channel is
moved (switched) to the upper area, the RPM Governor will activate, spool up the rotor and
try to hold the preset RPM. Similar to the above description for electric models, you make
the throttle curve a horizontal line, so that regardless of the position of the throttle stick, the
Spektrum AR7210BX will always see the same throttle value and so the preset RPM will stay
the same. So at least two flight phases are necessary: (1) that the throttle curve goes only up
to the middle and in which the motor can be controlled by hand, i.e. for starting the motor and
(2) a flight phase that activates the RPM Governor and the throttle curve is used to preset the
desired rotor head speed.
Normal flight mode
• RPM Governor off
• Throttle stick controls
throttle servo
A third flight mode may be used for autorotation: Here the throttle channel is constantly set to a
value close below center position (between 40% and 50%). When you switch to this flight mode
once the governor was active, the throttle servo will move to idle set at Menu Point B. When
switching back to governor mode, i.e. when you want to bail out from autorotation, the rotor will
spool up at an increased rate (this does not apply if you set the bail out spool up rate at Parameter
Menu Point K as high as the initial spool up rate). Alternatively, if it is switched back to the flight
phase with manual control and throttle is moved below 40%, autorotation mode is canceled and
the next time you switch on the RPM Governor, the rotor spools up slowly.
100%
50%
0%
Autorotation*
• RPM Governor on
standby
• Increased idle position
*Only effective when RPM Governor was active before
Idle up 1
• RPM Governor on
• 1800 RPM = 75%
100%
50%
45%
0%
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100%
75%
50%
0%