Translations:Configuration/441/en
From Spirit System Manual
Micro helicopters and µSpirit: When Tail rotor is driven by a dedicated motor, the Rudder ESC must be connected at the CH4 port. Rudder end-points are then used to set available Throttle range for the Rudder ESC from 0% (Stop) to 100% (Full). We recommend to set Stop limit to 126 and Full limit to 150 for the beginning.