in the manual it says to set the rudder to motor for esc driven tail
were do i go to do this

I must confess that I did not find the setting either but I don’t have a uSpirit and there may be a special setting for it.
Here are a few notes that may get the conversation started:

“ With µSpirit units it is possible to enable support for the tail rotor driven by dedicated motor. In this case two ESCs are used, where Rudder ESC is connected at the CH4 port. Important thing is to set Limits/Rudder ESC - range appropriately since these are defining available Throttle range for the ESC from 0 to 100%. Normally this parameter is available in the Setup Wizard.”


I can however point out a few things:

1) The servo setting tab: Leave the rudder “servo” setting at default settings of 1520us and 50hz
2)Limits tab: 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.

this is for a 60 size heli
useing spirit pro
does that make any difference

Ron, you put his in the Aero section. Should be in the Heli section.