There are plenty of methods of cutting a throttle on the Taranis, the most simple being a Special Function which sets the throttle channel to -100 when a switch is in a certain position. That's all well and good, but what if the switched is accidentally knocked and the throttle arms again!? This method adds the safety net of the throttle output needing to be a 0 before it can be armed.
The first step to creating this throttle cut is to create a curve for the disabled throttle. This is a simple 2 point curve with both Y at X = -100 and Y at X = 100 set to -100. I named the curve ThC (Throttle Cut).
The next step is to create some Logical Switches which take care of the actual enabling and disabling of the throttle.
L01 constantly checks the position of the throttle stick. The switch will only become active when the throttle position is between -100 and -98.
L02 will only become and remain active if switch SF is in the ↑ position and either L01 or L02 (this logical switch) is active.
The final step is to set the throttle Inputs. First, we duplicate the Throttle Input by right clicking and selecting duplicate. Next we modify the original input so that it's only active if L02 is active. Double click on the input to edit it (see left image). Now we need to edit the the new throttle input so that it activates when L02 is not active, and routes the throttle signal through our throttle cut curve (see right image).
The end result should be the following Inputs and a working throttle cut. With SF off the throttle is disarmed and you will not be able to arm the throttle until the throttle it's self is at the bottom of its travel.
A final thing that can be added is audible confirmation of the throttle cut status using Special Functions