RE: [Jsbsim-devel] Aerosurface scale

[Jon S. B. <js...@ha...>]

> I have a quick question regarding the aerosurface component.
> What does the gain represent? I currently have the following elevator
> control:
>
>     <COMPONENT NAME="Elevator Control" TYPE="AEROSURFACE_SCALE">
>        INPUT         fcs/pitch-trim-sum
>        MIN            -0.5
>        MAX           0.5
>      </COMPONENT>

You are asking about the "gain" in the aerosurface scale? This control
appears to take the pitch-trim-sum value (the output of the component before
it) - which, incidentally, is already clipped (limited) to +/-1 - and "maps"
the input to a range of +/-0.5. This is effectively halving whatever is
input.

You'd get the same effect by simply using a pure_gain component with a gain
of -0.5.

Jon