Re: [Jsbsim-devel] Aerosurface scale

[Sam H. <sam...@gm...>]

Jon S. Berndt wrote:

>>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.
>  
>
Ok, that's what I thought. Thanks!