On Monday 31 May 2004 17:13, Andy Ross wrote:
> Lee Elliott wrote:
> > The problem with using spoilers for roll control in YASim is that
> > because the spoiler range is clamped to 0 to +1, when you 'split'
> > the input for differential control it only works on one side of
> > the a/c - through the 0 to +1 range - to get it to work on the
> > other side it needs a -1 to 0 range but it can't do it, or at
> > least it couldn't when I last tried.  That was on the YF-23, and
> > I was trying to use the flaps differentially, instead of the
> > spoilers, but I think the same thing applies (the YF-23 used the
> > ailerons and flaps in opposition for speed-braking and could
> > deploy them on one side only for manuevering).
>
> I'm not sure I understand the problem here.  Control mappings are
> allowed to cover any arbitrary output range, with clamping.  If
> you specify a src0/src1 that doesn't cover the whole input range,
> values below/above the range you specify will be clamped to the
> appropriate dst0/dst1 value.  Can you post what you were trying
> to use?
>
> Andy

I no longer have the files where I was trying to do it so I just quickly tried 
binding the aileron control input to the flaps and got a different result to 
what I was expecting.  As I remember it, when I tried to do this before the 
left (I think) flap would operate as normal through it's +ve range but not 
through the -ve range i.e. it wouldn't rotate up, and the right flap wouldn't 
move at all - this was with split=true on the control-input.

When I just tried it now, both flaps moved through the full -ve to +ve range, 
but both moved in the same direction and the split tag seemed to be ignored.

I'm confused now:)

LeeE

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