> Andy Ross
> 
> Vivian Meazza wrote:
> > Yes, this problem was interesting. I set up 2 weights thus:
> >
> > /yasim/weights/tank-100gal-lbs[0] /yasim/weights/tank-100gal-lbs[1]
> 
> Are you sure you got the <weight> definition right in the 
> YASim configuration file?  The property definitions look 
> fine, but they're only half the problem.  You need to tell 
> YASim to read those properties, and where to put the mass 
> value that it finds.
> 

Yes, pretty certain, coded thus:

<weight x="-6.85" y="2.83" z="-0.33" size="0.2" 
        mass-prop="/yasim/weights/pylon-inboard-lbs"/>
<weight x="-6.85" y="-2.83" z="-0.33" size="0.2" 
        mass-prop="/yasim/hunter/weights/pylon-inboard-lbs"/>
<weight x="-6.4" y="2.83" z="-0.72" size="0.5" 
        mass-prop="/yasim/weights/tank-100gal-lbs[0]"/>
<weight x="-6.4" y="-2.83" z="-0.72" size="0.5" 
        mass-prop="/yasim/weights/tank-100gal-lbs[1]"/>

YASim didn't complain anyway, and the model flies just fine.

My analysis is that the problem lies here:

<yasim>
   <weights>
         <pylon-inboard-lbs type="double">45</pylon-inboard-lbs>
         <tank-100gal-lbs type="double">150</tank-100gal-lbs> <!-- dry
weight -->
--> <tank-100gal-lbs type="double">150</tank-100gal-lbs>  <!-- dry weight
-->
   </weights>
 </yasim>

I think it should work, and it _looks_ as if it does: certainly when you
browse internal properties it looks right, but I can't set the second [1]
tank to zero.

Regards

Vivian 




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