Andy,

For what it's worth, I can reproduce this.

Regards,

Curt.


Alex Romosan writes:
> Andy Ross <[EMAIL PROTECTED]> writes:
> 
> > OK, fixed. The model was almost converging, but wasn't getting close
> > enough to the threshold. It was oscillating around the right values,
> > but each iteration moved to far to be considered "done". This is a
> > problem with this kind of heuristic. Just moving the solution
> > "precision targets" a tiny bit was sufficient to fix the problem. I
> > should probably make this number settable in the configuration file,
> > for aircraft that run into problems.
> 
> after updating to the latest cvs, i can't fly the a4-yasim anymore:
> 
> Finally initializing fdm
> Start common FDM init
> ...initializing position...
> ...initializing ground elevation to -0.000431126ft...
> ...initializing sea-level radius...
>  lat = 37.6117 alt = -0.000431126
> ...initializing velocities...
> ...initializing Euler angles...
> End common FDM init
> YASim solution results:
>        Iterations: 10002
>  Drag Coefficient: 9.68511
>        Lift Ratio: 168.785
>        Cruise AoA: 2.77861
>    Tail Incidence: -3.89015
> Approach Elevator: -0.557698
>             CG: -0.721, -0.000, 0.092
> YASim SOLUTION FAILURE:
> Solution failed to converge after 10000 iterations
> 
> i wonder if the above-mentioned fixed broke the a4? the j3cub works.
> 
> --alex--
> 
> -- 
> | I believe the moment is at hand when, by a paranoiac and active |
> |  advance of the mind, it will be possible (simultaneously with  |
> |  automatism and other passive states) to systematize confusion  |
> |  and thus to help to discredit completely the world of reality. |
> 
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-- 
Curtis Olson   IVLab / HumanFIRST Program       FlightGear Project
Twin Cities    [EMAIL PROTECTED]                  [EMAIL PROTECTED]
Minnesota      http://www.menet.umn.edu/~curt   http://www.flightgear.org

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