On Sat, 3 Dec 2005, Andy Ross wrote:
That sounds like a bug. They are intended to produce identical
behavior. Is it possible you have a yasim binary build from a
different version of the code than your fgfs?
My first thought too.
The file I used was the AN-225-yasim.xml with the only modification of
negating the sign of wing incidence -- to get a view of what yasim
had to say about the model as it was before the recent yasim bugfix.
(Reverting the fix, so to speak: setting wing incidence to -4. No twist
settings in that file) Much to my surprise, yasim spitted it out again
with:
Solution results: Iterations: 10002
Drag Coefficient: 0.000000
Lift Ratio: 40757985280.000000
Cruise AoA: 2.074975
Tail Incidence: -2.490169
Approach Elevator: 0.000000
CG: -7.222, -0.000, 3.603
SOLUTION FAILURE: Solution failed to converge after 10000 iterations
Fgfs, however, happily accepts it.
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