Curtis L. Olson wrote:
> However, I know Andy's intension was to produce "plausible" behavior
> across all flight regimes as best as can be guessed at, and there is
> clearly a bug where stalls come *way* to early in the negative aoa
> regime.

Yes, this is a real bug.  It's not the "stall" per se, I think, but a
discontinuity somewhere in the lift curve.  Every time this comes up I
end up re-reading the (admittedly hairy) Surface.cpp code looking for
it, and get lost.  The stall handling itself, though, is fairly
transparent and looks clean.  Something else is going on.

I should probably take some time and write up a test rig that graphs
the lift curve that emerges from the model, but that requires
generating a Surface object with real world coefficients, which
requires running it through the solver on a real model, which has
interactions that kinda obscure the "pure" behavior of the Surface.
Ick. :(

Andy

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