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 _______________________________________________ Flightgear-users mailing list Flightgear-users@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-users 2f585eeea02e2c79d7b1d8c4963bae2d