Impressive and tractable... that last is really important. If he's already discretized the wing and has loads, well, that sounds a lot like the jumping-off point we used to always get to with a rigid body model. We'd be able to achieve a certain level of agreement to test, then we'd start wondering about compliance effects. Sometimes, we'd run into crazy ones - like tire memory (tires aren't simple at all), but mostly, it was the usual suspects; frame flex causing compliance-based over/under steer effects, that kind of crap. There's an analog there, given that the tire is like the wing, the slip angle like alpha. Beyond that, it'd be great to hear from the coaders on these matters. In some ways, I could see them really not caring. Otoh, what's correlation worth... to a "game" and a small subscriber base? What's low-cost correlation worth to anyone out there with no access to deep pocket places like Bell or MSC or Ford? There's got to be a cross-sell opportunity there.