Will | Huan
Ah, well, I suppose it's just as well that not every is as at the mercy of your charms as I am. :) :)
I hope you'll not think me terribly impolite if I confess to some surprise that Wei Wuxain should have a head for such things. But I'll happily leave it to him; I take very little pleasure in such calculations myself, and can hardly boast of any strong understanding of aerodynamics myself.