RE: Crosswind Landings - Crab or side slip??
I'm not sure "weathervaning" is a technical term, but I believe the areodynamicists will tell you there's no "wind" on a flying plane, other than the one caused by the motion of the plane itself, which is always head-on. So there's nothing forcing the plane to turn. But that assumes a steady-state condition, or a plane with zero inertia. It doesn't account for gusts and the fact that my planes may be less-than perfectly straight.