When taxiing, taking off and rolling out we are told to use cross-wind correction inputs. Assuming a headwind, you bank into the wind by raising the aileron on the windward side and lowering the other aileron.
However, it appears that just before you take off, even with the wings level, holding the ailerons as above helps the plane avoid skidding sideways on its wheels. I understand the physics once you are airborne and the wings are no longer level (you will slip into the wind). But what I don’t understand is why holding up aileron on the windward side helps prevent skidding sideways, even with the wings level.
How do the physics work to prevent sideways force on the gear? Or am I imagining that the wings are level and in fact the windward wing is lowered?
I’ve felt this more strongly in a Citabria 7ECA or similar light tailwheel, high-wing aircraft, but I think it also applies to a tricycle-gear C172 or similar.