Originally Posted by Con-Trail
I don't think weathercocking comes into the equasion. As far as I know weathercocking is turning around the main gear.
In cross wind the tailplane is being pushed aside, causing a yawing moment into the wind.
That is weathercocking. The tailplane is being pushed aside causing a yawing moment around the main gear (if the landing gear was not on the ground there would be no yaw.)
ViciousSquirrel, the crosswind situation where you have a critical engine is when in a large aircraft on take-off, not a light twin.