Read the original poster's question. He asked, "...say you're dead on
centerline on landing, *and all of a sudden* a crosswind
from the left starts blowing..." That's a gust and he wanted to know what
force was turning the plane into the wind. An "all of a sudden wind" will
"weathervane" the plane. That was the question, that is the answer...we've
been splitting hairs for 50 posts now.

Kobra




"Verbs Under My Gel" wrote in message
om...
"Kobra" wrote in message
...
Do I fly?! Don't be a wise ass...why do you think they call it
"weathervaning"? What does a weathervane do? It turns the
"weathervane"
into the relative wind. An airplane is a weathervane too and the wind
can
and does turn an airplane into the relative wind. Definition:
"weathervaning".

Kobra


Yes, but a weather vane's COG, if you will, is affixed to terra firma,
unlike an airplane in flight.