"The wind vector cannot give you any sensible information once the wheels are on the ground."
Would it be able to give you any data at all (useful, sensible or otherwise)... say a value of wind along the runway? I was never any good at vectors, but wouldn't airspeed minus groundspeed give you a (resolved) wind component along the runway?
I have the somewhat vague feeling I've read/heard about an aircraft with a ground wind display, but I don't know where or when ...making it hard to let me put this one to rest
Thanks.
Cheers.
Q.