Wind value in FMS
Dear all,
I'm an Air traffic controller and I'm working on a project for the italian provider of ANS concerning data exchange between a/c and ground systems.
At this time, I got a question for the pilots attending the forum: is the wind value inserted in FMS for the Flight profile calculation purposes a forecasted one? If yes, how many hours before the flight it has been calculated?
And, is there any chance to update the value (direction, strenght) when airborne?
Thanks