Wind on final, how long ?
When giving information to the pilot about the wind on final, what time scale should be taken into account ?
We have the option to select instantaneous wind, wind over the last 2 minutes, or the wind over the last 10 minutes. Of course, the minima and maxima of those timings are very different.
Are there any procedures published about this ?
Reason why I ask is because we have a discussion at my facility about what wind we should give the pilot, thereby reducing his playtime if we give to strong crosswind (which is what happens when we select "last ten minutes - wind" and give him the gusts)
Thanks for your help everyone.