FMC Windspeed delay on 737?
Does anyone know how "old" the information is regarding windspeed and direction on the 73? Is it different with the GPS input on the NG?
The reason for asking is that some people use this figure to decide whether a landing will be, for example, outside tailwind limits. But I think there will be a certain amount of delay while the FMC worlks it all out. I just don't know how much delay, and the tech manual doesn't help.
So you could be using the winds at 100 feet, 200 feet or whatever.
Any techies know about this?