Originally Posted by
scifi
It seems as if we are assuming we don't know the actual windspeed, when this can be found by asking the nearest ATC unit for their ground windspeed, then adding the correction of twice that and add 30 degrees to find the wind velocity above 1000 ft.
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Yeah, I'm sure they would have had an accurate ground wind reading for AF 447.
Never mind that I've seen wind speed over 150kts without hurricane warnings on the ground.
https://www.pprune.org/professional-...nd-studies-14/