PPRuNe Forums - View Single Post - Pegasus accident in SAW; just reported
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Old 14th Feb 2020, 00:52
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4runner
 
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Originally Posted by CurtainTwitcher
I don't believe this is quite correct. The FMC derived headwind/tailwind component is actually quite accurate, although it does have an averaging function and thus not instantaneous. The crosswind component on the other hand is not reliable. There were other cues, GS, ROD, thrust levers back close to idle and the visual picture would have looked like a rocketship.
There is a good paper on this tha covers FMC wind component calculation: Safety aspects of tailwind operationsSafety aspects of tailwind operations Safety aspects of tailwind operations G.W.H. van Es and A.K. Karwal

it’s the best when FO’s are heads down, on approach, calling out the wind component and parroting the radar altimeter.
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