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Old 19th May 2006 | 09:43
  #7 (permalink)  
IO540
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From: EuroGA.org
Taxiing at 25kt is indeed the problem for many types, but remember that the reported surface wind is usually measured at the top of a pole, 5m or 10m high. So the actual surface wind (affecting a taxiing aircraft) may be a lot less.

The real risk which remains even with strong wind down the runway is wind shear. You always get wind shear (unless there isn't any wind to start with).

With 25kt reported surface wind, gusting 35kt, you will probably have 40-50kt at say 100-200ft. And more higher up but that's irrelevant. This means you could see a loss of airspeed of 25kt or more on short final. In a TB20, I don't have a problem with this (flying the final at 80kt+, 59kt stall speed in that configuration, and having 250HP to play with) but I know a man who bent a very expensive 250HP plane landing in what was probably 50kt's worth of wind shear.

Basically you have to be flying the final approach at a slightly higher speed, say 10-20kt higher, and be ready to put a lot of power on in the last few seconds.
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