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Old 28th Aug 2015, 21:01
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EnxAero
 
Join Date: Jan 2013
Location: London
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CAT II with DH>200ft?

Hi,

Im getting confused with a CAT II chart that I have just found. This airport in Spain (EU) used to have a CAT II approach. Recently, there have been a few changes to the runway and also new obstacles have appeared, so the charts have been updated.

It shocks me to see this ILS CAT II with DH greater than 200' (between 233' and 276') . How is this possible? I thought both in the US and in EU CAT II meant 100'<DH<200'.

This implies that the pilot must get visual contact when s/he is around 1km from the threshold, so at that point there is a valley that is more than 240' deep and RAs are around 500'; is the radioaltimeter reading accurate in that case?



Many thanks
EnxAero
P.S. I am not a pilot, but an airport engineer, so I would move the thread to a different forum if necessary.
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