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Thread: Use of Radio Altimeters
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Old 29th Aug 2005, 05:22
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Transition Layer
 
Join Date: Jun 2001
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Radalt only used for Cat 2 or Cat 3 ILS.

Otherwise use MDA (i.e. based on QNH) for all non-precision approaches and Cat 1 ILS.

There was a thread in Tech Log about it not that long ago.

DH v MDA

Cheers,
TL
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