Minimum Descent Height

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Term Minimum Descent Height
Status


Mandatory for


Contexts


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Synonyms


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Broader term


Narrower term


Abbreviation

  • MDH

Definition

A specified minimum height in a non-precision approach or circling approach below which descent must not be made without the required visual reference.

Definition Source

  • AIFDD

Note

Minimum Descent Height (MDH) is referenced to the aerodrome elevation or to the threshold elevation if that is more than 2 metres (7 feet) below the aerodrome elevation. A minimum descent height for a circling approach is referenced to the aerodrome elevation.