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Minimum Descent Height (MDH) (MDH)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: mdh.ttl
- Name
minimumDescentHeight- Datatype
- Real
- 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.
- Description
- 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.
- Synonyms
- MDH
- Accepted
- 2013-10-18
- Defined by
- DFDD
- Physical quantity
- length
- Recommended unit
- Metre (m)
- Used by
- GA215 Terminal Instrument Procedure Minima
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.