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Minimum Descent Altitude (MDA) (MDL)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: mdl.ttl
- Name
minimumDescentAltitude- Datatype
- Real
- Definition
- A specified minimum altitude in reference to Mean Sea Level (MSL) in a non-precision approach or circling approach below which descent must not be made without the required visual reference.
- Synonyms
- MDA
- 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.