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Decision Altitude (DA) (DA1)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: da1.ttl

Name
decisionAltitude
Datatype
Real
Definition
A specified altitude in reference to Mean Sea Level (MSL) in an approach with vertical guidance at which a missed approach must be initiated if the required visual references to continue the approach have not been established.
Synonyms
DA
Accepted
2013-10-18
Defined by
DFDD
Physical quantity
length
Recommended unit
Metre (m)
Used by

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.