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Transition Altitude (TNA)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: tna.ttl
- Name
transitionAltitude- Datatype
- Real
- Definition
- The altitude at or below which the vertical position of an aircraft is controlled by reference to altitudes.
- Accepted
- 2013-10-18
- Defined by
- DFDD
- Physical quantity
- length
- Recommended unit
- Metre (m)
- Used by
- GA028 Terminal Instrument Procedure Transition
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.