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Nominal Range (LVN)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: lvn.ttl
- Name
nominalRange- Datatype
- Integer
- Definition
- The maximum distance at which a light can be seen (or signal detected) in a homogeneous atmosphere in which the meteorological visibility is 10 nautical miles (clear weather as defined by the International Visibility Code).
- Description
- The actual luminous range will be lesser (or occasionally greater) than the nominal range depending on prevailing weather conditions. The lesser of the geographic range and the luminous range is the range at which a light will first be sighted.
- Accepted
- 2013-10-18
- Defined by
- DFDD
- Physical quantity
- length
- Recommended unit
- Nautical Mile
- Used by
- BC060 Light Sector
- BC040 Maritime Navigation Light
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.