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2 Cones Base to Base (TZP_11)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: tzp_11.ttl
- Name
twoConesBaseToBase- Attribute
- TZP Topmark Shape
- Definition
- Two cones, one above the other, with their bases together in the centre and their vertices pointing up and down.
- Description
- A cone is a solid figure generated by straight lines drawn from a fixed point (the vertex) to a circle in a plane not containing the vertex. The International Association of Lighthouse Authorities (IALA) uses two cones, base to base, as an east cardinal mark.
- Accepted
- 2013-10-18
- Allowed for
- BC010 Maritime Navigation Beacon
- BC020 Buoy
- BC041 Maritime Navigation Light Support
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.