Human, Cultural, Historical and Reference
The Reference Layer: Glossary, Units, Signals and Information Sources glossary (page 2)
The connective tissue of the field: the maritime glossary anchored by the IMO SMCP and the IHO Hydrographic Dictionary S-32, units at sea (the nautical mile, knot, the four tonnage measures, the sverdrup, the decibel re one micropascal), the International Code of Signals and flag etiquette, lighthouses and aids to navigation, traditional seamanship craft, ship’s documents, maritime media and data providers, and the standard scales (Beaufort, Douglas).
260 defined terms.
Showing 10 on this page (page 2 of 2).
Z
- Z-Class Lighthouse Beam
- Generic reference to characterized aid sequence.
- Z-Drive
- Azimuthing propulsion unit common on tugs.
- Z-Pendant
- ICS substitute pennant equivalent reference.
- Zenith distance
- 90° minus altitude.
- Zigzag Maneuver
- Course alteration tactic historically used against submarines.
- Zinc Anode
- Sacrificial anode for cathodic protection.
- Zone description
- Integer hours offset from UTC at sea.
- Zone Time
- Standard time of a 15-degree time zone, used at sea.
- Zulu Flag
- International Code of Signals letter Z, meaning "I require a tug."
- Zulu Time
- Coordinated Universal Time (UTC), the navigation reference.
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