Draining plug hole for a vessel when slipped.

Related Terms


A packing which surrounds the propeller shaft as it passes through the vessel's hull and prevents sea water from entering the vessel through the hole in the hull.


1) A tapered cylinder fitting into a hole to seal a compartment. 2) The pattern on which the GRP mould for a hull is laid.


Cargo Control Room - the place where the loading or unloading of a tank vessel is controlled and monitored. Usually contains pump controls and vessel monitoring equipment.


A float or low, flat-bottomed vessel to float machinery such as cranes, capstans, etc. or to support weights such as floating bridges boat landings, etc.


A running light placed on the centerline of a vessel showing a continuous white light from dead astern to 67.5° to either side.


A system used by ships and Vessel traffic Service (VTS) principally for the Identification and the locating of vessels. AIS provides a means for ships to electronically exchange ship data including: Identification, position, course, and speed, with other nearby ships and VTS stations.


  1. The underside of a vessel; the portion of a vessel that is always underwater.
  2. A cargo hold.


A tapered piece that can be driven in a tapered hole to hold together an assembly of machine or structural parts.


The location on a vessel a person goes either during an emergency or a drill to prepare for one. i.e. a Muster Drill. If a person is believed missing, all hands would report to their muster station for a head count.


All countries require that the importer make a declaration on incoming foreign goods. The importer then normally pays a duty on the imported merchandise. The importer's statement is compared against the carrier's vessel manifest to ensure that all foreign goods are properly declared.

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