voyage data recorder
very high frequency. Radio frequency
|viscosity||(Latin: viscum - tenacity) Degree of resistance to flow in a fluid or semifluid for gas, caused by internal friction|
very large crude carrier (200,000-319,999 dwt)
very large gas carrier
very large ore carrier
voice over internet protocol
Used to describe a document giving details of a vessel's previous ports of call, including arrival and departure dates and times, often required by countries with cargo or country boycotts in place. This document has mainly been superseded by ISPS pre-arrival document requirements.
|VTS, VTMS VTMIS||
Various types of vessel traffic management system. These are usually radar assisted systems to advise masters and pilots of other vessel traffic in their vicinity within a waterway.