A vessel's position determined by observation and navigational data.

Is one in which there is no liquid injection and/or liquid circulation for evaporative cooling or sealing.

A short piece of line spliced into the end of the clapper by which the bell is struck. Traditionally it is finished off with a double wall knot crowned in its end.

A multihulled boat with three hulls.

First attempt at best offer that can be matched

Air pressure

A publication predicting the time and height of high tide and low tide.

A pressure below that of the existing atmospheric pressure taken as a zero reference.

The distance the ship's side falls in towards the center line above the load water line. Opposite of flare.

Imaginary lines drawn through the north and south poles on the globe used to measure distance east and west of the prime meridian at Greenwich, England (designated as 0

Sailing in the same direction as the wind with the wind coming from the stern.

Method of securing a line around a spar by taking the standing part around the spar, then a half hitch around itself and the end tucked three or four times around its own part.

Break; e.g., the line parted under strain

Area of high barometric pressure where the wind circulates clockwise in the Northern Hemisphere, and counter-clockwise in the Southern Hemisphere. These are fair weather systems with light or moderate winds.

Articles handled only under certain conditions.

A spring loaded pressure relief valve actuated by the static pressure upstream of the valve. The valve opens normally in proportion to the pressure increase over the opening pressure.

The athwartship portion of a hull at the stern. The flat, vertical aft end of a ship.

To unload a shipping container.

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Abbreviation for "Cubic Meter" (capital letters).