The stay leading from the mast to the bow

Short shrouds which give support to the top of a lower mast.

Short period oscillation in level of enclosed, or partly enclosed, area of water when not due to the action of tide-raising forces.

Loaded with more cargo than a ship can safely navigate with. Drunk.

Removal of worn or damaged gear and the fitting of new gear in replacement.

The record of courses steered and distances traveled since the time a ship's position was last fixed by shore or astronomical observations.

Periodic publications containing details of any alterations to charts, to keep them up to date.

On or near the line of immersion of a ship's hull.

Carry over of particles or contaminant from the filter or other filter materials into the clean side of the air flow.

To retire from a life at sea and settle ashore.

A means of hauling up or lowering a cylindrical object.

Relay to all others in order (a signal repeated from one ship to the next astern in column).

Where the boat is pointed directly into the wind, sails luffing

Is the ratio in absolute units of the actual gas temperature to the critical temperature.

Tool used for transferring course and bearing to and from the compass rose on a chart

A canvas canopy secured over the ship's deck as a protection from the weather (covering).

When a vessel fills with water and sinks.

Surface on which the bearing seal rides in an oil lubricated tailshaft bearing.

Capacity of a compressor is the full rated volume of flow of gas compressed and delivered at certain set conditions.