Loose ends of line left hanging over a ship's side.

An electrical discharge caused by certain atmospheric conditions, which takes place around the rigging. Known by many other names, it was regarded by many superstitious seamen as a favorable omen, foretelling the end of stormy weather. And others believed ...

(1) An engine. (2) The act of using an engine to move a boat.

Alert (pep it up!).

The fluid entering a component.

The lifting power. It may be measured by the volume of a watertight hull above the load water line.

A rope passed around (center) a boat or other object for hanging.

A fix taken by taking bearings of a single object over a period of time. By using the vessel's known course and speed, the location of the vessel can be found.

An insurance term referring to any defect or other characteristic of a product that could result in damage to the product without external cause (for example, instability in a chemical that could cause it to explode spontaneously). Insurance policies may ...

A measurement applied to filters or filter media to indicate the particle size at which suspended solids above that size will be removed.

A term which describes the rising of warm air above cold air when two air masses of different temperatures, humidity and pressure meet.

To drag the bottom for an anchor. Also, large oars used in small vessels to force them ahead.

In the middle portion of the boat - Roughly halfway between a ship's stem and stern, and where the beam usually is the widest.

Lights required to be shown on boats underway between sundown and sunup.

The bearing surrounding the propeller shaft where it exits the hull.

Filtering device used to remove the solid debris from the cooling water.

A buoy on the race course around which boats must turn.

To intercept the wind. A vessel or highland to windward is said to becalm another. So one sail becalms another.

The mark stencilled in and painted on a ship's side, designated by a circle and horizontal lines to mark the highest permissible load water lines under different conditions.

Tassels of unraveled line, yarns, etc. which are lashed around chafe spots such as spreaders to prevent chafe on sails.