When a boat has two separate fins, instead of a centerboard or keel, they are referred to as bilge boards.

In lore, the flag flown by a pirate ship - a white skull on a black background with crossed bones below the skull - although there is no evidence that such a flag was ever flown.

The horizontal movement of the water due to tide

A metal pin by which the plating and other parts of iron and steel vessels are joined. Rivets are known by their heads, such as: Flush, pan, snap, plug, tap, countersunk, mushroom, and swollen neck.

Nonglossy paint with a relatively high absorptance.

A method of controlling a wind turbine's speed by varying the orientation, or pitch, of the blades, and thereby altering its aerodynamics and efficiency.

The amount of money required to secure a specified cash flow at a future date at a specified return.

The total value of a deceased person's assets.

(EPP)A pension plan which is tailored for directors and senior executive.

Securities which pay a fixed rate of interest. Government bonds (gilts) are the best known example..

An audible or visual discharge at a pressure slightly lower than the set pressure on a valve. Warns the operator that the valve is about to open.

A person or company acquiring.

A scale of yellows, greens, and blues for recording the color of sea water, as seen against the white background of a Secchi disk.

A seaman's personal "painter" is his lifeline, and if it is severed, he dies.

Slang term for a small swab made of rope and used for drying decks.

The tensile or compressive loading on the crosshead assembly with compressive piston rod loading on the outward stroke and tensile piston rod loading on the inward stroke.

Also stability sail or riding sail. Any small sail set to help the boat maintain its direction without necessarily moving, as when at anchor or in heavy weather.

A type of combustion heating system in which combustion air is drawn directly from outside and the products of combustion are vented directly outside. These features are beneficial in tight, energy-efficient homes because they will not depressurize a home ...

The planting, cultivation, and harvesting of a single species of crop in a specified area.

Same as geostrophic wind level.