A light showing an unbroken light over an arc of the horizon of 360 degrees. An anchor or riding light is an all-round light.

A component on a compressed air line that provides wide are coverage with a thin sheet of air. Also amplifies compressed air flow, reduces noise. Used in blowing, cooling. Also known as air knife.

A spring line from the stern of a boat to mid ships to stop forward movement

A suspension of fine solid or liquid particles in a gas.

In navigation, the angle between the point at which the sun rises and sets and the true east and west points of the horizon.

A region of shallow water usually made of sand or mud, usually running parallel to the shore. Bars are caused by wave and current action, and may not be shown on a chart

A journey made at sea by a vessel, usually including both the outbound and homebound passages.

A member of the ship's crew.

The ability of a seaman to foretell weather by the appearance of the sky, change of wind direction, etc. was handed down in the form of proverbs. Some well known are:

The original name for the left side of the vessel when facing forward. The name was changed to Port to avoid any confusion with starboard, the right side of the vessel when facing forward.

Is the pressure existing at a given temperature in a closed vessel containing a liquid and the vapor from that liquid after equilibrium conditions have been reached. It is dependent only on temperature and must be determined experimentally.

Oscillations of the sea caused by wind blowing along the surface and moving in the direction from which the wind blows.

Shifting the moving block of a tackle from one place of attachment to another place farther along to give more advantage.

An electrical current that periodically reverses its direction. Standard in US and Canada is 60 cycles per second. Europe and other countries is 50 cycles per second.

The compass points of North, East, South and West. Intercardinal or half-cardinal points are Southeast, Southwest, Northwest and Northeast

For gauging purposes a transverse section including all longitudinal members such as plating, longitudinals and girders at the deck, side, bottom, inner bottom and longitudinal buklheads.

To tie something with a line; to secure

International Labor Organization; Based in Geneva, it is one of the oldest components of the UN system of specialized agencies and has been involved over the years in appraising and seeking to improve and regulate conditions for seafarers. In its unusual ...

Bareboat (Method of chartering of the ship leaving the charterer with almost all the responsibilities of the owner.)

The person who is in charge of a vessel and legally responsible for it and its occupants.