Place where a ship should report when passing i.e. when approaching a port.

Little or no wind and flat seas

A wind or force less than one knot (knot 1 nautical mile per hour).

Breaking away of a mass of ice from a glacier or iceberg.

A mechanical cleat used to hold a line automatically. It uses two spring loaded cams that come together to clamp their teeth on the line, which is place between them.

The curvature of an object such as a sail, keel or deck. Usually used when referring to an objects aerodynamic or hydrodynamic properties. The weather decks of ships are rounded up or arched in an athwartship direction for the purpose of draining any wate ...

Hollow vessel of iron, steel or wood, that is filled with water and sunk under a vessel. When water is pumped out, the buoyancy of the camel lifts the ship. Very valuable aid to salvage operations.

A wooden float placed between a vessel and a dock acting as a fender.

A cylindrical navigation buoy painted green and having an odd number used in the United States as a navigational aid. At night they may have a green light.

The velocity of the gas in the passages between the filter units in the filter house of a gas filter.

A manmade waterway used to connect bodies of water that do not connect naturally. Canals use locks to raise and lower boats when connecting bodies of water that have different water levels.

A pointed stern, such as those on a canoe.

(1) A term signifying an inclination of an object from a perpendicular; to turn anything so that it does not stand perpendicularly or square to an object. (2) Those timbers in a ship near the bow or stern which are sharply angled from the keel. (3) The op ...

Angled frames in the extreme forward or aft ends of a ship which form the sharp ends of the vessel's hull.

Type of mobile crane found on a truck.

Tightly woven cloth used for sails, awnings, covers, dodgers and biminis; slang for sails.

Length of rope whose ends are joined together so that it forms a loop.

A piece of trim, usually wood, used to cover and often decorate a portion of the boat, i.e., caprail.

The pressure screw cover and/or lever housing on a valve. May be screwed, bolted. packed, or plain lever.

A restrictive tube used in a refrigeration system which restricts the flow of freon and allows pressure to build on one side and suction on the other. It is located between the condenser and the evaporator.