When the distance between the wave crests is less than normal.

The last part of a rope or last link in an anchor chain.

The magnetic compass used by the navigator as a standard.

An apparatus consisting of an outside shell and a sheave through which a rope may be passed (pulley).

An official signature or seal affixed to certain documents by the consul of the country of destination.

Is a positive displacement reciprocating compressor using a flexible membrane or diaphragm in place of a piston.

A valve which enables pressure to be reduced, or kept constant at a desired level.

In sailboat racing, the mark or buoy that signifies one side of the starting line, opposite of the race committee boat.

Statement on the condition of the vessel. The sufficiency of a vessel in materials, construction, equipment, crew and outfit for the trade in which it is employed. Any sort of disrepair to the vessel by which the cargo may suffer, overloading, untrained o ...

Arrangements with a carrier for the acceptance and carriage of freight; i.e., a space reservation.

A structure of heavy timbers placed between ground ways and cradle to support the ship during launching.

The highest unlicensed rating in the deck department who has immediate charge of all deck hands and who in turn comes under the direct orders of the master or chief mate or mate.

Light-weight foresail similar to a spinnaker but set without a pole.

To move ahead swiftly. To move ahead of another vessel quickly when underway.

Said of a vessel's anchor, or cable when the amount of cable out is not more than one-and-a-half times the depth of water.

The opening between the jib and the mainsail. Wind passing through this opening increases the pressure difference across the sides of the mainsail, helping to move the boat forward.

A free port in a country divorced from Customs authority but under government control. Merchandise, except that which is prohibited, may be stored in the zone without being subject to import duty regulations.

Canvas or wood seat attached a halyard to raise and lower someone to work on the mast

To temporarily stop all movement of a line through a block by placing the hauling part across the sheave of the block. This jams the sheave and holds it tight, and a pull on the hauling part will release it.

A raised portion of the hull forward of the cockpit intended to prevent water entering.