The metal axle of a block upon which the sheave revolves.

A bolt fitted with a ring through its eye, used for securing, running, rigging, etc.

Flat steel stock of various thicknesses used in the construction of a ship to form the sides and decks.

An arc of a circle in which certain types of navigational lights known as sector lights are visible.

The highest temperature at which well-defined liquid and vapor states exist.

The capacity for floating.

One that has the right-of-way and should maintain her course and speed during a crossing or overtaking situation, unless a collision appears imminent. (Was formerly called "the privileged vessel.")

A standard numeric code developed by the United Nations to classify commodities used in international trade, based on a hierarchy.

Windward side of a vessel.

A rope used for additional support or for additional securing, e.g., preventer stay.

Is another term for saturated vapor pressure.

An indemnity issued to the carrier by a bank; protects the carrier against any possible losses or damages arising from release of the merchandise to the receiving party. This instrument is usually issued when the bill of lading is lost or is not available ...

A navigable route on a waterway, usually marked by buoys. Channels are deep enough for ships or boats to navigate without running aground.

(1) A navigator shoots the sun by using a sextant to measure its altitude. (2) A sailing vessel shoots when she forges ahead to windward with her sails luffing.

Prepare for going to sea, extra lashing on all movable objects.

Systeme International. The international system of unit measurement.

A horn type of vent designed to let air into a cabin and keep water out.

Cabin; sleeping compartment.

Adjustable stays used to support and control tension on the mast when the wind is from abaft the beam; temporary backstays used to stabilize the mast and prevent undue flexing due to the pumping action of the sea.

A line running from near the top of the mast, used to hold the spinnaker pole in place.