A hard-chined dinghy with flared sides, considered a useful weight-carrying work boat.

SOnar Navigation and Ranging - A device which emits pulses of high frequency sound which are reflected by any solid object they encounter. The time from the emission of the pulse and the arrival of its returning echo is measured, giving a range to the obj ...

Is the total gas pressure (static plus velocity) at the discharge port of the compressor. Velocity pressure is considered only with dynamic compressors.

A pointed spar driven into the bottom and projecting above the water; when driven at the corners of a dock, they are termed fender piles.

On a square-rigged ship, a light weather sail set next above the topgallant-sail in fair weather.

Said of a vessel that is firm, strong, and unlikely to develop leaks.

A term applied to the gas found on the high pressure side of the refrigeration system.

Also rubbing strake or rub strake. An applied or thickened member at the rail, running the length of the boat; serves to protect the hull when alongside a pier or another boat.

Part of the standing rigging that helps to support the mast laterally by running from the top of the mast to the side of the boat. Sailboats usually have one or more shrouds on each side of the mast. Some people call them side stays

The officer in charge of the watch.

Shipper's communication(s) to its agent and/or directly to the international water-carrier. Instructions may be varied, e.g., specific details/clauses to be printed on the B/L, directions for cargo pickup and delivery.

(1) Clear, not tangled. (2) sailing free: a vessel is sailing free when her sheets are eased. (3) running free: to sail with the wind from astern.

Are of two kinds: First, those built in permanently and part of the ship's structure, used for the reception of water ballast, fuel, oil, or liquid cargo; second, those constructed specially and removable if necessary. These vary greatly in size and shape ...

The weight shown in a waybill and freight bill, i.e, the invoiced weight.

Damage Free Car. Boxcars equipped with special bracing material.

(1) A knot used to secure a line to another object such as a ring or cylindrical object or to another line; (2) Common term for an enlistment.

A method of signaling and communicating using two flags held in position by the signaler, the positions of the flags denoting the meaning.

A tall buoy used as a navigational aid.

A belt and line or wire used to help a crew hike out beyond the edge of a boat to counteract the boat's heel. Usually used on small vessels for racing.

Place where loose or other non-containerized cargo is ungrouped for delivery.