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.

An announced warning of an approach of a storm.

A point through which all buoyant forces on an immersed hull are assumed to act.

(1) The portion of an anchor that digs securely into the bottom, holding the boat in place. (2) The two triangular parts which make up a whale's tail.

A rail fastened along the inside of the bulwarks of a vessel and pierced to hold belaying pins

A recess into the keel or a framework fixed to the keelson in which the mast is placed

The westerly distance in an arc from Aries, measured as an angle at the pole or as the intercepted arc of the equinoctial between the hour angle of Aries and the hour angle of the body.

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 ...

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.

see Devil

(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.

A schematic flow sheet showing all controls involved with the system.

The interaction between the stages of a centrifugal compressor. When a multi-stage compressor is designed, each stage can operate at only one point its characteristic curve. The point is determine by the design conditions of temperature, flow and pressur ...

Abbreviation for "Standard Transportation Commodity Code."

A storage tank where sewage is stored until it can be removed to a treatment facility.

Specialty compressed air treatment meeting OSHA Grade D breathing air requirements.

National Electrical Manufacturers Association.

The total pressure minus the static pressure in an air or gas stream.

A standard numerical code used by the U.S. Government to classify products and services.

On larger sailing vessels, the space between the foremast and mainmast where spare spars were stored.