On square-rigged ships, an additional sail set in good weather outside the square sails when the wind was abaft the beam.
A fitting around the propeller shaft to keep the bearing lubricated and to keep water out of the boat.
The packing arrangement for maintaining fluid tight an opening in a buklhead or cylinder through which a rotating shaft or a piston operates.
An extent of corrosion such that assessement or corrosion pattern indicates a wastage in excess of 75% of the allowable margins, but within the acceptable limits.
An electrical installation containing power conversion (and sometimes generation) equipment, such as transformers, compensators, and circuit breakers.
Formation of isolated particles of corrosion products beneath a metal surface. This results from the prcferential reactions of certain alloy constituents to inward diffusion of oxygen, nitrogen, or sulfur.
Originally, to suck rum from a coconut, the end of the nut resembling a monkey's face. Later, illicitly to suck spirit from a cask, usually through a straw. Also called Bleed the Monkey.
A tanker of the maximum size capable of transit of the Suez Canal (approx. 150,000-200,000 DWT)
The reaction of a metal or alloy with a sulfur-containing species to produce a sulfur compound that forms on or beneath the surface on the metal or alloy.
Brittle failure by cracking under the combined action of tensile stress and corrosion in the presence of water and hydrogen sulfide. See also environmental cracking.