A tariff imposed to discourage sale of foreign goods, subsidized to sell at low prices detrimental to local manufacturers.

Electro-mechanical steering device; an instrument designed to control automatically a vessel's steering gear so that she follows a pre-determined track through the water.

The difference in depth between high and low tide.

ACRONYM - Approach temperature. Usually the difference between cooling water temperature in to compressed air temperature out of an inter-cooler or after-cooler. Sometimes used to define oil cooler efficiency (cooling water temperature in to oil temperatu ...

Under ICC and common law, the requirement that a rate not be higher than is necessary to reimburse the carrier for the actual cost of transporting the traffic and allow a fair profit.

The horsepower required to compress adiabatically the air or gas delivered by the compressor through the specified range of pressures.

A device invented by Captain Jacques Cousteau in 1943 to enable a diver to operate underwater independent from an air supply from the surface.

The distance from the surface of the water to the main deck or gunwale.

A measurement applied to filters or filter media to indicate the particle size at which suspended solids above that size will be removed.

An attachment point for another object.

Container freight station or a designated area where empty containers can be picked up or dropped off.

A short period at the turn of the tide. The time between flood and ebb tides when there is no current flow.

A type of journal bearing in centrifugal air compressors.

The post that the rudder is attached to. The wheel or tiller is connected to the rudder post.

A stated amount over a fixed rate to one point to make a rate to another point.

Originally meant "to stow cargo". Now, means "to search a ship carefully and thoroughly".

Similar to a Barber hauler, a twing adjusts the angle of sheeting.

Illegal passenger who hides himself on board a ship in order to gain free passage or to escape from a country.

A formula of the specific factors or elements that control the making of a rate. A rate can be based on any number of factors (i.e., weight, measure, equipment type, package, box, etc.).

In wooden ship construction, these were cylindrical pins of oak which were used to secure the planks to her timbers. Pronounced "trennels".