A set of four twistable bayonet type shear keys used as part of a spreader to pick up a container or as part of a chassis to secure the containers.

The portion of a valve used to guide the disc.

Slang expression to indicate that a ship was not fitted with any mechanical aids, and that all the work of the ship had to be done with the strong arms of the crew.

The largest circle which can be inscribed on a sphere by a plane that cuts through the center of the sphere. On the earth, the equator is a great circle, as are all the meridians of longitude which pass through both poles. The shortest distance between tw ...

To change the course of a sailing vessel.

Alert (pep it up!).

A rate published on traffic moving from an interior point to a port for transshipment to a foreign country.

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

The bow and forward part of the vessel above the waterline.

The region around the equator between the Tropic of Cancer and the Tropic of Capricorn. The tropics are known for their warm weather.

Vibration isolation mount. Provides reductions in vibration transmission.

Light, warm wind on surface of sea.

The difference between the maximum extended height and the compressed height of an air actuator.

The U.S. federal body charged with enforcing acts of the U.S. Congress that affect common carriers in interstate commerce. STB replaced the Interstate Commerce Commission (ICC) in 1997.

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 ...

Is the lowest temperature to which oil must be heated under standardized test conditions to drive off sufficient inflammable vapour to flash when brought into contact with a flame. Flash points of petroleum based lubricants increase with increasing pressu ...

Said of a distant ship when her hull is below horizon and her masts and upper works are visible.

Small lines used to tie the sails when they are flaked or furled.

The stationary seating surface, the inlet of a valve.

There is no such thing on a boat! See Fender.