A nautical astronomical observation of the sun, moon, or a star, by which means a vessel's position can be determined. The sight was taken with a sextant at a specific time, determined by a chronometer.

To cast off all but one remaining line.

Is the temperature at which oil begins to flow under prescribed conditions.

Running directly before wind and sea.

The piston only compresses air with its stroke in one direction.

The logic of binary systems, such as control systems in which all operations may be reduced to on-off, open-closed, or similar dichotomous basis.

Synonymous for all practical purposes with "Intermodal."

A nautical guy, often a negative connotation.

The headway a vessel makes when luffed in the wind; the distance a sailing vessel will shoot up to windward when brought head to head in the act of tacking.

BTU. The amount of heat required to raise the temperature of one pound of water one degree Fahrenheit under set conditions of temperature and pressure.

The elements and compounds that result from the combustion of a fuel.

A contract between an insurer and the insured. The insurer agrees to pay money to the insured upon.

A development of the carrack, with the high forecastle eliminated.

To come up more into the wind

is one in which a portion of the original system energy is dissipated and cannot be returned to the system through its own operation. The system and/or surroundings cannot be returned to their original state.

A compartment forward where the chain cable is stowed.

An asset pledged as a guarantee to a lender until a loan is repaid. If the borrower defaults,.

Also known as (U.S.) Federal Bill of Lading Act of 1916. U.S. federal law enacting conditions by which a B/L may be issued. Penalties for issuing B/L's containing false data include monetary fines and/or imprisonment.

The water level used to record data on a chart. Usually the average low tide water level. It is the level below which depths on a chart are measured, and above which keights of a tide are expressed.

When the distance between the wave crests is less than normal.