A sea which is traveling in the opposite direction to that of the boat

A strong tropical counterclockwise revolving storm the southern hemisphere. In the northern hemisphere these storms revolve clockwise and are known as hurricanes.

Reciprocating type compressor used mainly in oil and gas field applications. The compressor cylinders operate at low compression ratios and experience small temperature rise.

A region of shallow water usually made of sand or mud, usually running parallel to the shore. Bars are caused by wave and current action, and may not be shown on a chart

The ability of a seaman to foretell weather by the appearance of the sky, change of wind direction, etc. was handed down in the form of proverbs. Some well known are:

A journey made at sea by a vessel, usually including both the outbound and homebound passages.

Strong offshore current extending to the shore.

The direct sailing line in which a racing mark or buoy can be fetched while sailing the desired course

The compass points of North, East, South and West. Intercardinal or half-cardinal points are Southeast, Southwest, Northwest and Northeast

Is the pressure existing at a given temperature in a closed vessel containing a liquid and the vapor from that liquid after equilibrium conditions have been reached. It is dependent only on temperature and must be determined experimentally.

A threaded, adjustable fitting, used for stays, lifelines and sometimes other rigging. It is used to to maintain correct tension on standing rigging. Can also be used to pull objects together.

Overhanging part of a vessel's stern. The area of the upper deck of a ship that is nearest the stern.

Also known as a steaming light. The masthead light is a white light that is visible for an arc extending across the forward 225

A compressor belonging to the group of dynamic compressors. Characterized by having its flow in the axial direction.

For gauging purposes a transverse section including all longitudinal members such as plating, longitudinals and girders at the deck, side, bottom, inner bottom and longitudinal buklheads.

Standard pressure and temperature. See standard air.

Oscillations of the sea caused by wind blowing along the surface and moving in the direction from which the wind blows.

A sliding type of bearing having either rotating or oscillatory motion and in conjunction with which a journal operates. In a full or sleeve type bearing, the bearing surface is 360 degrees in extent. In a partial bearing, the bearing surface is less than ...

Shifting the moving block of a tackle from one place of attachment to another place farther along to give more advantage.

To bring a sailing vessel head to the wind or as close to it as possible in high seas, maintaining a slight forward motion.