A smooth hard wood grown in the West Indies which had many maritime uses, such as deadeyes and the sheaves of blocks. Its hardness stood up well to wear, and its smoothness allowed lines to render through easily.

Wooden bar with an iron shod, wedge, Shaped end, used in prying the anchor or working the anchor or working the anchor chain. Also used to engage or disengage the wild-cat.

Is the ratio of the theoretical work calculated on an isothermal basis to the actual work transferred to the gas during compression.

To install the sails on the boom or the forestay.

A sturdy railing or elevated guard rail around the deck at the stern. also known as Pushpit

The power required to compress a gas isothermally through a specified range of pressures.

A mechanical, electrical, or manually operated pump used to remove water from the bilge.

Lifts temporary quarantine of a vessel; granted pratique by Health Officer.

Traditionally a ship's bell is made of brass and has her name engraved on it. It is used for striking the bells which mark the passage of time (see Bells) and is also used as a fog signal as an audible warning of a ship's position.

An anchor or weight, permanently attached to the sea floor, with a buoy going to the surface, used to hold the boat in a certain area.

A vessel which, according to the applicable Navigation Rule, has right-of-way. Also known as the "stand on" vessel.

A large square of heavy canvas fitted with lines to allow it to be drawn under the hull of a ship where it is damaged. The pressure of the seawater holds it tight against the ship and greatly reduces the inflow of water.

A through hull valve, a shut off on a plumbing or drain pipe between the vessel and the sea

One who is adept at splicing, knotting, and working with line and canvas.

A positive displacement air compressor which has no oil injected into the compression chamber for lubrication, cooling or sealing

A structure which extends outboard beyond the edge of the hull for some special purpose. Some Polynesian canoes use outriggers to support an "ama" or small secondary hull, while fishing boats may use outriggers to suspend lines or nets over the water. ...

A command to stop or cease immediately what one is doing.

The extension of an air actuator beyond its design height.

A small low rail around the deck of a boat. The toe rail may have holes in it to attach lines or blocks and to allow drainage. A larger wall is known as a gunwale.