An automatic pressure relieving device actuated by the static pressure upstream of the device, which opens in proportion to the increase in pressure over the opening pressure.

[meaning]

Nickname for a British naval seaman.

[meaning]

Asian Shipowners Forum.

A situation where an investment organisation, such as an investment trust, deposits sterling with a.

A hinged mast step located on deck. Since it is hinged, the mast may be raised and lowered easily.

An arch to mount the radar, usually at the stern of the boat.

The portion of the deck between the forecastle and quarterdeck of a sailing vessel.

A four sided sail used instead of a triangular main sail. Used on gaff rigged boats.

1.Unattended Machinery Space,2.Universal Measurement System.

Abbreviation for precipitation effectiveness index.

States that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the constituent gases. The partial pressure is the pressure each gas would exert if it alone occupied the volume of the mixture.

A metal tag attached to a machine or appliance that contains information such as brand name, serial number, voltage, power ratings under specified conditions, and other manufacturer supplied data.

Segregated Ballast Tanks

Most common material is phenolic resin-impregnated laminated fabrics, such as asbestos or cotton cloth. For oil free service, bronze and carbon/graphite vanes are used.

[meaning]

An area within the interior space of a building, such as an individual room(s), to be cooled, heated, or ventilated. A zone has its own thermostat to control the flow of conditioned air into the space.

The distance traveled after correction for current, leeway and other errors that may not have been included in the original distance measurement.

A control line, usually a multi-purchase tackle, secured to the boom to prevent it from lifting. Can also apply to other spars, such as gaffs.