Sailing close-hauled

A general term to designate apparatus designed to observe the details of weather during thunderstorms.

The maximum heat output (in Btu per hour) released by a burner with a stable flame and satisfactory combustion.

Korean Register of Shipping (classification society)

A receptacle which serves to store compressed air for heavy demands in excess of compressor capacity.

A measure of seasonal or annual efficiency of a central air conditioner or air conditioning heat pump. It takes into account the variations in temperature that can occur within a season and is the average number of Btu of cooling delivered for every watt- ...

A boat that is letting herself be subjected to prevailing conditions without the use of sails or other devices. Lying ahull is usually not preferred to other actions because a boat may tend to lie with her beam to the waves and the wind parallel to the wa ...

A river, canal or other body of water that boats can travel on.

An area of low atmospheric pressure which has a closed circulation that is cyclonic (counterclockwise in northern hemisphere and clockwise in southern hemisphere).

The ratio of light reflected by a surface to the light falling on it.

In reference to solid biomass fuels, such as wood, having zero moisture content.

International Harbour Masters' Association

One Person Bridge Operation.

Association of Unit Trusts and Investment Funds A trade association formed in 1959 to represent the interests of unit trusts and known then as.

Marine Coastguard Agency

Water-Tube Boiler Survey

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A structural, load-carrying building member with an open web system that supports floors and roofs utilizing wood or specific steels and is designed as a simple span member.

see Air-Source Heat Pump.

Electromagnetic radiation in the wavelength range of 4 to 400 nanometers.