An angle piece fitted over the edge of boxes, crates, bundles and other packages to prevent the pressure from metal bands or other types from cutting into the package.

Above sea level

The art and science of designing vessels.

A short length of line, usually braided or marled, used to temporarily bind the anchor cable to the messenger when the anchor is weighed by hand around the capstan.

An instrument designed to detect the ultrasonic emissions and convert them to audible signal.

The oily condensate discharged by lubricated air compressors. The name is derived from the appearance of the condensate. Under normal conditions oily condensate should just be cloudy, like a small amount of milk in a bucket of water. When a lubricated com ...

A hand held pneumatic chipping tool which the blows are transmitted through a group of floating needles or metal rods.

A stopper used to prevent water from entering the hawse hole in heavy weather.

The after section of the propeller shaft.

A longitudinal stiffener for the side of a ship, made of angle bar, bulb angle channel or plates, etc. Depending upon their locations, stringers are known as bilge stringers, side stringers, hole stringers, etc.

A protective cover wrapped around the mast at the deck on a keel stepped boat to prevent water from entering the boat.

On a square-rigged ship, a tackle used for hoisting casks and provisions.

Ship's boat kept ready for immediate lowering while at sea. When used for life-saving, it was called an "accident boat" or lifeboat.

Unlit navigational aids for use during the day. They mark a bearing to a channel when they are lined up one above the other. Leading lights are lighted at night and serve the same purpose.

A device for mounting cylinders.

Isolated rocky peak rising from a sheet of inland ice.

A compressor designed to compress air or gas without contaminating the flow with lubricating oil. Piston rings and packing are usually made of TFE-based materials or carbon or other synthetic material that operate without lubrication.

A guy who gets Head (toilet) cleaning detail.

Breaking away of a mass of ice from a glacier or iceberg.

The cover of a scuttle-way or small hatchway which leads to to or from a store room, cabin of small craft, crew's quarters, the forecastle or fore peak.