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Whitewater buoyancy aids are designed to provide enough buoyancy in fast whitewater rivers, should the paddler capsize and leave the kayak. They are often more bulky than Slalom/Polo vests, but are usually cut short at the front to allow the paddler to lean further forward despite the thicker foam and allow good trunk rotation for quick turns.
Personal flotation devices being worn on a navy transport . A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suit that is worn by a user to prevent the wearer from drowning in a body of water.
Buoyancy also applies to fluid mixtures, and is the most common driving force of convection currents. In these cases, the mathematical modelling is altered to apply to continua, but the principles remain the same. Examples of buoyancy driven flows include the spontaneous separation of air and water or oil and water.
Immersion suits with buoyancy aids are provided with buddy lines to allow multiple survivors to connect to one another in the water, to keep survivors together. Some suits are manufactured with built-in hoisting lanyards, to allow easier retrieval from vessels with a higher freeboard that have hoisting capabilities.
A lifebuoy or life ring, among many other names (see § Other names), is a life-saving buoy designed to be thrown to a person in water to provide buoyancy and prevent drowning. [1] Some modern lifebuoys are fitted with one or more seawater-activated lights to aid rescue at night.
It can be used to aid in floating or stretching exercises. A pull buoy or "leg float" is used to focus exercise on the arms. Pool dumbbells are used for strength training where muscles push down against buoyancy. This is the opposite of conventional dumbbells, which are used to force muscles to pull up, against gravity.
The buoyancy compensator is used by ambient pressure divers using underwater breathing apparatus to adjust buoyancy underwater or at the surface within the range of slightly negative to slightly positive, to allow neutral buoyancy to be maintained throughout the depth range of the planned dive, and to compensate for changes in weight due to breathing gas consumption during the dive.
A low-pressure feed from the regulator first-stage to an inflation/deflation valve unit an oral inflation valve and a dump valve lets the volume of the ABLJ be controlled as a buoyancy aid. In 1971 the stabilizer jacket was introduced by ScubaPro. This class of buoyancy aid is known as a buoyancy control device or buoyancy compensator. [70] [71]