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2. Float (nautical) - Wikipedia

   en.wikipedia.org/wiki/Float_(nautical)

   Floats (also called pontoons) are airtight hollow structures, similar to pressure vessels, designed to provide buoyancy in water. Their principal applications are in watercraft hulls , aircraft floats , floating piers , pontoon rhinos , pontoon bridges , and marine engineering applications such as salvage .

3. Personal flotation device - Wikipedia

   en.wikipedia.org/wiki/Personal_flotation_device

   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.

4. Lifebuoy - Wikipedia

   en.wikipedia.org/wiki/Lifebuoy

   Lifebuoy with emergency light on a cruise ship A lifebuoy floating on water. 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 ...

5. Buoyancy aid - Wikipedia

   en.wikipedia.org/wiki/Buoyancy_aid

   Buoyancy aids are a specialist form of personal flotation device (PFD) used most commonly by kayakers, canoeists, people practicing rafting, and dinghy sailors. They are designed as a flotation aid, rather than merely a life-saving device and have several key differences to other PFD's and lifejackets. Some buoyancy aids may not provide the ...

6. Buoy - Wikipedia

   en.wikipedia.org/wiki/Buoy

   Marker buoys, used in naval warfare (particularly anti-submarine warfare) emit light and/or smoke using pyrotechnic devices to create the flare and smoke. Commonly 3 inches (76 mm) in diameter and about 20 inches (500 mm) long, they are activated by contact with seawater and float on the surface.

7. Rescue buoy - Wikipedia

   en.wikipedia.org/wiki/Rescue_buoy

   The three major components of a rescue flotation device (RFD) are the lanyard, float, and harness. The lanyard and harness can trip up the lifeguard during the entry run, so care must be taken upon handling the RFD. The lifeguard must carry the rescue buoy until the beach visitors are not at risk of getting hurt. [1]