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A buoyancy compensator (BC), also called a buoyancy control device (BCD), stabilizer, stabilisor, stab jacket, wing or adjustable buoyancy life jacket (ABLJ), depending on design, is a type of diving equipment which is worn by divers to establish neutral buoyancy underwater and positive buoyancy at the surface, when needed.
The government of Spain issued a royal decree taking effect on 1 July 2020 (Real Decreto 550/2020 de 2 de junio: Condiciones de Seguridad de las actividades de buceo), regulating recreational diving activities [16] [17] [18] Restrictions include: a diver must have the appropriate and necessary training for the type of diving intended,
An extra low-pressure feed from the regulator first-stage lets the lifejacket be controlled as a buoyancy aid. This invention in 1971 of the "direct system," [citation needed] by ScubaPro, resulted in what was called a stabilizer jacket or stab jacket, and is now increasingly known as a buoyancy compensator (device), or simply "BCD". [citation ...
Scuba/BCD harness adjusted and secured, buckles accessible for quick release as applicable. Straps adjusted and lying flat. Weight belt secured, buckle accessible. Belt free to drop clear if ditched in an emergency. Integrated weight system pockets secure, accessible and free to ditch in an emergency.
This is a glossary of technical terms, jargon, diver slang and acronyms used in underwater diving.The definitions listed are in the context of underwater diving.
Weight belts are the most common weighting system currently in use for recreational diving. [17] Weight belts are often made of tough nylon webbing, but other materials such as rubber can be used. Weight belts for scuba and breathhold diving are generally fitted with a quick release buckle to allow the dumping of weight rapidly in an emergency. [7]
Used to convert cylinder pressure to free gas volume. [9] 2. A line that is a base for measurement or for construction; see datum (calculations or comparisons) 3. A data set which is a point of reference (engineering or science) for later data. basket. See: diving stage. BAT wing Buoyancy and trim wing.
A variable-buoyancy pressure vessel system is a type of rigid buoyancy control device for diving systems that retains a constant volume and varies its density by changing the weight (mass) of the contents, either by moving the ambient fluid into and out of a rigid pressure vessel, or by moving a stored liquid between internal and external variable-volume containers.