Backplates

Some articles on backplate, backplates:

Backplate And Wing - Configuration - Backplate
... The backplate is usually constructed from a single piece of stainless steel or anodised aluminium, bent along four lines to form a channel running vertically down the center ... Steel backplates are commonly used when the buoyancy of the diver’s other equipment (primarily cylinders and exposure protection) would require them to ... Aluminium backplates are commonly used when the diver would not require a weightbelt (such as when wearing heavy steel cylinders) or when the mass of the ...
Backplate And Wing - Differences From Other Styles of BCD
... The backplate and wing differs from the jacket style primarily in the way that the functions required of a BCD (attachment to diver, buoyancy control and attachment to cylinder(s ... The buoyancy of a backplate is often significantly negative, especially when the plate is made from stainless steel, and so can replace some of the weight that would otherwise be worn on a weightbelt ... are not found in the core system of a backplate and wing, but can be added as additional components if desired ...