Variable buoyancy pressure vessel
= Variable buoyancy pressure vessel
{wiki=Variable_buoyancy_pressure_vessel}
A variable buoyancy pressure vessel is a type of underwater vehicle or system specifically designed to control its buoyancy and, consequently, its depth in a fluid, typically water. The key feature of such a vessel is its ability to adjust its buoyancy dynamically, allowing it to ascend or descend in the water column without the need for propulsion.