Pneumatic stabilized platform (Wikipedia)
- "...A Pneumatic stabilized platform (PSP) is a technology used to float a very large floating structure (VLFS).
PSP utilizes indirect displacement, in which a platform rests on trapped air that displaces the water. The primary buoyancy force is provided by air pressure acting on the underside of the deck. The PSP is a distinct type of pneumatic platform, one in which the platform is composed of a number of cylindrical shaped components packed together in a rectangular pattern to form a module...."