Abstract

A naval unit configured to selectively assume both a surface condition and a submerged condition comprises a spindle-shaped main body (11) which has a bottom (15) that develops between a first zone (11a), comprised between a rear stern end (13) and the center line (I), and a second zone (11b), comprised between the center line (I) and a front bow end (12). At least one portion of the bottom (15) provided in the first zone (11a) is provided with a first rounded concave cross section and having a profile defined by a continuous curve, and at least another portion of the bottom (15) provided in the second zone (11b) is configured planing, having a second cross section with a profile defined by two segments (215) converging toward a common vertex (W).

IPC Classes  ?

• B63B 1/04 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
• B63B 1/06 - Shape of fore part
• B63B 1/08 - Shape of aft part
• B63B 1/16 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
• B63B 3/13 - Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls
• B63B 35/73 - Other vessels or like floating structures for pleasure or sport
• B63B 1/18 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
• B63G 8/18 - Control of attitude or depth by hydroplanes