Description
Class B63B : SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
Subclass 1/08: Hydrodynamic or hydrostatic features of hulls or of hydrofoils (hulls peculiar to submarines B63B 3/13; keels B63B 3/38; determining hydrodynamic or hydrostatic features B63B 9/00; decreasing pitch, roll, or like unwanted vessel movements by using foils acting on ambient water B63B 39/06) deriving lift mainly from water displacement (B63B 1/16 takes precedence) with single hull Shape of aft part