... the application of such a bow rudder yielded a significant (up to 50%) reduction of the both the yaw and the roll motion in these conditions. Comparative studies of models with and without such a “bow rudder” in the towing tank showed no tendency to broaching of the boat with bow rudder at all any more...

... of Stevens Institute. marine transportation wedge knot reduction wedge hull patrol vessel transonic hull ref bulbed wedge freeboard upstream oil & gas hull cisd patrol vessel oceanic consulting corporation united states government fn 0 characteristic loading investigation...

... america government photograph boat spectrum transom drag underwater photograph wafer figure 17 baseline hull propeller reduction model drag tma spectrum figure 10 effect lcg ballast Chesapeake Power Boat Symposium 2012 15-16, June, St. John's College, Annapolis, Maryland Copyright ©...

... Marine vehicles intended for ultra-high-speed applications can beneficially use the air for drag reduction and lift augmentation. New types of air-assisted marine craft include air-lubricated boats, aerodynamically supported multi-hulls, and ram craft with jet-induced lift. This paper reviews...

... QUADRAPOD is an air-assist catamaran hull form developed to further advance the use of surface effect ship (SES) technology. The primary advantages presented by the QUADRAPOD technology include a significant reduction in propulsion power levels and fuel consumption to achieve a given design...