1999 Concept swath

built at the eastern shipbuilding group in panama city, florida.the 2 main engines are allison 501kf turbines (10,600hp, 30 knots)...bow thruster...ride control, mdi-active fin, stabilizers inmarsat-c mobile earth station-mes.a small waterplane area twin hull, better known by the acronym swath, is a twin-hull ship design that minimizes hull cross section area at the sea's surface. minimizing the ship's volume near the surface area of the sea, where wave energy is located, maximizes a vessel's stability (lowers sea sickness), even in high seas and at high speeds. the bulk of the displacement necessary to keep the ship afloat is located beneath the waves, where it is less affected by wave action. wave excitation drops exponentially as depth increases, so wave action normally does not affect a submerged submarine at all. placing the majority of a ship's displacement under the waves is similar in concept to creating a ship that rides atop twin submarines.