1999 Eastern 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.

• MV Deacon only worked five years after being built before being stacked. MV Deacon cost over $22m to build and would cost $30m to duplicate today. MV Deacon is US Flag and was USCG certified, and ABS classed when it was in service.
• This 120’ x 40’ Aluminum SWATH crew boat was built in 1999 for Trico Marine to quickly shuttle as many as 250 passengers to offshore platforms.
• She was built by Eastern Shipbuilding Group and designed by Petrobras.
• The goal was to create an offshore crew transport vessel that would phase out costly helicopter rides and rough voyages on conventional, mono-hull crew boats.
• The SWATH design provided a smooth ride and met the requirements of an average speed of 25 knots.
• The M/V Deacon is capable of speeds over 30 knots.
• The ergonomic requirements were defined to limit the incidence of seasickness to less than 5% in 4 hours exposure in the 2- to 3- meter seas so common to the Campos Basin where the vessel would operate. They also required comfortable seating, ample legroom and an HVAC system with a relatively high rate of exchange. The final design presented a number of challenges, while incorporating many high-tech features, such as a gas turbine coupled to controlled pitch propellers via a 27:1 reduction gear and an active fin system.
• The vessel was built for $23 million. New construction cost to replace the vessel is estimated at over $30 million. While the M/V Deacon is currently powered with two Allison 501 KF turbines, she may be re-powered with conventional engines. A recently constructed model shows what the vessel’s outer decks would look like with conventional power.
• After five years of service in Brazil, the vessel was placed in freshwater storage for five years. During the five years of storage, the crew was on board and machinery was run regularly. The M/V Deacon was transferred to Seacraft Shipyard where she was dry-docked in June 2008 and the bottom of the vessel was repainted. Seacraft is in Amelia, Louisiana, USA.

Discover a vessel that redefines stability and power - the 1999 Eastern Ship Building Swath 120. Meticulously crafted with cutting-edge design, this SWATH (Small Waterplane Area Twin Hull) catamaran is equipped with twin Allison 501KF turbines, offering an unparalleled combination of efficiency, reliability, and sheer exhilaration on the water.

**Additional Information:**

- **Year:** 1999

- **Make:** Eastern Ship Building

- **Model:** Swath 120

- **Turbines:** Twin Allison 501KF

- **Length:** 120 feet

For those seeking a vessel that combines cutting-edge design, unmatched stability, and the power of Allison 501KF turbines, the 1999 Eastern Ship Building Swath 120 stands as an extraordinary option. Whether for private ownership, commercial use, or specialized expeditions, this SWATH catamaran is ready to redefine your maritime experience.