Dutch towage and salvage group Multraship and GE Marine announced
that GE's 12-cylinder 7FDM diesel engines have been selected to power a new tugboat being built for Multraship. It will be the first newbuild to incorporate the Carrousel system licensed by Rotterdam-based Novatug, Multraship and GE jointly reported today at the International Tug & Salvage Convention
and Exhibition.The compact Carrousel tug will use two GE medium-speed diesel engines, each
rated at 3,070 shaft horsepower (shp) for total system propulsion of 6,140
shp. A shipyard is now being selected to build the 24-meter vessel, which is
expected to go into service in the harbors of southern Holland in early
"We selected GE Diesels for this application based on proven low life cycle costs, reliable operation, fuel efficiency and recent ABS certification," said Leendert Muller, managing director of Multraship Towage
& Salvage, Terneuzen, The Netherlands.
"We are delighted to be involved in this milestone project," said John
Manison, general manager of GE Marine, Erie, Pa. "We are confident that
Multraship will benefit from the operating experience garnered by the more than 1,500 GE Diesel engines now in service worldwide."
The new Carrousel design is characterized by a radically different concept:
By placing a ring around the tug's superstructure, with the towing wire
connected to either a hook or winch on the ring, the towing wire can be
rotated freely from the tug's hull. This leaves no need for rotation of the
tug's propulsion by means of complex thrusters.
The first Carrousel tug was a retrofitted vessel. In 1999, Multraship Towage & Salvage's Multratug 12 was converted into the world's first Carrousel tug.
After extensive tests to validate model results and to investigate the
practical use of the system in an actual application, the retrofitted tug
went into service in 2002 on the sea-canal in Ghent-Terneuzen. In fact,
Multraship Towage & Salvage was awarded the prestigious Dutch Maritime
Innovation Award in April 2003 for the implementation of the Carrousel
GE offers a full line of GE Diesel and EMD* compatible engines and products
for the marine, power and industrial markets. The GE Diesel family of medium
speed engines ranges between 1,600 to 4,500 shp. GE's 7FDM engine models in
8, 12 and 16 cylinders, range in
power from 1,600 shp/1,193 kilowatts (kW) to 4,500 shp/3,355 kW. The high
compression, Electronic Fuel Injected (EFI) engines recently received ABS
certification. These reliable engines deliver reduced fuel consumption,
improved reliability and decreased emissions, and are driven by GE's new
GE Diesels meet current MARPOL and EPA Marine Tier 1 emissions requirements,
with NOx below 8.6 grams per horsepower-hour (g/hp-hr). These engines will
meet EPA Marine Tier II compliance that goes into effect in 2007 (see Table
1 below for engine specifications).