Feature 7 | Tugs
Crowley selects Bollinger for
next-generation tug build
Crowley has announced a contract with Bollinger Shipyards for the
construction of two new design ocean-going tugs, with options for additional
vessels. These vessels represent the beginning of a newbuild programme at
Crowley to enhance ocean towing, salvage and offshore support capabilities.
T
hese 10,880hp tugs are to be
designated the ‘Ocean’ class, with
the first two vessels confirmed
as being named Ocean Wave and Ocean
Wind. Crowley’s subsidiary Jensen
Maritime Consultants assisted Crowley
vice-president of vessel management, Ed
Schlueter, and a cross-functional team in
the design of the new class.
Ocean Wave, Ocean Wind and the
possible additions will be constructed
at Bollinger Marine Fabricators LLC
in Amelia, Louisiana, with deliveries
scheduled for the third quarter of 2011
and the first quarter of 2012 respectively.
These next-generation tugs will be
44.5m loa; 13.4m beam and have a draught
of 6.4m. They are designed to have a
minimum bollard pull of 150tonnes, and
range for the vessels will be approximately
graphic of an Ocean class tug design (Credit: Crowley Maritime Corporation).
12,600nm at 15kts free running speed.
The vessels are to be outfitted for fuel or fluids. All tanks containing liquids the needs of our customers who are
long-range, high-capacity, ocean towing. are inboard of the side shell. looking for best-in-class, modern and
They have been designed with personnel The tugs will meet all Safety of Life environmentally friendly equipment.
safety as a priority. The waterfall style at Sea (SOLAS) and ABS criteria, and Crowley has always been an industry
winch, shark jaws and retractable pins include ABS Fi-Fi 1 fire-fighting standards. leader in tug design, technology and
can all be controlled from the pilothouse, Additionally, the Ocean class vessels will performance, and these new vessels are a
keeping the deck clear of personnel and have the capability to support salvage and reflection of our continued commitment
creating a safer working environment. rescue towing opportunities, as well as to that. Moreover, they will provide our
The tugs will be outfitted with twin-screw, the US Navy’s Supervisor of Salvage and crews with ergonomic accommodations
controllable-pitch propellers in nozzles Diving (SUPSALV) contract. and comforts needed to minimise fatigue
and high-lift rudders for a combination The new tugs will be well suited to work and injuries.”
of performance and fuel economy. The with Crowley’s new 455 series heavy-lift Chris Bollinger, executive vice-president
Caterpillar-supplied main engines and deck barges, which measure 121.92m by of new construction at Bollinger, added:
generators are all EPA Tier II compliant, 32m and offer increased stability for loads “Bollinger is proud to be Crowley’s builder
with the ability to be upgraded for future up to 4200lbs/ft². Additionally, the tugs of choice for this programme. We provide
environmental standards, for cleaner will be able to handle rig moves, platform the marine transportation industry with
emissions and a lower environmental and floating production storage and the best built vessels, meeting the demands
impact. During construction the vessel offloading (FPSO) vessel tows, emergency of our customers for workmanship;
will be documented and receive a response and fire-fighting. design, and on-time, on-budget delivery.
Green Passport certification. Further Tom Crowley Jr., chairman, president This modern design to be constructed by
environmental protection is provided by and chief executive officer at Crowley, Bollinger’s talented workforce will help
the tugs’ double-hulls, which are designed said: “We are continuing to make Crowley maintain its leadership position
to prevent any overboard discharges of the investments necessary to address in the industry.” SBI
58 Ship & Boat International March/April 2010
SBI_MarApr10_p58.indd 58 26/02/2010 12:28:23
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