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Vigor to add huge drydock in Portland Vigor Industrial has reached an agreement with Daoda Marine Heavy Industry Company (DDHI) to purchase a new floating dry dock for $40 million. At 960 feet long, with an inside width of 186 feet and a lifting capacity of 80,000 long tons, it will be the largest floating dry dock in the United States. The new dry dock will be positioned at Swan Island facility in Portland, OR, will be 300 feet longer than the largest dry dock Vigor currently owns. It will be one and half times wider and will be able to lift more than triple the weight. “We decided now is the time to buy because demand to service large vessels is growing and large dry dock capacity in proximity to the U.S. West Coast has diminished,” says Vigor Industrial CEO Frank Foti. West Coast ship repair capacity took its biggest hit in 2001 when Portland’s giant 984 ft x 184 ft then Dry Dock 4 was sold. That dock is now the centerpiece of Grand Bahamas Shipyard. This new capacity will allow Vigor to service the incoming generation of the U.S. Navy’s Military Sealift Command (MSC) dry cargo/ammunition ships, which are replacing some smaller MSC ammunition, combat stores and fuel ships. The dry dock will be large enough to service commercial vessels including postPanamax cargo ships and cruise ships. The increased capacity will also help Vigor

The new 80,000-long ton capacity drydock will be positioned at Vigor’s Swan Island facility in Portland, OR

meet growing demand from the Arctic as oil and gas exploration and other ship operators take advantage of longer ice-free summers. DDHI will build the dry dock at its shipyard in Jiangsu Provence, China, for delivery by March 2014. It will be towed to Portland in three pieces for assembly, and its first job will likely be to prepare Vigor’s largest current Portland-based dry dock for use at Vigor’s Seattle facility. This would provide the Seattle shipyard with a new capacity to service Panamax-sized vessels. “The new dry dock will allow us to meet future demand, grow our business and put more people to work in the Pacific Northwest.”

COAST GUARD OkAYS FOREIGN-bUILT LNG TANkS ON PSVS having the independent LNG tanks for harvey Gulf International Marine’s dual fuel Platform Supply Vessels fabricated overseas won’t violate their Jones Act eligibility, according to the U.S. Coast Guard. harvey Gulf International Marine (hGIM), New Orleans, LA, sought the confirmation from the Coast Guard. hGIM is building five 302 ft dual fuel PSVs at TY Offshore, Gulfport, MS. Each will be fitted with independent Liquefied Natural Gas (LNG) fuel tanks, which are currently being fabricated in the U.S. however, to speed production, the tank vendor is considering fabricating at overseas facilities to be shipped to TY Offshore for assembly in the hull. The LNGPac system, which includes a 284m3 capacity insulated LNG tank, is being fabricated by Wärtsilä. Under the requirements of 46 C.F.R. 67.97, to be considered built in the U.S., a vessel must: (1) have all major components of its hull and superstructure fabricated in the U.S.; and (2) Be assembled entirely in the U. S. Based on the Coast Guard’s review, the independent tanks are structurally separate from the vessel’s hull and will not not contribute to the overall strength of the hull.

NASSCO to convert Orca Class RO/RO’s to LNG for TOTE Following on an announcement this past December that it would build at least two and as many as five 3,100 TEU containerships for Totem Ocean Trailer Express, General Dynamics NASSCO reports that it now has finalized a contract with the company to design the conversion of two existing Orca Class, diesel-electric trailerships to liquefied natural gas (LNG) propulsion. The contract price was not disclosed. As we reported last August, Totem Ocean Trailer Express, Inc. (TOTE), Princeton, NJ, received a permit providing a conditional waiver from the current Emissions Control Area (ECA) fuel sulfur content while it pursued conversion of the ships to LNG. “This project provides yet another sign that we are in the dawn of a new era of LNG

propulsion,” says NASSCO President Fred Harris. “NASSCO will be a leader in the design, construction and conversion of ships to take advantage of the economic and environmental benefits of LNG.” Another U.S. operator, Harvey Gulf International Marine (HGIM), New Orleans, LA, is building five 302 ft dual fuel Platform Supply Vessels, with options for five more, at TY Offshore in New Orleans, LA. Conversion of the ships to LNG propulsion will significantly reduce or nearly eliminate greenhouse gas emissions from ship emissions, helping the ships comply with stricter environmental regulations. The 839 ft Orca Class ships, Midnight Sun and North Star, which operate between

Tacoma, WA, and Anchorage, AK, were delivered by NASSCO in 2003. They are twin-screw diesel-electric with total installed power of 52.2 MW. The main engines are: four (each) MAN B&W 9L 58/64 and two (each) MAN B&W 9L 27/38 medium-speed diesels at 400 and 720 rev/ min, respectively. The diesel engines are designed to operate on both Heavy Fuel Oil, ISO 8217 Grade RMH 55 or Marine Diesel Oil, ISO 8217 Grade DMC. The electric propulsion plant is an Alstom 6.6 kV system; each motor is synchronous, variable speed, reversible, brushless, doublewound and rated at 19.75 mW at 125 rev/ min.


Feb 2013 Marine Log Magazine  

Feb 2013 Marine Log Magazine

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