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Maritrans Secures Patent for Converting Single-Hull Tank Ships

Maritrans Inc. has obtained a patent on its proprietary process for rebuilding single-hull tank ships and converting them into double-hull vessels. With the most recent patent, Maritrans has now patented the double-hull conversion process for both barges and tank ships. The U.S. Oil Pollution Act of 1990, as well as the International Convention for the Prevention of Pollution from Ships (MARPOL), each require the retirement of single-hull tank vessels. In January of 2001, Maritrans announced that it had received the first of three patents for internal double-hull conversions of single-hull barges. These Maritrans patents involved pre-fabrication of large tank structures that are inserted into the existing hull, with a trunk deck extending above the pre-existing deck. The design allows double-hull conversion while preserving virtually all of the previous cargo capacity. Maritrans is currently completing its fifth barge rebuilding project using this patented process. This latest patent, for single-hull tank ships, addresses the unique design of these vessels. Maritrans utilized its computer-assisted modular design process, pioneered in the previous double-hull patents, to formulate an appropriate double-hull structure for tank ships. The patent differs from the previous barge patents in that it combines the addition of an inner bottom with external side modules. Maritrans also has other U.S


USCG Codifies Single Hull Phase-out Requirements

In a notice of proposed rulemaking (NPRM), the USCG proposes to clarify and codify a policy it issued in April 1999 regarding phase-out dates for single hull tank vessels. OPA 90 includes requirements for double hull tank vessels and phase-out schedules for all single hull tank vessels operating in U.S. waters. Tank vessel owners are required to remove single hull tank vessels from service on a specific date, depending on such factors as the vessel's gross tonnage, age and hull configuration


ExxonMobil Still Chartering Single Hulled Tankers

U.S. oil giant ExxonMobil continues to charter single-hull tankers for its oil, tanker brokers said on Thursday. ExxonMobil has been in the market for a five-year time-charter since late August, brokers said, and has recently been giving serious consideration to a single-hulled very large crude carrier (VLCC) that will be nearly 20 years old by the end of the charter in 2005. Negotiations, however, have recently reached a stalemate, brokers said.


Strategic Marine Launches Caballo Maya

Photo courtesy Strategic Marine

Strategic Marine has successfully launched the first of two 496 ft Dive Supports Vessels, Caballo Maya (Hull 156) in Vietnam. The vessel was launched on the 5th of April, 2010, with the second vessel (Hull 157) approximately 90% complete and eight weeks from completion. “We were originally awarded the contract for Hull 156 in late 2006, and were engaged to exclusively carry out the steel fabrication works on the vessel,” explained Managing Director Mark Schiller


Jotun to Offer Antifouling Coatings Guarantee

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2011-05-02 – PRESS RELEASE: Jotun’s Hull Performance Solutions offers shipowners and managers who purchase Jotun’s silyl methacrylate SeaQuantum X200 a money back guarantee if the antifouling coating fails to deliver less than 1.5 per cent speed loss or a maximum 4.5 per cent increase in fuel consumption over a 60 months dry-docking interval. The Jotun Hull Performance Solutions guarantee is calculated on a transparent measurement and analysis tool


Flexibility Key to MES’ New FPSO Hull Platform

Japanese shipbuilder Mitsui Engineering & Shipbuilding Co., Ltd. (MES) announced it has developed a next generation hull platform for floating production, storage and offloading system (FPSO) that aims to offer improved flexibility between projects.   Offshore oilfields vary in environmental conditions and oil properties relative to geographical location, requiring shipyards to frequently change hull design and construction scheme to satisfy varying requirements for each project


Flexible Membrane Covers and Seals Damages

The Gulf Responder is a 45-ft. aluminum catamaran designed to operate in oil and hazardous chemical spills. Currently under construction at Scully's Fabricating in Louisiana, the vessel's expected delivery date will be either late January or early February. The 15-ton vessel is powered by twin turbo diesel engines with water jet propulsion and equipped with two 1,000 lb. MagnaPatch devices. The MagnaPatch is a patented pollution abatement device


Jurong Shipyard Skids Hull in Rig Construction

Jurong Shipyard Pte Ltd (JSPL), a subsidiary of SembCorp Marine Ltd has skidded the massive 14,000 ton upper hull of a $285 million semi-submersible rig over the lower hull. It is reportedly the first of its kind involving the skidding of such a heavy structure. It was conceived, designed and constructed over a two-year period. On April 11, 2001, JSPL in collaboration with associated company PPL Shipyard Pte Ltd (PPL) entered into a fixed price agreement with GlobalSanteFe Corporation


Simon Beale Elected Chairman of Joint Hull Committee

Simon Beale, underwriter of the KJ Coles syndicate at Lloyd's, has been elected chairman of the Joint Hull Committee (JHC). The JHC is a joint initiative by the International Underwriting Association of London and Lloyd's Underwriters' Association. Its role is to support and develop the role of the London hull insurance market. The JHC acts as a focal point for hull insurance issues while providing advice and representation to members on technical, legal, promotional and educational issues


Cathelco ICCP for Concept Jack-Up

Photo courtesy Cathelco Ltd.

Cathelco is supplying an ICCP hull corrosion protection system for a new type of jack-up vessel which is being constructed for Master Marine of Norway who specialize in the transport and installation of heavy structures for the offshore energy industry. The vessel, known as Service Jack 2, will initially be used to install wind turbines in the Sheringham Shoal Offshore Wind Farm which is located in the Greater Wash approximately 9 miles north of the town of Sheringham in Norfolk


ClassNK Updates PrimeShip-HULL (HCSR) Software

ClassNK has released the latest version of its design support software PrimeShip-HULL (HCSR) Ver.4.0.0., developed in response to the IACS Common Structural Rules for Bulk Carriers and Oil Tankers (CSR BC & OT). The new version incorporates the latest rule amendments to CSR BC & OT and in


Cammell Laird Awards Coatings Contract for RRS Sir David Attenborough

Artists impression of the RRS Sir David Attenborough unloading supplies in Antarctica. Copyright Rolls Royce.

Subsea Industries’ Ecospeed hull protection system has been selected for RRS Sir David Attenborough, the polar research ship under construction at the Cammell Laird shipyard in Birkenhead, Liverpool, U.K.   The £150 million contract to build the vessel


U.S. Navy to Christen LCS Tulsa

Kathryn L. Taylor, former mayor of Tulsa, Okla., sponsor of the future littoral combat ship USS Tulsa (LCS 16), etches her initials into the ships keel plate with the help of Austal welder Brandon Myers  Photo USN

The Navy will christen its newest Independence-variant littoral combat ship, USS Tulsa (LCS 16), during a 10 a.m. CST ceremony Saturday, Feb. 11 in Mobile, Alabama.        Tulsa, designated LCS 16, honors the city of Tulsa, Oklahoma.


Foss’ New Arctic Class Tug Is Nearly Complete

Photo: Foss Maritime

Foss Maritime said its third of three new Arctic Class tugs being built at the Rainier, Ore. shipyard is nearing completion and expected to enter service later this year.     The tug Nicole Foss is ice class D0, meaning the hulls are designed specifically for polar waters and are


Acta Marine Orders Wind Farm Vessel

Image: Ulstein Group

Netherlands based ship owner Acta Marine B.V. has placed an order with Ulstein Verft AS for the construction of a DP2 construction support vessel (CSV) primarily aimed at the offshore wind market.   The vessel, which carries the new SX195 design from Ulstein Design & Solutions AS


World's First Barge-based FSRU Exits Dry Dock

Photo: Wison

The world’s first barge-based Floating Storage and Regasification Unit (FSRU) has undocked from dry-dock in Nantong, China, announced Wison Offshore & Marine, who provided EPC services for Exmar. Upon the undocking, topside installation has been completed, which paves the way for delivery


Marine News Boat of the Month: January 2017

Image: Gulfstream Shipbuilding

Gulfstream Shipbuilding’s Custom Aluminum Ferry: U.S. Department of Homeland Security awards Ferry Contract for vessel built specifically for Eastern Coastal Waters.   In December, Gulfstream Shipbuilding was awarded a contract through the United States Department of Homeland Security


No Cash: PDVSA Tankers Stuck Off Venezuela

 More than 4 million barrels of Venezuelan crude oil and fuels are stuck in tankers in the Caribbean because Venezuela’s state-run oil firm cannot afford to pay for cleaning dirty tankers and port inspections, Reuters reports, quoting internal company reports and Reuters tanker tracking


Horizon Signs Remaining Options for NYC Ferry Builds

Photo: Horizon Shipbuilding

Horizon Shipbuilding, Inc. said it has been awarded five additional citywide ferries by HNY Ferry Fleet, LLC. The award brings the total ferries Horizon is building to 13 and completes the initial 19 boat citywide ferry contract. Two of the five vessels will be delivered as part of the 2017 package


RoPax hull launched at Niron Staal - Damen

Damen Ropax 5212 Courtesy Damen

Marking the completion of the first new build contract between Niron Staal Amsterdam and Damen Shipyards Group, the hull of a RoPax 5212 passenger ferry hull has been launched from Niron Staal’s facilities in Amsterdam. Preparations for the launch started early on Tuesday morning when the


Gladding-Hearn Delivers to Michigan Pilots

Photo: Gladding-Hearn Shipbuilding

The Lake Pilots Association, District 2, in Port Huron, Mich., has accepted delivery of Huron Spirit, a new Chesapeake Class pilot boat from Gladding-Hearn Shipbuilding, Duclos Corporation.    With a length overall of 52.5’, a beam of 16.7’, and a draft of 4


Ferry Tales: Having a Ferry Good Time

At the most basic level, all new construction projects should offer an improved customer experience. While there are many challenges for designers and builders, complying with the latest ADA accessibility guidelines is a given. Likewise, customers have an elevated level of expectation for improved technology to augment their ride. WiFi, power ports, automated ticketing or counting systems, and onboard information displays are all fast becoming necessities, rather than amenities. (Courtesy: Vigor

Despite of some of the lowest fuel prices experienced in the last eight years, demand for ferry construction is at a seemingly all time high. The focus on building new ferries kicked off in early 2013 and the sustained interest is the continued result of an unleashing of pent up demand


MES Delivers Bulk Carrier Desert Harrier

Mitsui Engineering & Shipbuilding Co., Ltd. (MES) completed and delivered a 60,000 dwt type bulk carrier M.V.  Desert Harrier (MES Hull No. 1910) at its Chiba Works on February 1, 2017 to Genoa Shipping and Investment Limited, Marshall Islands.  


OSK-ShipTech: Advanced Tech for Retrofit Projects

Image: OSK-ShipTech

Danish naval architect OSK-ShipTech A/S is introducing 3D laser scanning as a tool to minimize risk and maximize precision in a market where owners are looking for the fastest and most accurate retrofit and conversion solutions.   Speed and accuracy is key to owners


Fleet Cleaner Completes Its First Job

Photo: Fleet Cleaner

Dutch company Fleet Cleaner said it has completed its first hull cleaning trial in December 2016 in the Dutch port of Den Helder, using a robot to clean the hull of HNLMS Karel Doorman, the largest vessel of the Royal Netherlands Navy.  






 
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