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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.


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


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

HPS.bmp

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


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


South Korea to Ban Single-Hulled Tankers after Spill

Reuters reported that South Korea will ban single-hulled tankers from traveling in its waters by 2011, earlier than the international regulation that calls for a ban from 2015, Seoul's maritime ministry said. A single-hulled tanker was involved in South Korea's worst oil spill last month, leaking around 10,500 tons of crude oil after a sea-bound crane mounted on a barge punched holes in the tanker's hull. As of January


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


Miko Magnetic Patches Pioneer New Repair Technique

MIKO - HEAT RESISTANCE OF PATCHES

  BW Offshore has successfully used Miko magnetic patches in a pioneering new repair technique that creates significant time and cost savings. When some cracks appeared in hull plating in the engine room of the FPSO Abo operating off the Nigerian coast


New Research Vessel for University of New Hampshire

Image: AAM

All American Marine, Inc. (AAM) has entered into a contract with the University of New Hampshire (UNH) for the design and construction of a new aluminum catamaran research vessel. AAM will build the 48’ x 17’ catamaran custom devised by Teknicraft Design, Ltd. of Auckland, New Zealand


Eastern Launches Second MPSV for Hornbeck

HOS Woodland (Photo: Eastern Shipbuilding Group)

Eastern Shipbuilding Group, Inc. has launched the second of two 302’x76’x26’ multipurpose service vessels in the HOSMPSV 310ES series for Hornbeck Offshore Services, LLC., the shipbuilder announced.   The new vessel, HOS Woodland (Hull 242)


Fire-stricken Icebreaker Overhauled

The icebreaker vessel Almirante Irizar docked for repair (Photo: SENER)

SENER concludes the Almirante Irizar icebreaker engineering works for re-outfit and overhaul   SENER reports it has completed the engineering works relating to the re-outfit and overhaul of the Almirante Irizar icebreaker following a fire accident in an Antarctic season.  


Frøy Server: Mono-Hull Innovation

Frøy Server

  When it comes to innovation in new boats, few hold a better record than the Norwegians. As pioneers in the salmon farming industry they have several decades of innovation in maintaining the farms and in transporting fish from farm to market as well as developing work vessels to support the


MES Delivers Ninth Eco-Ship Bulk Carrier

Photo: MES

Japanese shipbuilder Mitsui Engineering & Shipbuilding Co., Ltd. (MES) announced it has completed and delivered a 66,000 dwt type bulk carrier M.V. Draftvader (MES Hull No.1881) at its Tamano Works on July 17, 2015 to Solaris Marine Ltd., Liberia.


JIP Produces Next-generation LNG Carrier Design

The LNGreen concept uses existing technology to improve energy efficiency and performance. (Image: DNV GL)

LNGreen: next-generation LNG carrier concept by DNV GL, HHI, GTT and GasLog   The LNGreen joint industry project brought together experts from DNV GL and industry specialists from GTT, Hyundai Heavy Industries (HHI) and the shipowner GasLog to develop a state-of-the-art next-generation LNG


Quality Counts as AMC Boosts Production

Photo: AMC

Aluminium Marine Consultants (AMC) celebrated its acquisition of ISO 9001 quality management certification in June by placing four High Speed Support Vessels (HSSV) under build simultaneously in its new Isle of Wight UK building hall.  


Fuel Efficiency: The Way Forward

Roger Strevens

NorShipping debate centers on the matter of ship fuel efficiency The Immediasea Shipping Debate Forum ‘Fuel Efficiency - The Way Forward’ was held in connection with the Nor-Shipping event in Oslo, Norway, in June. Leading the panel was Mark Fuhrmann from Blue-C who invited leading


Newport News Shipbuilding Bags US Navy Submarine Contract

Image: Huntington Ingalls Industries

 The U.S. Navy has given Newport News Shipbuilding a $106 million contract to provide engineering and industrial support for submarines.    Huntington Ingalls Industries, parent company of Newport News Shipbuilding, said the contract will be worth a total of $564 million


Sterndrive Boost Offshore Fishing Charter Boat

Volvo Penta Diesel Sterndrive Proves Itself on New Offshore Charter Fishing Boat

  Capt. Rick Croson has been running a successful fishing charter business from North Carolina’s Wrightsville Beach for more than 10 years. When the time came to order a new boat, he made the unusual decision to request a diesel sterndrive power package


Flexible Pod System Key to WFSV Versatility

Photo: CTruk

workboatd designer and builder CTruk cites versatility as a key factor in Offshore Turbine Services’ (OTS) acquisition of seven 18.5-meter wind farm support vessels (WFSV) over the past three years.   OTS has worked its CTruk fleet all around the U.K


Eastern Shipbuilding Delivers Rena Marie

MV RENA MARIE (Hull 191)

Eastern Shipbuilding Group, Inc. delivered the M/V Rena Marie (Hull 191), the 61st 90-foot inland towboat to Florida Marine Transporters, Inc. (FMT) of Mandeville, La., continuing its ongoing new build program. Florida Marine Transporters, Inc


Wrecked 'Russian Submarine' Found in Swedish Waters

Image: Ocean X Team

 A wrecked mini-submarine was found last week in waters off of Sweden’s eastern coast.   Authorities believe it is a Russian model, primarily because of Cyrillic letters on the hull. They have not disclosed the exact location of the wreckage, but say it is around 1


AAM, UNH in Vessel Design, Construction Pact

University of New Hampshire New Research Vessel

  All American Marine, Inc.(AAM) together with the University of New Hampshire (UNH) are pleased to announce a contract for the design and construction of a new aluminum catamaran research vessel. All American Marine will build the 48’ x 17’ catamaran custom devised by Teknicraft






 
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