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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


Tuco Receives Wind Farm Vessels Order

Rendering courtesy of Tuco Marine

Tuco Marine’s 11m ProZero Wind Farm Service Daughter Crafts has been chosen for WINDEA's new Ulstein SOVs   Tuco Marine Group will supply its 11m ProZero Wind Farm Service Vessel daughter crafts to the two Ulstein X-stern vessels ordered by the German based Bernhard Schulte affiliate


US Builder Secures Wind Farm Supply Vessel Order

Photo: Blount Boats

Rhode Island based shipbuilder Blount Boats signed a contract with Rhode Island Fast Ferry for the construction of a crew transfer vessel (CTV) that will operate for Deepwater Wind Block Island, the shipbuilder announced today.   The 21-meter aluminum vessel was designed by South Boats IOW


Historic Warship Docked for Restoration

USS Constitution enters Dry Dock 1 in Charlestown Navy Yard to commence a multi-year planned restoration period. This is Constitutions first time in dry dock since its 1992-1996 restoration. (U.S. Navy photo by Mass Communication Specialist Seaman Matthew R. Fairchild/Released)

One of the world's oldest commissioned warships has entered dry dock for a planned multiyear restoration, the U.S. Navy reports.   On May 19, USS Constitution eased into Dry Dock 1 at Charlestown Navy Yard Boston National Historical Park with the help and coordination of a large team of


USS Freedom (LCS 1) Completes Rough Water Trials

USS Freedom (LCS 1) in the Southern California operating area. (U.S. Navy photo by Mass Communication Specialist 1st Class Joan E. Jennings/Released)

The littoral combat ship USS Freedom (LCS 1) completed Seakeeping and Structural Loads Trials, commonly referred to as Rough Water Trials (RWT) in late March the Navy reported May 21. The U.S. Navy must demonstrate the seaworthiness and structural integrity of each new ship class


MAIB Blames 'Structural Weakness' in Cheeki Rafiki Capsize

Cheeki Rafiki file photo by Corriere

 An accident report into the loss of the Cheeki Rafiki mid-way through a transatlantic crossing last May, found that undetected damage to fittings around the keel after a string of earlier groundings are among the likely causes, says the Telegraph.  


Damen Introduces New OPV Design

Image: Damen

On April 20, Damen gave a sneak preview of its newly designed second generation offshore patrol vessels (OPVs) during the annual OPVs & Corvettes Asia Pacific conference in Singapore.   Damen’s Design & Proposal Manager Piet van Rooij explained how this new OPV has been


US Navy is Buying the Wrong Ship, Costing Taxpayers Billions

U.S. Navy photo by Walter M. Wayman

The United States will spend $585 billion on its armed forces in 2015 — the biggest military budget in the world by far. That’s just the Defense Department budget and doesn’t include the tens of billions of dollars that Washington spends on veterans


Maritime Innovation Award for Subsea Industries

RINA

  The 2014 Maritime Innovation Award, given jointly by the Royal Institution of Naval Architects and QinetiQ, has been presented to Subsea Industries for the product Ecolock. The Maritime Innovation Award is presented to an individual or organisation in recognition of outstanding


Zentech to Perform ZAIMS Work on Brazilian Aircraft Carrier

Aircraft Carrier São Paulo at sea (Image: Zentech)

Zentech’s President Ramesh Maini announced that the company has been awarded a contract to perform an inspection and evaluation of the hull steel for the Naval Aircraft Carrier São Paulo, as part of the Brazilian Navy’s upgrade of this flagship vessel.  


Blyth Workcats to showcase Catamaran Designs at Seawork

Design evolution of Blyth Workcats will be on display at Seawork on Stand B27

  The design evolution of Blyth Workcats will be on display at Seawork on Stand B27 where the company will be showing examples from its versatile range. Well known for their robust seaworthiness and economical performance, workboats from this well-established Essex yard are able to perform


Crew Winched to Safety Near Skegness

Two people have been winched to safety after their vessel suffered engine failure and began to take on water, the U.K. Maritime and Coastguard Agency reported.   The call came in as a Mayday to Humber Coastguard Operation Centre at 7:36 a.m


Autodesk Bulgaria Shipbuilding Seminar

SSI announced it will host the Autodesk Bulgaria Shipbuilding Seminar for shipbuilders, naval architects and marine engineers to learn about the challenges facing the shipbuilding industry in Bulgaria and find out how Autodesk's Extended Digital Prototyping solutions


Baltika's DP and Autopilot Pass Ice Trials

Baltika icebreaking (Photo: Aker Arctic)

The dynamic positioning control system and autopilot onboard the icebreaking rescue and emergency vessel Baltika have been approved as meeting performance expectations, following a set of Arctic ice trials in the Kara Sea.   Developed by Finnish company Aker Arctic Technology


BMT’s Fleet Management System to Debut at Nor-Shipping

Photo: BMT SMART

BMT SMART Ltd., the specialist fleet and vessel performance management company of BMT Group, will launch its new SMARTFLEET Management system at Nor-Shipping in Oslo next month. Technical experts will be on hand to showcase the system and its capabilities whilst discussing with delegates their


Incat Crowther Designing San Francisco Ferries

400-pax ferries for San Francisco.

  Incat Crowther is designing a pair of 41m catamaran passenger ferries for WETA of San Francisco. The design of the vessels, which will be built by Kvichak Marine Industries, showcase Incat Crowther’s ability to analyze, dissect and meet a set of requirements.






 
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