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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


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


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


AVEVA, DNV GL's Sesam Integration Cuts Cost

  Integration of Aveva and DNV GL's Sesam Reduces Costs in Maritime and Offshore Engineering. Engineers designing ship hulls and offshore floaters can now save time and money in the early design phase due to a breakthrough allowing transfer of 3D models from AVEVA Marine to Sesam GeniE


NAPA Streamlines Compliance with Class Design Rules

Image: NAPA

NAPA Steel and NAPA Designer updated to reduce man-hours and duplication associated with new Common Structural Rules BC&OT   Global maritime software, services and data analysis company NAPA announced the release of new tools and interfaces with class society software to streamline ship


UK Navy’s Ice Patrol Ship Gets a New Coating

On December 2, 2013, HMS Protector conducted a base inspection on the Ukrainian Vernadsky Research Base. The base was renamed Faraday Station in August 1977 in honor of British scientist Michael Faraday until Ukraine took over the operation of the base in February 1996. (Photo: UK Defense)

U.K. Royal Navy Ice Patrol Ship HMS Protector is deployed on operations for 330 days a year, mostly in the Antarctic region, making it essential that her underwater hull is protected against the harsh icy conditions she faces.   At the end of May


DNV GL Holds Hearing Ahead of New Rules Launch

Knut Ørbeck-Nilssen (Photo: DNV GL)

More than 800 customers and stakeholders will receive the new DNV GL rules today as part of an external hearing process before their publication and entry into force. According to DNV GL, the rules are the signature of the classification society


Crowley Takes Over Management of MSC Ships

USNS Victorious (Photo: MSC)

Crowley strengthens relationship with U.S. Navy, completes turnover of Military Sealift Command T-AGOS/T-AGM fleet   Crowley Maritime Corp. announced its global ship management group completed the turnover of the Military Sealift Command’s (MSC) T-AGOS/T-AGM fleet and is now


Samsung Bags $4.7bn Order for 3 FLNG from Shell Gas

Image:  Samsung Heavy Industries

 South Korean shipbuilder Samsung Heavy Industries Co. as won a 5.2 trillion won (US$4.7 billion) order to build three floating liquefied natural gas (FLNG) facilities, reports Yonhap.   Under the deal with the Netherlands-based Shell Gas & Power Developments B.V


Jotun to Update Performance Guarantees

The 17 National Standardization Bodies represented on ISO’s Marine Environment Protection Sub-committee (ISO-TC8-SC2) has voted in favor of circulating ISO 19030 parts 1 and 2 as Draft International Standards. In anticipation of final approval of the standard expected next year


Tuco Reveals New Naval Interceptor Vessel Design

Image: Tuco Marine

Following last week’s Seawork exhibition on workboats and small military and security vessels, Tuco Marine of Denmark reveals its newest vessel in the ProZero line. The ProZero 12m Interceptor. The interceptor is a high-speed craft suited for fast response interdiction, surveillance, patrol


Schottel: Propelling Inland Waterways for 65 Years

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Since the 1950’s, SCHOTTEL propels inland waterway vessels with Z-drives and individually fitted thruster concepts. On the Amazon River Schottel thrusters, modified especially for shallow draft operation with a flat bottom nozzle that is partially integrated into the vessels hull


Viking Delivers Response 35’ Tri- Landing Craft

Photo courtesy of Response Marine

After a protracted procurement process Viking has delivered a high speed, high capacity landing craft to Palm Beach County, FL.    Originally specified as a catamaran, the final design by Response Marine is more of a tri-hull as the center hull was enlarged and the bridge span lowered


Wave Piercing Cat Utility Craft Delivered to Nigeria

Photo: Incat Crowther

Incat Crowther has announced the delivery of Benreoch, a 30m Wave Piercing Catamaran Utility Craft built by Veecraft Marine in Cape Town, South Africa. The vessel was developed specifically for crew transfer to offshore platforms in Nigeria.


CARAT Exercise Series Kick-off in Philippines

CARAT is an annual, bilateral exercise series with the U.S. Navy, U.S. Marine Corps and the armed forces of nine partner nations. (U.S. Navy photo by Mass Communication Specialist 1st Class Jay C. PughReleased)

Members of the U.S. Navy and Marine Corps along with their Armed Forces of the Philippines (AFP) counterparts kicked off the 2015 Cooperation Afloat Readiness and Training (CARAT) exercise series during an opening ceremony in Puerto Princesa, Philippines, June 22.


2 Tugs from Robert Allan for Tauranga Port

Tai Pari in New Zealand waters

  The Tai Pari and Tai Timu, two RAmparts 2400W Class tugs designed by Robert Allan Ltd of Vancouver, Canada, have been delivered by Cheoy Lee Shipyards to the Port of Tauranga Limited. The Tai Pari arrived in New Zealand on June 5 after a 30 day voyage on her own bottom


Vietnamese Freighter Grounds off Albay Coral Reef

Damages to Coral Reefs Photo PCG

  Coral reefs in the vicinity waters of Legazpi, Albay were damaged by a Vietnam-flagged cargo vessel which ran aground 900 yards off the entrance of Legazpi City Port last Monday, June 15. MV Ocean 03, with 4,532 gross tonnages and manned by 21 Vietnamese crew


Blyth Workcats Wins ABP Survey Boat Contract

Blyth Workcats 14m survey boat to be built for ABP

  At the Seawork International Exhibition in Southampton, Blyth Workcats Ltd announced that Associated British Ports (ABP) has awarded it the contract for a new 14-metre survey vessel to be built at the company’s yard on Canvey Island, Essex, UK.






 
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