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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


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

Hurtigruten’s New Hybrid Expedition Ships Named

Image: Hurtigruten

Hurtigruten’s two new hybrid powered expedition ships under construction at Kleven Yards have been named Roald Amundsen and Fridtjof Nansen, after two influential Norwegian polar pioneers from the era when the company itself first started offering adventure travels

Marine News Boat of the Month: October

Image: Tuco Marine

Tuco Marine’s Arctic Workboat Daughter Craft is Marine News' October 2016 Boat of the Month.   Danish producer Tuco Marine has introduced an all new Arctic Workboat Daughter Craft. Developed in response to international requests and specifications

USN to Commission LCS Detroit

The future Freedom-variant littoral combat ship USS Detroit (LCS 7) is pierside on Detroits waterfront in preparation for its commissioning on Oct. 22, 2016. LCS-7 is the sixth U.S. ship named in honor of city of Detroit.

The Navy will commission its newest Freedom-variant littoral combat ship, Detroit (LCS 7), during an 11 a.m. EDT ceremony Saturday, Oct. 22 on Detroit's waterfront. Detroit is the sixth U.S. ship in our nation's history to be named in honor of city of Detroit.

Steel Cut for CIMC ORIC's First FORAN Project

Photo: SENER

The steel cutting ceremony of the first project designed with the FORAN system by CIMC Ocean Engineering Design and Research Institute Co., Ltd. (CIM ORIC) was held in the Chinese shipyard Zhoushan Changhong International Shipyard Co., Ltd. on September 23.

North Korea Builds Largest Missile Submarine Yet

 Satellite footage suggests that the North Korean regime of Kim Jong-Un has begun development of a massive new submarine capable of launching ballistic missiles further potentially threatening the US, reports the Telegraph.  Images captured by commercial satellites in September show

Trelleborg Bears Weight of Largest Ever Offshore Facility

Shell’s Prelude FLNG (Photo: Shell)

Trelleborg’s engineered products operation has supplied a selection of bearing solutions for the world's first floating liquefied natural gas (FLNG) project – Shell’s Prelude FLNG.   Trelleborg has manufactured and delivered 52 vertical elastomeric bearings and 156

Grand Bahama Shipyard: Investing in the Future

(Photo: Grand Bahama Shipyard Limited)

MR spent time with Graham Couser, VP of Sales and Marketing, Grand Bahama Shipyard Ltd. (GBSL), for updates and insights on how this yard is faring in the current market and investing for the future. As the largest ship repair yard in the Caribbean, Grand Bahama Shipyard Limited

VARD confirms Two Hapag-Lloyd Cruises vessels Deal

Luxury Expedition Cruise Vessel Hapag-Lloyd Cruises Photo Vard

Vard Holdings Limited (“VARD”), one of the major global designers and shipbuilders of specialized vessels, confirmed the contracts for the design and construction of two luxury expedition cruise vessels for TUI Group’s German luxury cruise business Hapag-Lloyd Cruises.

ASRY Woos Back Greek Major Owner

ASRY for the recent repair of ‘Cap Diamant’,   ASRY   Photo Cap-Diamant-web

ASRY has successfully brought one of the European tanker market’s biggest tanker fleet owners back to the yard. Euronav, the Greece-base owner, operator and manager of a fleet of 53 modern large tankers, chose ASRY for the recent repair of ‘Cap Diamant’, a  Suezmax tanker

Horizon Flips First Hull for McAllister

Photo: Horizon Shipbuilding

Horizon Shipbuilding, Inc. of Bayou La Batre, Ala. said it has reached milestone in its contract with McAllister Towing.    The Capt. Brian A. McAllister, the first of up to four hulls, has been flipped and set on the shipbuilding ways

Gibdock Performs Quick Freight Ferry Repair

Photo: Gibdock

Gibdock has redelivered the Seatruck Ferries container/ro-ro vessel Clipper Point on-time, after a fast turnaround 11-day renewal project for the Clipper Group-owned operator. The ship has subsequently been introduced to Seatrucks’ Irish Sea operations.  

Robert Allan, Sanmar Design New Z-drive Tractor Tug

Image: Sanmar

The TRAktor-Z 2500SX is the new Z-drive tractor tug designed by Robert Allan Ltd. in collaboration with Sanmar Shipyards. Engineered for maximum efficiency in both harbor ship handling and towing duties, this compact, under 24 m rule length design offers dependable omnidirectional performance for

Sir David Attenborough Lays Keel for New Polar Research Ship

(Photo: Cammell Laird)

U.K. shipbuilder Cammell Laird held one of the largest ceremonies in its history when Sir David Attenborough joined more than 1,000 people for the keel laying of the new £150 million polar research vessel.   Construction was officially started by the world-renowned naturalist and

Robert Alan Designed ATB Tugs for ITB Marine

ITB Marine Group Ltd. (ITB) is currently well into construction of the first of two, twin Z-drive, ATB pusher tugs photo Robert Alan

The ITB Marine Group Ltd. (ITB) is currently well into construction of the first of two, twin Z-drive, ATB pusher tugs for service on the West Coast of North America. The tugs are being built at their Annacis Island Shipyard near Vancouver. The tugs will be connected by an articulating pin system

Ecospeed Strengthens Polar Code Compliance

The operational success of the 1995-built RRS Ernest Shackleton is an exemplar of the Ecospeed coating’s performance (Image: Subsea Industries)

Subsea Industries has received an order for its specialist hull and rudder coatings for application to a shallow draught anchor handling tug supply (AHTS) vessel under construction at Turkey’s Atlas Shipyard.    The hard-type coatings were selected amidst strong competition

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