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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


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


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


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


VIDEO: WinGD X-DF Engine Powered Chem Tanker Passes Test

The first dual-fuel two-stroke engine employing the low-pressure X-DF gas admission technology developed by Winterthur Gas & Diesel (WinGD) passed the final milestone in its evolution from a technical concept to commercial operation as a marine main engine.  


Terntank's first 15000DWT Chemical Tanker Passes Sea Trials

Terntanks first 15000DWT Chemical Tanker with WinGD X-DF engine  Photo WinGD

The first dual-fuel two-stroke engine employing the low-pressure X-DF gas admission technology developed by Winterthur Gas & Diesel (WinGD) has passed the final milestone in its evolution from a technical concept to commercial operation as a marine main engine.


The American Club Reports Solid Progress in 2015

Arnold Witte (Photo: Donjon Marine)

The American Club reported solid progress during 2015 at the annual meeting of its members held in New York yesterday. Despite a challenging economic climate, the Club’s business developed respectably, and 2016 had started on a positive note.  


US Navy Accepts Delivery of Future USS Montgomery

Official U.S. Navy file photo of Independence variant littoral combat ship

The U.S. Navy has accepted delivery of future USS Montgomery (LCS 8) during a ceremony on June 23 at the Austal USA shipyard in Mobile, Ala.   Marking the official transfer of Montgomery from the shipbuilder to the Navy, delivery is the final milestone prior to commissioning


Ferry Design Contest Winners Announced

University of Strathclyde’s entry, SAVUTEC: Safe and Affordable Ferry

The winners of the Worldwide Ferry Safety Association’s (WFSA) Safe Affordable Ferry Competition, as determined by a panel of judges, have been announced by WFSA Executive Director Dr. Roberta Weisbrod.   The requirements of this year’s competition were to design a safe and


Eastern Delivers Escort Tug to Bay-Houston Towing

ZYANA K (Photo: ESG)

Eastern Shipbuilding Group, Inc. announced the delivery of the Escort Tug ZYANA K for Bay-Houston Towing Co. on May 5, 2016. This series of Robert Allan, LTD. (RAL) designed Z-Tech 2400 Class Terminal & Escort Tugs is currently under construction at Eastern’s Nelson Street facility


GAC's HullWiper set to launch in Rotterdam Port

Hullwiper in operation Photo GAC

GAC EnvironHull has announced that its pioneering hull cleaning system, HullWiper, will be available to shipowners berthing in the Port of Rotterdam next month. HullWiper - which will be demonstrated at an event co-hosted by GAC EnvironHull and the Port of Rotterdam at the port on 23 June - is


Panama Canal Ends Depth Restrictions

Photo: Panama Canal Authority

 Panama Canal Authority said it has lifted restrictions on the depth of ships passing through that had been imposed since April because of low water levels caused by severe drought, says a report in AP.   On April 18, Panama Canal started imposing restrictions on the depth of ships


Second LNG-powered Cement Carrier Delivered

(Photo: Leif Pape)

Dutch shipbuilder Ferus Smit has delivered the second LNG-powered cement carrier, MV Ireland, to owners JT Cement, a joint venture between Swedish shipping company Erik Thun AB and Norway’s KG Jebsen Cement.   MV Ireland, along with sister vessel MV Greenland delivered in December 2015


DNV GL Issues First “Clean Lay-up” Declaration

FPSO Munin, currently laid up at Labuan, Malaysia, is the first vessel to receive the DNV GL “Clean Lay-up” declaration. Photo: DNV GL

 Classification society DNV GL announced at the Posidonia trade fair that it had issued the first “Clean Lay-up” declaration under its newly released classification guideline   The guideline enables shipowners and managers to demonstrate that their vessel is laid up in a


DNV GL Works with Industry Leaders to Develop a New LPG Carrier

The LPGreen project partners from HHI, Wärtsilä, MAN Diesel & Turbo, CMM and DNV GL in Athens. Photo: DNV GL

 DNV GL has initiated a joint industry project for the design of a state-of-the-art next generation LPG carrier.    LPGreen aims is to develop a more energy efficient, environmentally friendly, and safer vessel for the transportation of LPG products


Catamaran Ferry Delivered to Majestic Ferries

HSC Catamaran Passenger Ferry Majestic 7 (Image: Incat Crowther)

The recently launched Majestic 7 is the first of four HSC catamaran passenger ferries designed by Incat Crowther to be delivered to Majestic Ferries in Singapore. Majestic 7, part of a multiple-vessel order which has been further expanded to include a pair of larger capacity vessels due to be


Rapido Gee: 42m Utility Vessel Delivered

Photo: Incat Crowther

Rapido Gee, a 42m steel monohull utility vessel, has been delivered and is currently in transit to the Middle East. The vessel will be operated by Rashied Marine Services in the service of offshore platforms.   Designed by Incat Crowther and built by Strategic Marine


Austal Launches Offshore Crew Transfer Vessel for CMS

(Photo: Austal)

Austal Australia has launched Hull 392, a 70-meter offshore crew transfer vessel for Caspian Marine Services Limited (CMS) of Azerbaijan, at the company’s Henderson shipyard in Western Australia.   Following the contract award in June 2015, construction commenced in October 2015


AkzoNobel Wins Major Environmental Award

Mike Winter accepting award on behalf of AkzoNobel

AkzoNobel’s pioneering methodology for rewarding ship owners who use sustainable hull coatings has been named Environmental Leader Product of the Year for 2016. The award recognizes the introduction of the shipping industry’s first carbon credits methodology






 
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