• 2016 May 5 13:14

    Jensen Maritime designs new tractor tug meeting Tier IV emissions standards

    Jensen Maritime, Crowley Maritime Corp.’s Seattle-based naval architecture and engineering firm, has designed a new high performance tractor tug for Vessel Chartering LLC that features some of the first Tier IV engines meeting higher federal air emissions standards among U.S. tugboats.

    The multipurpose tractor tug, which is being built by JT Marine of Vancouver, Wash., was jointly developed by Vessel Chartering LLC and Jensen. The 110-foot long vessel will feature the ship assist and escort capabilities of smaller harbor tugs, while delivering the improved towing performance and increased range of larger ocean-going tugs. The escort capability was enhanced to provide support for assisting large, 18,000 TEU containerships due to an increased future demand in West Coast ports of call. The design offers the flexibility to support ship escorts, assists and towing.

    The engines are designed to meet the federal Tier IV standard, which incorporate the emissions-reducing performance requirements by the U.S. Environmental Protection Agency (EPA). To meet the requirements, the two engines on this vessel use systems that clean exhaust gases after they have left the engines. This is the third tugboat designed by Jensen Maritime with engines meeting the Tier IV requirement.

    With new ballast water treatment requirements on the horizon from the EPA and U.S. Coast Guard, the tug was designed without any ballast tanks, thereby eliminating the need for ballast water discharge and the potential transfer of invasive species. In lieu of ballast tanks, the tug will transfer fuel, as necessary, in order to maintain proper trim.

    The vessel, which will be 40-feet wide, will be powered by a pair of 3,385-horsepower Caterpillar 3516 Tier IV engines. With an electrically powered, double drum tow winch aft by Rapp USA and an electrically powered hawser winch forward by Markey Machinery as deck machinery, the vessel will be capable of a 93-to-95 short-ton bollard pull. Both winches’ electrical power will remove any chance of a hydraulic oil spill on deck.

    The tug is designed to carry up to 123,000 gallons of fuel, 4,300 gallons of fresh water, and up to 4,500 gallons of urea, which is used for treatment of the main engine exhausts in order to meet Tier IV emissions requirements. A water maker is being installed for potable water when out at sea.  A large pilot house will provide all-around visibility, and the deckhouse has an open feel with a large mess and lounge area along with accommodations for a 10-person crew.  

    Seattle-based Jensen Maritime Consultants Inc. is a naval architecture and marine engineering firm owned by Crowley Maritime Corporation. The company offers a diverse range of consulting, design and engineering services developed from more than 50 years of experience working around the world. Jensen is a recognized leader in the design of all types of vessels and has built a favorable reputation on a long history of successful designs and conversions with close attention to engineering basics. The company's services include detail and conceptual design and engineering, vessel modifications, lofting, regulatory and shipyard liaison as well as on-site consulting services and on-location assistance anywhere in the world.

    About JT Marine Inc.
    JT Marine Inc. has more than 80 years of combined shipbuilding and repair experience and offers an ideal, complete service location for major retrofits and vessel repair. With covered fabrications bays outfitted with overhead cranes, and assembly locations alongside 1,200-ton dry dock, JT Marine is equipped to handle whatever job you need, big or small. In addition to traditional steel work, skilled workforce is capable of meeting specialty services including paint, aluminum, electrical, carpentry, and pipe work.


2024 May 25

15:33 Bahri could be buyer of four VLCCs with $480 million
14:27 Panama Canal returns to normal operations
12:03 Equinor and partners to invest to maintain high gas production at Troll
11:41 Singapore carries out ship-to-ship bunkering of close to 1,340 metric tonnes of blended methanol
10:12 Australian operator renegotiates ferry deal with Finnish shipbuilder following delays

2024 May 24

18:00 MSC resumes Far East – Baltimore service
17:22 First LNG tugboat with hybrid system goes into operation in Singapore with mtu gas engines from Rolls-Royce
16:47 S. Korea slaps sanctions on 7 N. Koreans, 2 Russian ships for illegal trade with Russia
16:24 COSCO Shipping plans to build 120 ships worth $4.5 billion
15:46 LR award AiP to CMB.TECH and Damen for hydrogen tug solution
13:51 Kongsberg Maritime opens a new facility in Kochi, India
13:11 Wind Challenger to be installed on coal carrier for J-Power
12:41 India, Egypt top destinations for Russian seaborne fuel oil, VGO exports in April
12:21 Newbuilding contracts signed by Greek shipowners are up more than 50% this year to March
11:40 The port of Piraeus receives permission to continue dredging from the State Council
11:05 Eastern Shipbuilding Group awarded contract to construct Fisher Island Ferry
10:49 Huangpu Wenchong receives contract for up to eight methanol-fuelled bulkers
10:28 Cadeler signs installation vessel reservation agreement for upcoming wind farm installation projects
09:58 ScanOcean launches renewable biodiesel fuel
09:42 Uralkali fertilizer exports hit 7.6-million tonne mark by the end of 2023

2024 May 23

18:00 Cadeler places order to build its third A-class vessel
17:34 Van Oord successfully installs first monopile using KENC’s flange mounted upending tool
17:12 The fire engulfed approximately 600 square meters of metal waste on industrial premises at the port of Hamburg
16:57 Hapag-Lloyd resumes CGX service between China, West Africa and Germany
16:38 The world's first methanol-powered container ship now on weekly service to the Port of Gothenburg
15:32 Inmarsat launches combined VSAT, LEO and LTE managed connectivity service
14:52 Dominican Republic, Oman and Saudi Arabia join the International Transport Forum
14:21 Canada’s TMX pipeline expansion to boost Asian crude oil trade
13:44 Norwegian Cruise Line expands its presence across Asia Pacific, Australia and New Zealand with over 30 new itineraries
13:21 Canadian Coast Guard issues $15,000 fine for a hazardous vessel
13:18 MABUX: Bunker Outlook, Week 21, 2024
12:51 Dunkerque LNG launches a request for interest for its Small Scale LNG services
12:11 SITC signs a strategic cooperation framework agreement with Fujian Port Group
11:40 Wartsila to convert two Scandlines ferries to plug-in hybrid operation
11:03 Hapag-Lloyd upgrades sea shuttle service between Ukraine and Romania
10:30 Japanese companies complete the early stages of a cross-industry project to create a secure data exchange system between shipyards and shipowners
10:02 GTT Strategic Ventures and Engie New Ventures jointly invest in CryoCollect to support the development of a unique CO2 capture technology for biogas
09:25 NatPower Marine and Peel Ports Group announce plans for first ‘green shipping corridor’ between UK and Ireland

2024 May 22

18:01 Sea-Intelligence: Avg. minimum transit time up 39% on Asia-MED
17:46 Kongsberg Maritime announces energy-efficient upgrade for Solstad’s Normand Sentinel
17:23 FMC launches investigation of the impact of Canadian regulations on U.S.-flag carriers
16:59 Dataloy Systems launches groundbreaking widgets at Breakbulk Rotterdam
15:34 Pyxis Tankers announces JV agreement to acquire modern dry-bulk vessel
15:32 Vympel unveils two concepts of a universal dry bulk / container carrier of Project 00111 Belomorets
14:25 LR awards Approval in Principle to Seaspan Corporation for next generation feeder ship design
13:59 HD KSOE, SHI faces 1trn won contract delays
13:22 HD Hyundai Marine Solution builds ship smartcare center in Busan
12:42 BBC Chartering takes delivery of first “LakerMax” newbuilding, MV BBC LEER
12:16 Copenhagen Port of Malmo and Green2x enter into a partnership to design and operate a biofuel production plant
11:58 Aker BP extends Deepsea Nordkapp firm contract to end 2026
11:20 Echandia secures an order for the delivery of battery systems to a Northern European ferry operator
10:43 Asso.subsea and Nexans join forces on historic Celtic Interconnector Project
09:59 EST-Floattech supplies Octopus battery systems to Wight Shipyard for river Thames

2024 May 21

18:02 MOL holds completion ceremony for newly completed operation and maintenance training facility for offshore wind power generation in Kitakyushu
17:37 SAFEEN Group trials first electric tug in Middle East for Marine Services fleet
17:13 First vessel in new fleet of next generation Parramatta River ferries enters service
16:59 Port Houston container volumes up 5% to 324,177 TEUs in April 2024
16:25 The first prototype trials of the Blue Visby solution demonstrate significant savings of CO2 emissions
15:40 New Times Shipbuilding launches LNG dual-fuel bulker for Eastern Pacific Shipping
15:24 New container service to connect the Chinese port of Qingdao with Mexico
14:52 Astrakhan SRZ launches the Project 22870 Rescue Tug Mikhail Chekov
14:47 TFG Marine’s dual-fuel bunker vessel wraps up first refueling in Singapore
14:12 New Zealand’s Kotahi and Maersk sign a second long term freight agreement to December 2034
13:24 TotalEnergies launches the Kaminho deepwater project in Angola
12:04 Headway Methanol Fuel Supply System supports the successful FAT of China's first methanol dual-fuel low-speed engine
11:17 Alfa Laval receives over 100 orders for its low-flashpoint fuel supply system FCM Methanol
10:45 Port of Los Angeles container volume increases 12% to 770,337 TEU in April 2024

2024 May 20

18:00 ADNOC secures equity position and LNG offtake agreement in NextDecades Rio Grande LNG Project
17:31 EDGE Group and Fincantieri formalise MAESTRAL shipbuilding JV and announce 400 mln euro order for 10 naval vessels
17:02 Genevos awarded European Commission funding for hydrogen fishing vessel demonstrator in ‘H2-SEAS’ consortium