Marine Link
Tuesday, January 16, 2018

Propellors

China's Changxing Shipyard Clears Cruise Ship's Screws

Star Gemini Repair: Photo credit CIC Shipyard

The Star Cruises' ship 'Superstar Gemini' was towed in to the yard for emergency repairs to fouled propellors. En route from Shanghai to Jeju Island the Superstar Gemeni's port side propellor shut down after becoming entangled with fishing nets and ropes, and while in the CJK anchorage the remaining starboard side unit shut down as well, leaving the cruise ship without means of propulsion. CIC Changxin shipyard quickly arranged five tugs to bring 'Superstar Gemini' into its JiuhuaShan floating dock where it was found that the propellers were entangled with fishing nets and ropes. The shipyard immediately organized inspection and repair of the ship, and after working 20 hours, the propellors were cleared and the vessel smoothly un-docked, to head for the Shanghai cruise terminal.  

New Propellor Design Software by HydroComp

Propellor Geometry Window: Image courtesy HydroComp

HydroComps latest software product, 'PropElements' helps propellor specialists to design & analyse propellors PropElements is a new software product from HydroComp for detail propeller design and analysis. Propeller specialists will find it an essential addition to their propeller design toolbox, but it also was developed to elegantly address the system-level hydrodynamic needs of naval architects, as well. Useful for both design and analysis

Marine Propulsion – MAN Absorb Propellor Company

Propellor MAN Alpha Kappel

MAN Diesel & Turbo take over Kappel Propellor Designs The board of MAN Diesel & Turbo has approved the company’s take-over of Kappel propeller - including designs, software, and intellectual property together with continued co-operation with Mr Jens Julius Kappel. New fuel-saving and energy-efficient propulsion opportunities are available from the MAN Alpha propeller programme, which now fully integrates the Kappel tip fin propeller blade designs for both

Verreault Navigation Dry Docks French Coastal Carrier

Photo credit:Groupe Maritime Verreault Inc.

France's Verreault Navigation sees the vessel 'Georges Alexandre Lebel' through its scheduled dry-docking. The Georges Alexandre Lebel was in the Verreault dry dock from July 30, to August 4, 2012 for various steel work and machinery repair and maintenance programs. In addition to sandblasting  and repainting the hull, the ship's starboard propellor shaft and rudder were dismantled, machined and replaced. One bunker fuel tank was cleaned by high pressure hose.

China Shipyard Repairs Panama Canal Damaged Container Ship

German-owned 998-ft container ship 'Ilse Wulff' repaired in CIC Changxing Shipyard after touching bottom in the Panama Canal earlier in the year. Owners of the Ilse Wulff decided to combine the repair of bottom plating and a deformed propellor blade by bringing forward the vessel's first special classification survey. Ilse Wulff was put in to the CIC Jiuhuashan floating dock for the bottom plate and propeller blade inspections and the project work scope was confirmed by the owner’s

Container Ship Propellor Damage Fixed by FN Diving

Photo credit FN Diving

Heavy shaft vibrations led  a container shlp owner to call in FN Diving in Rotterdam for underwater repair of the propellor. The inspection of the propeller revealed a deformation on one of the blade tips due to impact damage, the blade was found bent up to a 70 degree angle towards pressure side, while the tip of the next blade was broken off. In cooperation with the Propeller manufacturer, FN Diving determined an in situ repair plan.

Italian Trawler Features Cummins Power

Built at the Cantier Navali Vittoria, a well known shipyard in Adria Italy, the trawler Profeta is fishing in the Adriatic out or her home port of Chioggia. With a 65-year history the builders are noted for having built over 300 vessels including tugs, trawlers, fast civil and military craft as well as dredgers, tankers and RoRo passenger ferries as well as yachts. Designed by naval architect Giorgio Damiani, the handsome 25.8 x 6.15-meter vessel is equipped with a bulbous bow and bow thruster

UK Offshore Wind Farm Support Vessel Launched

Rix Sea Shuttle Vessel

First of five boats ordered by Rix Sea Shuttle launched in Grimsby, NE England. The vessel will be employed in the transport of maintenance engineers to and from offshore wind turbines in the North Sea. Each of the aluminium vessels will be crewed and operated by Rix and are designed to carry up to 12 technicians at a speed of up to 25 knots. The remaining boats are to be delivered next year and in 2014, representing a  £7

Lost NZ Ferry Propeller Found 120m Down in Cook Strait

Ferry Aratere: Photo courtesy of Interislander

The propeller had been lost earlier this month from the Interislander ferry, the 'Aratere', which is expected to be out of service for 6 months as a result, but the propeller has now been found in Cook Strait by Seawork Salvage Co., contracted by KiwiRail, reports Radio New Zealand. The propeller was discovered about two nautical miles from Tory Channel, by using sonar equipment and an unmanned vehicle. Citing a Seawork spokesman

Damaged Bulker Faces St Lawrence Seaway Closure Deadline

Orsula aground: Photo credit US Coast Guard

The loaded grain carrying bulk ship 'Orsula', a 656-foot Marshall Islands-flagged vessel, has been refloated after running aground near Tibbetts Point in the St. Lawrence Seaway, on Boxing Day, but the US Coast Guard report significant damage to her propellor. The 'Orsula' sailed from Duluth, Minn., with 20,000 tons of wheat, and was planning to exit the St. Lawrence Seaway before it closes for the winter on Monday, 30, December 2013.

Tugboat Engine Failure Imperils Alaska Drillship Tow

Kulluk & Tugboats: Photo credit USCG

Tugboat 'Aiviq' experienced total engine failure, casting it & the Shell drilling rig  'Kulluk' adrift in stong winds & heavy seas, S. of Kodiak Island. The US Coast Guard cutter Alex Haley was sent to assist, establishing a tandem tow of both Aivig and Kulluk, which effectively prevented their drift towards shoal water, then, due to the severe weather the tow-line parted and became entangled in one of the cutter's propellors. The USCG recalled the vessel to base.

Contra-Rotating Propellors: New System Prediction Software

New features for the industry-standard resistance and propulsion software, HydroComp's NavCad. Many contemporary marine vehicles are being outfitted with contra-rotating propellers (CRP), and naval architects need the ability to model the performance of CRP systems – a capability that has been lacking until now. As part of its ongoing internal R&D program, HydroComp, Inc. has just deployed a new CRP system analysis module into HydroComp NavCad®

Latest Technology Gives New Bulkship a Fuel-saving Push

Seahorse 35000-class Bulker: Image credit Stone Marine Propulsions

Designers, builders & propellor suppliers employ latest technologies to achieve good results in sea trials of the latest 'Seahorse 35000' bulk carrier. The combined efforts of Stone Marine Propulsion, the NPT propellers designers and manufacturers, Grontmij/Schmidt Maritime the vessels designers, Becker Marine and builders Yangzhou Guoyu bear fruit for the latest Seahorse 35.000 dwt bulk carrier recently launched

Numerical Towing Tanks A Practical Reality?

Challenge 1  Trimmed hexahedral mesh around the hull and rudder with polyhedral overset mesh around the propeller.

Since the first commercial ship basin was commissioned in 1883, towing tanks have provided naval architects with a reliable method of predicting the performance of a ship at sea. Towing tanks are used for both resistance and propulsion tests, with towed and self-propelled ship models used to determine how much power the engine will have to provide to achieve the speed laid down in the contract between shipyard and ship owner.

ONR to Christen Advanced Electric Ship Demonstrator

The Advanced Electric Ship Demonstrator (AESD), Sea Jet, funded by the Office of Naval Research (ONR), is a 133-ft. vessel located at the Naval Surface Warfare Center Carderock Division, Acoustic Research Detachment in Bayview, Idaho. Sea Jet will operate on Lake Pend Oreille, where it will be used for test and demonstration of various technologies. Among the first technologies tested will be an underwater discharge waterjet from Rolls-Royce Naval Marine, Inc

Smit Orders Damen Stan Tug

Smit International awarded a contract to Damen Shipyards Gorinchem for the construction of a new terminal tug, a Damen Stan Tug 3509 for delivery end of this year under yard Nr. YN511606. Built as an enlarged Damen Stan Tug 2909 under standard rules of Bureau Veritas, the vessel will have an overall length of 35.3 m, a beam o.a. of 8.9 m, a draft of 4.3 m and a displacement of 420 tons with empty tanks. The twin screw tug will be powered by two Caterpillar 3516B TA/A main engines driving

Delivery: Kosnac Takes June K. from A&B Shipyard

Kosnac Floating Derrick Corp. of Staten Island, NY took delivery of the 2,700 hp June K, the company's first twin-screw tug and its first new build after three generations of Kosnac family management. "We took everything we learned from 75 years of using other peoples' boats in New York waters," said Capt. Fred Kosnac, "and put it into a design specifically adapted to the wide-ranging conditions of New York harbor and the rivers that flow into it."

Tognum & Rolls Royce Cooperate on Two Power, Propulsion, Contracts

MTU 16V 4000 Engine: Photo credit Tognum

The two companies join forces to meet two orders for 16 MTU engines and Rolls Royce propellor-rudder systems The first delivery comprises twelve MTU 16V 4000 M63 engines destined for Camorim, the Brazilian shipping company. Twin MTU engines will be used to power Rolls-Royce propeller-rudder systems on a total of six tug boats. Each engine in this order delivers power of 2,000kW, and its value lies at some three million euros to Tognum

Propellor Club of Jacksonville Honors W&O Employee

Tammy Emerson: Photo credit W&O

Tammy Emerson awarded Maritime Member of the Year for outstanding contributions to the Propeller Club and the maritime industry Longtime W&O-employee Tammy Emerson, Senior Outside Sales Representative, for the leading marine equipment supplier, has been recognized as the Propeller Club of JacksonvilleÂ’s 2011-2012 Maritime Member of the Year. Emerson received this distinction as a result of her commitment to the club and its mission to promote the maritime industry.

Groundbreaking DC Bus System in New Ship

M/V Abis Dover: Photo credit Alwijnse Marine Systems

One of the first ships in the world to use a DC bus system for the main electrical installation recently entered service – the 'Abis Dover'. Built by ShipKits shipyared in a project that included Vuyk Engineering Groningen, Alewijnse Marine Systems, all based in The Netherlands, and Finland’s Vacon, the ship’s upper cargo hold is a remarkable 80 m (262.5 ft) in length, almost 75% of the LOA of 107m (351ft)

MAN Supply Dredger Propellor Blade & Nozzle Upgrade

MAN Alpha Prop & Nozzle: Photo credit MAN

NCC-owned dredger benefits from recent PrimeServ exchange and modernisation of propeller blades & propeller nozzle – with payback time of just 1½ years
. MAN Diesel & Turbo’s PrimeServ division in Frederikshavn has, in close cooperation with shipowner and constructional engineering company NCC, performed a propulsion equipment upgrade for the ‘M/V Baltic’, a 900 m³ sand and gravel dredger.

Hartzell Introduce New Adjustable Pitch Propellor

The Series 44M with the AM propeller design is suitable for applications from engine room exhaust to cargo hold ventilation fans. The new die-cast aluminum propeller has been specifically engineered to enhance the operating performance of their Series 44M Ductaxial fan. The Series 44M with the new AM propeller is available in sizes 12 to 48 inches and produces up to 65,000 CFM and up to 4 inches of static pressure.

Beached Yacht Salvage Pulls Crowd

USCG Monitor Yacht Salvage Attempt: Photo credit USCG

The 64-foot yacht 'Rays the Bar' driven ashore on Vilano Beach, Florida, center of attention for responders & spectators. A response operation for a 64-foot yacht on the shoreline at Vilano Beach, Fla., involving the Coast Guard, St. Johns County Fire Rescue, St. Johns County Sheriffs, commercial salvage and environmental response companies drew a large crowd of spectators. On passage from Boston to Fort Lauderdale in heavy seas and dense fog the vessel damaged its propellors as it

Maritime Reporter Magazine Cover Dec 2017 - The Great Ships of 2017

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