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Propeller

MAN Diesel Expands CP Propeller Portfolio

Photo courtesy MAN Diesel

In response to the market demand for very large CP propellers up to and beyond 30,000 kW and with diameters over eight meters, MAN Diesel is expanding its propeller portfolio to add two new, propeller hub-sizes – VBS2080 and VBS2240 (2080 mm and 2240 mm hub diameters respectively). These propeller sizes are typically destined for ConRo vessels, shuttle tankers and special vessels with high ice classes, and powered by MAN B&W two-stroke MC-C or ME-C main engines that directly drive a CP propeller. As the potential for improving propeller propulsive efficiency aft-ship optimization is far greater than that for improving diesel-engine fuel-oil economy, MAN Diesel has devoted more resources to its CP propeller program and associated aft-ship systems in recent years, with the aim of improving total propulsive efficiency by 8-10% within the next three to five years. Backed up by industry demand, MAN Diesel focuses on low environmental impact and optimal fuel-oil consumption. While these two factors can play against each other in diesel-engine design, they go hand-in-hand with propellers since an increase in propeller efficiency results in lower propulsion power and fewer emissions. Where the correct approach to the vessel-design process is taken and MAN Diesel are involved at an early stage in propeller and aft-ship optimization


Wärtsilä Opens Propeller Factory in China

Propeller in the new factory Wärtsilä's joint venture company in China, Wartsila CME Zhenjiang Propeller Co Ltd., inaugurated its new propeller factory at Zhenjiang in Jiangsu province. The new factory is expected to double Wärtsilä's capacity to manufacture this type of propellers. During the past ten years the output has increased by 500 percent. In 2007 up to May, there are 425 vessels contracted in China, which is 45 percent of the global vessel order intake


Mercury Marine Acquires Teignbridge Propellers

Mercury Marine announced today that it has acquired Teignbridge Propellers Ltd., headquartered in Newton Abbot, United Kingdom. Teignbridge Propellers produces bronze and Nibral (nickel, bronze, aluminum) propellers for yachts, patrol boats and commercial vessels. In addition to its line of standard and custom propellers, Teignbridge also produces a complete underwater package of stern gear for inboard-powered vessels, which includes rudders, shafts, struts, seals, logs and bearings.


Wärtsilä Acquires Propeller Repair Business in the U.K.

Wärtsilä has acquired the UK-based propeller repair company McCall Propellers Ltd. The company's net sales are $12.7m with 33 employees. McCall Propellers is the largest marine propulsion support services company based in the U.K. specializing in emergency repair of propeller equipment. The acquired company has purpose-built repair facilities next to Glasgow Airport, and work is carried out either in the workshop or on site anywhere in the world.


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.


New Fixed Pitch Propeller Design from Wärtsilä

Wärtsilä introduced the FPP Opti Design, a new fixed pitch propeller (FPP) design concept. According to Wärtsilä, the new design offers fuel savings of up to 4 percent and highly reliable full scale performance predictions. The concept has been developed utilizing the latest computational fluid dynamics (CFD) technology. The Wärtsilä FPP Opti Design has been developed at the company’s Technology and Service Centre in the Netherlands


Propeller Retrofits Saves 10 Percent Fuel

Benefits of fitting CLT propellers include fuel savings of around 10 percent while maintaining the same speed, according to Geneva-based shipowner Cargill International SA, which has recently released consumption figures for two of its Panamax bulk carriers. The 70,000 dwt Powhatan and Paiute had CLT propellers retrofitted in February and March 1998, after Cargill had already benefited from more than two years' first-hand experience of the CLT propeller concept developed by Madrid-based


Cleaning a Propeller

Luis.jpg

From the desktop of Luis Velarde, courtesy Rice Propulsion A propeller is exposed to all sorts of attacks underwater, such as rusting and adhesions of the sea. It is the key piece of the ship’s propulsion system, and thus deserves special attention.  The propeller is the element that allows the transformation of the mechanical energy of the engine into propulsion. A propeller in poor state is a disaster


UMC and MPR Join Forces

Worldwide underwater ship maintenance specialists UMC International and Dutch based marine propeller repair specialists Maritime Propeller Repairs (MPR) have signed an agreement to cooperate for workshop and in-water propeller repairs.   The agreement was signed in Asperen, The Netherlands on 23rd September 2011, at an open day hosted by MPR.  More than 300 visitors attended the event, and all were very enthusiastic about the new joint service


Schottel Celebrates CPP Milestone

Schottel SCP controllable-pitch propeller systems of the 5-X series are available with  power ratings from 1,000-20,000 kW.

German propulsion giant Schottel looks back at five decades of  controllable-pitch propeller (CPP) development. CPPs have been developed and produced on the Baltic coast of Germany since 1962 – initially in Rostock, and then in Wismar from 1964. The first units were manufactured for 86 freezer-trawlers of type Tropik for the Soviet Union. Four additional types were produced for GDR fishery vessels. The first years of controllable-pitch propeller production in Wismar centered on


MAN's G-Type Engine Notches 1,500 Orders

Illustration of the G80ME-C9 engine (Photo: MAN Diesel & Turbo)

Just six years after its introduction, MAN Diesel & Turbo has confirmed an order for the 1,500th G-type engine. Greek ship operator, Almi Tankers, will take delivery of the ultra-long-stroke 7G80ME-C9 type as prime movers for the two 317


Hornblower Flagship Retrofits with Thordon's Shaft Seals

Inspiration Hornblower has converted to the maintenance-free TG100 mechanical tail-shaft seals (Photo: Thordon Bearings)

Thordon Bearings’ US West Coast Distributor, Pacific Marine Equipment has successfully completed the installation of a pair of TG100 mechanical propeller shaft seals to Hornblower Cruises & Events’ 1000-passenger capacity twin screw flagship, Inspiration Hornblower.


Rolls-Royce to Equip Five New Cruise Ships

Promas System (Photo: Rolls-Royce)

Rolls-Royce has announced a new deal to provide propulsion and deck machinery to five cruise ships being built by Fincantieri at their Monfalcone and Ancona Shipyards in Italy.   The firm orders are to supply a Promas system, deck machinery and steering gear to two vessels being built


Con-Green 2000 - Next Generation of Feeder Vessels

Image: DNV GL

 The largest container vessels are designed for the greatest possible efficiency – maximum intake, minimum fuel consumption. Their smaller cousins, however, have not received the same level of attention – but this is beginning to change, says Jai Oh Sun, Engineer / Pre-Contract


MN100: Nautican

(Photo: Nautican)

The Company: Nautican engineers and manufactures hydrodynamic solutions that increase power and maneuverability, while significantly reducing fuel use and maintenance needs. Nautican offers Integrated Propulsion Units, High Efficiency Nozzles and Propellers, high aspect ratio Triple Rudders


Underwater Inspections a Boon - Hydrex

Courtesy Hydrex

Building upon conventional technical skills and know-how while also taking advantage of the latest technology, Hydrex offers a unique hull monitoring service to its customers. This gives shipowners total control of their ship's hull condition and consequently its performance


Embracing New Hull & Propeller Performance Criteria

Logos

ISO 19030 – to be published shortly – defines a set of fully transparent methodologies to measure changes in hull and propeller performance. As a leading coatings manufacturer, Hempel pioneered the performance guarantee based on achieving efficiency savings from maintaining a


DNV GL and Hempel to Cooperate for ISO 19030

Pic:  Hempel

 As a leading coatings manufacturer, Hempel pioneered the performance guarantee based on achieving efficiency savings from maintaining a fouling-free and smooth hull.    Therefore, Hempel warmly welcomes the introduction of this internationally recognised and accepted set of


ABB Debuts New Azipod Propulsion Model

Azipod XL (Photo: ABB)

ABB’s newly launched Azipod propulsion unit is said to be up to 10 percent more efficient than previous versions. ABB hopes to expand the appeal of the podded electric propulsion system beyond established markets with its improved efficiency and bollard pull.  


Thordon Launches New Service/Support Concept

Canada’s Thordon Bearings has introduced a global service and support (GSS) service to assist ship owners, shipbuilders and repair yards with the installation, commissioning, maintenance and shaft/stern tube alignment services of the full range of oil and grease-free Thordon propeller shaft


MAN Commissions Siemens to Supply Two-speed Gearbox for Vessel

MAN equips the boat with a 6,000 kilowatt (kW) MAN engine.

Siemens provides with an order from MAN out its expertise in the construction of switchable special gears. Flender two-speed transmission are individual, switchable solutions for displaying different operating modes for specialized vessels. Various translations in a transmission enable different


DNV GL Awards AIP for HMD’s Feeder Design

From left to right: Ole Grøne, Senior Vice President, Promotion & Sales at MAN Diesel &Turbo; Trond Hodne, DNV GL Business Director Maritime; Dug Ki Min, Vice President of the Initial Planning and Initial Hull Design Dept. at HMD; and Henning Kuhlmann, Managing Director at Becker Marine Systems (Photo: DNV GL)

Today at the SMM trade fair in Hamburg, DNV GL presented Hyundai Mipo Dockyard (HMD) with an Approval in Principle (AIP) recognizing the technical feasibility of the new Con-Green 2000 vessel design under the new DNV GL rules. The Con-Green 2000 project brought together partners HMD


MN100: ZF Marine Propulsion Systems

Wolfgang Schmid (Photo: ZF)

The Company: ZF Marine supplies propulsion system components for yachts, defense craft, high-speed ferries, workboats and commercial vessels, in a power range from 10 to 14,000 kW. The product portfolio includes a comprehensive range of transmissions (reversing, non-reversing and hybrid)


Vision of the Fjords: 2016 Ship of the Year

Vision of The Fjords (Photo: The Fjords)

 Vision of The Fjords, a futuristic carbon fiber tourist vessel operated by The Fjords DA, has won the Ship of the Year 2016 accolade at SMM in Hamburg.   The 40-meter-long, 399-passenger-capacity hybrid craft, which was completed by Brødrene Aa this summer


Wartsila Wins Deal for Four LNG Tankers

Wärtsilä will deliver a comprehensive scope of marine solutions from its own portfolio to four new LNG fuelled tankers for Swedish owners

Wärtsilä has been awarded a contract covering four newbuild tanker vessels. The ships are to be built at the Avic Dingheng shipyard in China, on behalf of three Swedish owners; Furetank (two vessels), Älvtank, and Thun Tankers, a fully owned subsidiary of Thunbolagen






 
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