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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


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.


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.


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


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


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


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


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


Ferus Smit Launches Arklow Cliff

 Dutch shipbuilder Ferus Smit said it has launched M.V. Arklow Cliff, the fifth vessel in a series of 10 to be delivered to Irish ship owner Arklow Shipping.   The vessel, Ferus Smit newbuild #428, was launched June 30 at the builder’s Westerbroek yard.  


New Propulsor Leverages PM Technology

Image: Steerprop / The Switch

Finnish collaborators have unveiled a new propulsion unit. Azimuth propulsion specialist Steerprop has rolled out its new CRP ECO LM propulsor featuring permanent magnet (PM) technology from The Switch.   Steerprop has been developing propulsion units since 2001, while The Switch


SCHOTTEL Debuts Underwater Mountable Thruster

(Photo: SCHOTTEL)

SCHOTTEL has expanded its portfolio with the successful tests of the 5.5 MW SRP 800 U rudderpropeller, which can be installed afloat for vessels that cannot be docked easily due to their size or area of operation. Besides application in larger offshore vessels or rigs


Wärtsilä Dual-fuel Engines for Tanker Newbuilds

New tankers for Erik Thun AB will feature Wärtsilä propulsion and fuel supply solutions (Image: Wärtsilä)

Wärtsilä said it has been contracted to supply the engines, propellers and fuel supply systems for four new tanker vessels. The ships will run on both liquefied natural gas (LNG) and diesel, and are being built at the Scheepswerf Ferus Smit yard in the Netherlands for Sweden based Erik


MAN Diesel & Turbo, MM-Offshore Partner

Pictured at the signing ceremony at Nor-Shipping (from left): Jan Hamann – President MM-Offshore; Helge Schmale – General Manager MM-Offshore; Jens Ring Nielsen – Senior Manager Propeller and Aft Ship, MAN Diesel & Turbo; and Poul Knudsgaard – Vice President and Head of Propeller and Aftship, MAN Diesel & Turbo (Photo: MAN Diesel & Turbo)

Propulsion/maneuvering specialists agree to develop and optimize efficient aft-ship solutions for future ship designs   At a signing ceremony on June 1 at the Nor-Shipping trade fair in Norway, engines manufacturer MAN Diesel & Turbo signed a cooperation agreement with ship equipment


New Push Boat Delivered to Devall Towing

Photo: Laborde Products

Devall Towing and Boat Service pushes into the future with Mitsubishi Engines The newly built M/V Jackson Scott has been delivered to owner Devall Towing and Boat Service of Hackberry, La. The Jackson Scott is a 64’ X 27’ inland push boat, powered by two fully mechanical


Tropical Opts for Seawater Lubricated Shaft Package

Image: Thordon Bearings

Thordon Bearings’ Jacksonville-based distributor Coppedge Marine has secured an order with Tropical Shipping for the COMPAC seawater lubricated propeller shaft bearing system.    The COMPAC systems destined for two 300TEU box ships under construction in China


Rolls-Royce Launches V-Line Variant of B33:45 Engine

B33:45 (Photo: Rolls-Royce)

Rolls-Royce has launched a V-Line version of its highly successful B33:45 engine series. At 600 kW per cylinder the new design delivers 20 percent more power than the B32:40, in a compact design allowing more power in the same footprint as its predecessor, the manufacturer said.


Plenty Ships Wins Chinese Ferry Order

Photo: CoCo Yachts

CoCo Yachts – Plenty Ships has won an order with Zhuhai Fast Ferry Company to build two aluminum high speed ferries.   Zhuhai Fast Ferry Company has several fast ferries in its fleet, including two CoCo Yachts designed Coastal Cruiser 288


Wärtsilä Wins Contract for New CLdN RoRos

Wärtsilä will supply controllable pitch propellers and shaft generator systems for two new RoRo vessels being built for CLdN Ro-Ro SA. (Photo: CLdN Ro-Ro SA)

 Wärtsilä said it has been awarded a contract to supply controllable pitch propellers and power take off / power take home (PTO/PTH) shaft generator systems for two new RoRo vessels being built at the Uljanik shipyard in Croatia.  


MOL Rolls Out Refined PBCF

Image: Mitsui O.S.K. Lines

 Mitsui O.S.K. Lines has announced that its group company MOL Techno-Trade will start selling an upgraded version of its energy-saving Propeller Boss Cap Fins (PBCF).   MOL Techno-Trade has sold more than 3,100 PBCFs to ship owners all over the world.  


WAAMpeller: World First Class-Approved 3D Printed Ship’s Propeller

Left to right: Kees Custers, Research Engineer Damen Shipyards Gorinchem; Vincent Wegener, Managing Director RAMLAB; Wei Ya, Postdoctoral Researcher RAMLAB; Constantinos Goulas, Postdoctoral Researcher RAMLAB; Max van der Zalm, Design Engineer Damen Schelde Naval Shipbuilding; Don Hoogendoorn, Principal Research Engineer Damen Shipyards Gorinchem; Kelvin Hamilton, Technical Consultant Autodesk; and Laurens van Ballegooy, Sales Manager Promarin (Photo: RAMLAB/Damen)

A consortium of organizations are working toward a landmark achievement in the maritime sectors: creating the world's first class-approved 3D-printed ship's propeller.   As many sectors of the shipbuilding industry suffer due to overcapacity


Thordon, DDW-D Partner for Shaft Line Conversions

Terry McGowan, President and CEO, Thordon Bearings (seated right), and Mohammad Rizal (left), Chief Operating Officer of Drydocks World- Dubai, sign an agreement that affirms the two companies’ efforts to convert ships to seawater lubricated propeller shaft lines from oil (Photo: Thordon Bearings)

Thordon Bearings and Drydocks World-Dubai (DDW-D) have signed an agreement under which the UAE-based shipyard will work together with Thordon Bearings Inc. to promote the conversion of ships’ oil lubricated propeller shafts to Thordon’s COMPAC open seawater lubricated bearing system.


St. Johns Building Landing Craft Series

Photo: SJSB

Palatka, Fla. shipbuilder St. Johns Ship Building (SJSB) said it is currently constructing the first of three new vessels in a series of 190 foot landing crafts for a Caribbean group.   This vessel will be powered by twin 700 HP Cummings QSK19 with Schlottle rudder propellers


DMC Gdańsk Gains EN 1090, ISO 3834 Certifications

Photo: Damen

Damen Marine Components (DMC) Gdańsk, one of the Damen Shipyards Group’s locations for the production of steel components including propeller nozzles, rudder installations and cranes, has received EN 1090 and ISO 3834 certifications.  






 
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