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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


BMT’s Fleet Management System to Debut at Nor-Shipping

Photo: BMT SMART

BMT SMART Ltd., the specialist fleet and vessel performance management company of BMT Group, will launch its new SMARTFLEET Management system at Nor-Shipping in Oslo next month. Technical experts will be on hand to showcase the system and its capabilities whilst discussing with delegates their


USS Cairo: Crew Safety and Fleeting Efficiency

Photo courtesy of Carline Industries

Over that past 15 to 20 years there has been a revolution in U.S. ship docking tugs. Larger container ships and tankers made obsolete the conventional single and twin propeller tugs that could serve either line haul or ship docking functions


Kuwaiti Coast Guard Orders 29 Vessels

Photo: Tampa Yacht Manufacturing

The Kuwaiti Coast Guard ordered 29 new 44-foot fast coastal interceptor-class (FCI) vessels from Tampa Yacht Manufacturing LLC.   For the new builds, the Kuwaiti Coast Guard specified total drive solutions from Twin Disc, featuring Arneson ASD11 surface drives and Rolla propellers.  


Four New Tugs for the Port of Alexandria

Voith Water Tractor „Salam 6“ operating in the Suez Canal (Photo: Voith)

The Alexandria Port Authority has placed an order for four new Voith Water Tractors (VWT) to be built at different shipyards in Egypt. Two tugs with an engine power of 2 x 1,920 kW each will be propelled by two Voith Schneider Propellers VSP 28R5/210-2


Nakashima Propeller, ClassNK Hold Joint Seminar

Nakashima Propeller and ClassNK held a joint technical seminar in Hamburg on March 19.   Nakashima Propeller and ClassNK, from their respective roles in the industry, provide products and services to support ships through their lifecycle


New Player in the Rim Thruster Market

thruster.jpg

Rim-driven thruster technology has emerged and demonstrated potential for compact and super-silent maneuvering propulsion.   Silentdynamics customized rim-thruster-based propulsion solutions applications include tunnel thrusters, and Silentdynamics ERT thrusters can be configured to be


Detyens Wins $15.8m Ship Repair Contract

USNS Lewis and Clark (Photo: U.S. Navy Military Sealift Command)

Detyens Shipyards, Inc. has been awarded a $15,812,647 firm-fixed-price contract from the U. S. Navy’s Military Sealift Command for a 75-calendar day shipyard availability for the regular overhaul and drydocking of USNS Lewis and Clark (T-AKE 1).  


Next Gen Tankers Delivered to Concordia Maritime

Stena Image (Photo courtesy of Concordia Maritime)

Concordia Maritime takes delivery of the next generation of chemical and product tankers   Concordia Maritime’s first chemical and product tanker based on the IMOIIMAX concept, the Stena Image, was delivered from the Chinese shipyard GSI (Guangzhou Shipbuilding International) in


Push Boats: From Turkey to Brazil

PUSH_BOAT_SDP46.jpeg

The shallow draft market in South America continues to strengthen, powered by orders such as Hidrovias do Brasil S.A. 2013 deal for eight HB Pushboat ASUNCION-PYs, which represents a new generation of powerful Shallow Draft River Push Boat designed specifically for South America inland waterways


USCG Rescues Disabled Fishing Vessel

A 47-foot Motor Lifeboat crew from Coast Guard Station Gloucester, Mass., tows the 61-foot fishing vessel Angela Michelle to port, April 19, 2015.  (U.S. Coast Guard photo by Petty Officer 2nd Class Mark Robinson)

  A fishing crew is back on land today after a fouled anchor line stranded them about 115 miles east of Gloucester, Massachusetts, Saturday. Initially, the four-person crew aboard the 61-foot fishing vessel Angela Michelle contacted the Sector Boston Command Center when their line became


Port Klang Ensures Faster Turnaround for CMA CGM KERGUELEN

The CMA CGM KERGUELEN welcomed with a unique arrangement at the Port Klang Terminal

  The CMA CGM Group reported that during the CMA CGM KERGUELEN first call at the Port Klang Port Terminal in Malaysia, the terminal set up a unique arrangement for the vessel: no less than 12 cranes were simultaneously used to match the vessel's exceptional length (398 meters) and capacity


Twelve Cranes Unload Mega Box Ship

Photo courtesy of CMA CGM

The 398-meter-long containership CMA CGM Kerguelen made its first call at the Port Klang Port Terminal in Malaysia, arriving to a very unique arrangement, the CMA CGM Group announced.   No less than 12 cranes were used simultaneously to match the vessel's exceptional length and capacity (17


Great Lakes Shipyard Awarded Ferry Repair Contract

Photo courtesy of Great Lakes Shipyard

Great Lakes Shipyard has been awarded a drydocking contract for Miller Boat Line’s M/V Put-In-Bay.   The ferry was hauled out using the 770-ton capacity Marine Travelift at Great Lakes Shipyard. The repair contract includes drydocking, inspection and repairs


Hanjin’s Subic Shipyard Wins Bid for Six Boxship

Hanjin Heavy Industries & Construction’s (HHIC) Philippines-based Subic Shipyard Courtesy HHIC

  HANJIN Heavy Industries & Construction (HHIC)-Phil’s Subic Shipyard hit the jackpot bids. On April 20, the company said that it signed a deal to build six 11,000-TEU containerships for European and Asian shipping companies.


SCHOTTEL to Present Inland Offerings

Photos courtesy of SCHOTTEL

SCHOTTEL will present its expertise to the U.S. inland market at the upcoming Inland Marine Expo in St Louis, June 15-17, 2015: strong push boats in Brazil, big cargo vessels in Russia and comfortable river cruise vessels in Europe - recent projects prove the competence of German






 
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