Seatorque Boost for Brazil’s Biggest Superyacht

By Maritime Reporter & Engineering News
Monday, December 23, 2013

Brazilian superyacht builder MCP Yachts credited Seatorque Control Systems for contributing to the outstanding performance of its latest launch – the Hemisphere 140 Raffaella II. Incorporating Seatorque’s enclosed drive shaft system, the 43m aluminum vessel, powered by twin Caterpillar C32 1825 HP engines, achieved a top cruising speed of 22 knots during sea trials with an 85% load and 167 metric tons displacement, said MCP president Manoel Chaves. The vessel features a pair M3-400 single-piece Seatorque shaft systems, each 22 ft. long, accommodating the vessel’s four-inch diameter shafts.
“The vessel’s light weight, propeller design and shaft system all add together to make a huge difference,” said Chavez. “In all my years on the water, I have never witnessed a vessel this size with a comparable power package to cruise at this speed. Thanks to Seatorque’s enclosed shaft system, the vessel achieved maximum horsepower, experienced zero shaft noise and vibration, and produced very little wake.”
Launched in July, Raffaella II is the largest yacht built in Brazil to date and reportedly the largest aluminum yacht ever built in South America. The vessel was designed by MCP in collaboration with Vripack and built at the MCP shipyard in Guarujá . It is the third vessel built by MCP Yachts to include the Seatorque Enclosed Shaft System.
According to Seatorque executive vice president Jana Stolper, the Seatorque Enclosed Shaft System is growing in popularity among superyacht builders, as evidenced by the 2012 installation on the highly-acclaimed McConaghy Yachts Adastra, designed by John Shuttleworth. This futuristic 140-foot trimaran, powered by a single Caterpillar 1,000 HP C18 engine, features an Seatorque ST-300, 32-foot, one-piece enclosed shaft system.
The Seatorque Enclosed Shaft System is a self-contained, oil filled, shaft and thrust bearing assembly designed for yachts of all sizes. The system is supplied as a single unit from the propeller end to the engine input coupling accommodating any length shaft and diameters up to seven inches. Operating as a self-contained unit, the Seatorque system allows propeller thrust to be fielded by internal bearings and delivered through the shaft’s mounting system supported by the structure of the vessel, rather than the vessel’s engines and isolators. This reduces vibration and noise and increase the life expectancy of the engines and transmission mounts. The Seatorque system connects the shaft to the engine using flexible universal joint assemblies. This eliminates leaking stuffing boxes, seals, cutlass bearings and associated shaft wear. The use of universal joint assemblies also eliminates damaging engine-to-shaft misalignment and reduces installation and alignment time by more than half. The elimination of cutlass bearings and stuffing boxes results in an average eight percent increase in horsepower, allowing for greater fuel economy and range. In addition, water flow is undisturbed by the non-rotating casing of the shaft assembly, allowing clean water flow to the propeller. This translates into an increase of thrust arc around the propeller, contributing to the efficiency of horsepower delivery. “The Seatorque system replaces the traditional multiple-component shaft system with a single piece of equipment that is simple to install and improves the performance and efficiency of any vessel, while greatly reducing shaft noise and vibration,” said Stolper. “These are very important benefits for yacht owners, especially those accustomed to long-range travel.”
www.seatorque.com
 

The MCP Hemisphere 140 Raffaella II is the largest yacht built in Brazil to date and the largest aluminum yacht ever constructed in South America. Powered by twin Caterpillar C32 1825 HP engines, Raffaella II achieved a top cruising speed of 22 knots during sea trials producing a minimal wake. The Seatorque Enclosed Shaft System is a self-contained, oil-filled shaft and thrust bearing assembly designed to increase horsepower, fuel economy and engine life while minimizing shaft noise and vibration. The system is supplied as a single unit from the propeller end to the engine input coupling accommodating any length shaft and diameters up to seven inches.
 

(As published in the November 2013 edition of Maritime Reporter & Engineering News - www.marinelink.com)

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Nordic Wins with Noble

Nordic Maritime, a leading offshore service operator, today announced a five year time charter for its DP2 IMR Subsea vessel, Mokul Nordic, which has been awarded by Noble Energy,

Foster Wheeler to Upgrade ExxonMobil's Antwerp Refinery

Foster Wheeler AG announced today that a subsidiary of its Global Engineering and Construction Group has been awarded an engineering, procurement, and construction

Pemex Suspends Eviction of Workers in Campeche

Due to the behavior shown by the low pressure system in the Gulf of Mexico, whose career was diverted in the last hours, the Technical Analysis Group Emergency

Marine Power

John Deere Expands Tier 3 Engine Line

John Deere Power Systems (JDPS) has introduced new propulsion ratings to its EPAMarine Tier 3 engine offerings. The new PowerTech 4045TFM85 propulsion ratings expand

Caterpillar: Q3 Results Show Improvement

Caterpillar Inc. today announced its third-quarter results, in which it reported profit per share of $1.63 for the third quarter of 2014, an increase from third-quarter 2013 profit per share of $1.

ABB: Remote Monitoring Link to Fuel Efficiency

Anticipating the maintenance of equipment on board ships in order to increase fuel efficiency could be a “real game changer in the future,” said Andreas Zito, chief technical officer of the V.

Marine Equipment

John Deere Expands Tier 3 Engine Line

John Deere Power Systems (JDPS) has introduced new propulsion ratings to its EPAMarine Tier 3 engine offerings. The new PowerTech 4045TFM85 propulsion ratings expand

Caterpillar: Q3 Results Show Improvement

Caterpillar Inc. today announced its third-quarter results, in which it reported profit per share of $1.63 for the third quarter of 2014, an increase from third-quarter 2013 profit per share of $1.

Interferry Applauds IMO Consideration of BWTS Exemption

Interferry has praised a decision made at last week’s meeting of the IMO Marine Environment Protection Committee (MEPC) that could exempt certain ferry operators

Megayachts

Gulf Craft to Invest $100m in Dubai Shipyard

Company plans to invest $100 million over the next five years in the development of a new shipyard in Dubai Maritime City to build a global luxury yachts manufacturing

Vessels

Tuco Debuts New Wind Farm Service Boat

Less than a week before the Offshore Energy 2014 Exhibition and Conference in Amsterdam the coming week, Tuco Marine disclosed the newest vessel in the ProZero series of Fast Rescue Boats,

Bright Outlook for BWM Convention

The Danish Maritime Authority informed that the Ballast Water Management Convention is now one step closer to ratification following last week’s meeting of United

Chief of Naval Personnel Visits Naval Special Warfare

Chief of Naval Personnel (CNP) Vice Adm. Bill Moran visited Naval Special Warfare (NSW) Sailors during an all hands call on Joint Expeditionary Base Little Creek-Fort Story, Oct.

Yachts

Pink Lashings Raise Money for Breast Cancer Research

As the first Peters & May Pink Lashings shipment leaves Palma for Fort Lauderdale, the global marine transport company is calling all yacht owners to support its campaign to help raise £25,

Ocean Training Launches Blended Learning Course

Major revisions to the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (The STCW Convention) came into force in 2012.

The Hydroptere Flies with Finesse

The hydrofoil trimaran Hydroptere will try for another nautical record with support from biotechnology leader Finesse Solutions After a year resting in Long Beach,

 
 
Maritime Security Maritime Standards Naval Architecture Navigation Offshore Oil Pod Propulsion Port Authority Salvage Ship Repair Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2422 sec (4 req/sec)