Seatorque Boosts Brazilian Superyacht Performance

MarineLink.com
Thursday, October 17, 2013
Designed for transoceanic voyages, 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.

Brazilian superyacht builder MCP Yachts has credited Seatorque Control Systems for contributing to the outstanding performance of its latest launch – the Hemisphere 140 Raffaella II. Incorporating Seatorque’s unique enclosed drive shaft system, the 43-meter aluminum vessel, powered by twin Caterpillar C32 1825 HP engines, achieved a top cruising speed of 22 knots during sea trials with an 85 percent load and 167 metric tons displacement, reported MCP president Manoel Chaves. The vessel features a pair M3-400 single-piece Seatorque shaft systems, each 22 feet in length, 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 the largest aluminum yacht ever constructed 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.”

seatorque.com
 

  •  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.

    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.

    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.

Maritime Reporter January 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

MSC Sinfonia Upgradation at Fincantieri Shipyard

Extension operations on MSC Sinfonia, the second out of four MSC cruise ships to undergo the Renaissance Programme of enhancements, have begunin the past days at Fincantieri shipyard in Palermo.

Irving Celebrates Canadian AOPS Build Contract

Government of Canada & Irving Shipbuilding mark signing of $2.3 billion AOPS build contract; 3,600 Jobs across Canada generated from Irving’s NSPS commitments to

Maran Orders 4 LNGCs from DSME

Korean shipbuilder Daewoo Shipbuilding & Marine Engineering (DSME) will build four large Liquefied Natural Gas Carriers (LNGC) for Maran Gas.   The four LNGCs

Marine Power

Naval Air Forces Holds Change of Command

Commander, Naval Air Forces (CNAF) held a change of command ceremony aboard the aircraft carrier USS John C. Stennis (CVN 74) at Naval Air Station North Island Jan.

Xunlong Shenzhen Orders Dutch-designed Ferry

CoCo Yachts B.V. inks contract with Xunlong Shenzhen Ferry Company for one Coastal Cruiser 300 Xunlong Shenzhen Ferry Company has ordered a Coastal Cruiser 300 ferry from CoCo Yachts,

Taiwan Naval Fleet Adds Home-Grown Vessel

Taiwanese Navy formally took delivery Friday of a new locally designed supply vessel that it said will help enhance Taiwan's maritime combat capabilities.   In

News

Technip Certified to EDGE Standard

Technip and EDGE Certified Foundation announce today that Technip in Brazil, in France and in Italy, including flexible pipe manufacturing plants in Brazil and France and Group’s headquarters,

USS Cole Conducts Change of Command

The Arleigh Burke-class guided-missile destroyer USS Cole (DDG 67) conducted a change of command ceremony during a scheduled port visit in Piraeus, Greece, Jan.

Tanzania's Energy Minister Resigns

Tanzania's Energy and Minerals Minister Sospeter Muhongo resigned on Saturday amid a graft scandal that has rocked the gas-rich country and led Western donors to delay aid,

Yachts

US Boating On High Speed Recovery

Nearly 89 million Americans went boating last year, one of the largest boating participation figures on record. And the boat sales last year increased to $37 billion,

Seakeeper Poised for Growth in 2015

Seakeeper reported record growth in 2014, noting that it is poised to continue the momentum through 2015 Shipments of gyros increased 46% over 2013 as more

Reopening of the Caravel La Niña III

The delivery ceremony and reopening of the Caravel La Niña III, faithful replica of the ship of Columbus, the Caravel “La Niña III“ was held yesterday in the city of Las Palmas.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Navigation Offshore Oil Pod Propulsion Ship Repair Shipbuilding / Vessel Construction Sonar
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: 0.2910 sec (3 req/sec)