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Waterjets represent the most successful and efficient means of propulsion for high-speed applications (Photo: Wärtsilä)

Wärtsilä Solutions for Efficient Propulsion

  (FINLAND, 3/14/2011)

The advantages of waterjets are not only that they produce higher efficiency, but that they also result in lower vessel resistance due to the absence of underwater appendages, such as shafts, rudders and shaft struts. The absence of any parts below the waterline also makes waterjets an ideal solution for shallow water operation.

Wartsila waterjet SR-series

Wärtsilä (Public, NASDAQ:OMX) offers a variety of waterjet propulsion solutions. The range is based upon both axial and non-axial pump designs.

• The axial pump design is the optimum solution for vessel design speeds of up to 55 knots. It delivers the best power to weight ratio, and the smallest transom mounting flange dimensions available on the market.

  • Wärtsilä’s successful axial pump design is available in a pre-assembled unit for smaller jet units of up to approximately 4500 kW. It is designed to suit the needs of smaller boat builders. The inlet duct is included in the Wärtsilä kit and the unit is delivered on a skid with all auxiliary systems pre-mounted.
  • The larger jets beyond 4500 kW manufactured today, include 26,000 kW installed power per jet. Waterjets based on Wärtsilä’s axial pump design are installed in many key applications, such as the US forces’ Joint High Speed Vessel (JHSV) programme, and Littoral Combat Ship (LCS) programme.

• The E-series waterjets are based on a non-axial pump design. This jet design serves applications that require extremely high power densities, notably for ship design speeds of up to 70 knots or more.

The midsize range of Wärtsilä waterjet solutions features convenient ‘plug & play’ installation that simplifies the shipyard work. This series features inboard hydraulics, as standard, for ease of maintenance and better economic and environmental performance.

Wartsila pre-assembled SRF waterjet packages

About Wärtsilä Corporation

Wärtsilä Corporation is a global leader in complete lifecycle power solutions for the marine and energy markets. By emphasising technological innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers.

In 2010, Wärtsilä's net sales totalled EUR 4.6 billion with 17,500 employees. The company has operations in 160 locations in 70 countries around the world.

Source: Wärtsilä Corporation

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Margaret E.L. Stacey
Editor Companies and Products
[email protected]
www.fis.com


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Address: John Stenbergin ranta 2 - P.O. Box 196
City: Helsinki
State/ZIP: (FI-00531)
Country: Finland
Phone: +358 10 709 0000
Fax: +358 10 709 5700
E-Mail: [email protected]
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