Page 48: of Maritime Reporter Magazine (September 2001)

Aqualiner

Low Wash Ferry 130 passengers

Aremiti 4

Damen Fast Ferry 5012 445 passengers / 20 cars

Marine Propulsion Annual

SHIPYARDS

SHIPBUILDING AND SHIPBUILDING KITS FOR CONSTRUCTION IN THE USA

Industrieterrein Avelingen West 20 • P.O. Box 1 • 4200 AA Gorinchem/HOLLAND

Telephone: 011 31 183 639528 • Telefax: 011 31 183 637762

E-mail: [email protected] • Internet: www.damen-shipyards.com

Rolls-Royce Debuts New Thruster Range

Rolls-Royce has launched a new series of tunnel and azimuth thrusters to cover marine applications. Tunnel thrusters will be sold under the Kame- wa Ulstein name, and will cover pow- ers from 200 to 3,700 kW. Azimuth thrusters will carry the Ulstein Aqua- master name, and have ratings from 330 to 5,500 kW.

The new products are geared to streamline the burgeoning Rolls-

Royce stable of technologically advanced marine propulsion products, as previously various companies which are now part of the Rolls-Royce group competed against each other with thruster ranges which many times overlapped. The streamlining was expected given the company's aggres- sive acquisition of companies in the past few years, and take full advantage of the deep R&D resources the compa- ny offers in its quest to dominate the marine propulsion market.

Tunnel Thrusters

The new TT series Kamewa Ulstein tunnel thrusters are available in 11 sizes, covering the power range from 200 to 3,700 kW, and available in CP and FP propeller versions. All models are available with different hydrostatic heads to cater for either deep or shal- low draft vessels, and the manufactur- ing approach allows the company to be competitive on the specialized spec as well as the off-the-shelf markets.

Azimuth Thrusters

Similar design principles have been used in the new Ulstein Aquamaster azimuth thrusters, a line which includes nine frame sizes and covers the power range from 330 to 5,500 kW, with the option for either CP or FP propellers. The options in this range are large to accommodate a number of design applications, including units, which retract into the hull, are under- water mountable and containerized types, deck mounted units and pulling thrustrers.

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New Ferry V

Damen Fast Ferry 4010 400 passengers

Axial Fans Improve Engine Performance

By installing axial fans from Delta T Systems, owners can ventilate an engine room with a steady supply of air. The Delta T axial fans mount in the vent sys- tem that connects the engine room to outside air. It provides high airflow rates and low sound pressure levels. Manufactured for marine environments, it has a lightweight, flanged housing, as well as patented hubs and airfoil blades. The fans range in size from nine in. models that move 490 cu. ft. of air per minute to 36 in. units that move more than 45,000 cu. ft. per minute. The fan motors are available for single- or three-phase AC power at 50 to 60 Hx, and for 12- or 24- volt DC power.

Delta T was originally established in 1992 as Rolo International with the sole purpose of providing solutions to the age old problem of eliminating water and salt from the machinery

Delta T Systems engine room ventilation com- space. The Delta T name emerged in ponents were used on the high-speed catama- 1995 due to the demand from many ran Flying Cloud built by Derecktor Shipyards. clients for a complete ventilation and engineering package. Today, the com- pany is dedicated to providing clients with a low cost solution to machinery space ventilation problems. The company provides complete mechanical and electrical engineering with full naval architectural support for the design of any marine machinery space ventilation system, from inlet to outlet.

To date the company has more than 1,000 marine applications, ranging from small pleasure craft to oil field crew and supply boats to U.S. Coast Guard patrol vessels and large motor yachts.

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