Page 33: of Maritime Reporter Magazine (December 1991)

New Line Of Kinetic Converters

From Omnithruster

For Thruster Applications

Omnithruster has designed and developed a new series of kinetic converters (those devices associated with its marine maneuvering de- vices that convert mechanical en- ergy to hydraulic fluid energy).

This new series of devices has been designed from the ground up to exhibit special characteristics nec- essary to develop maximum thrust for a given horsepower input to maxi- mize efficiency and performance in marine jet-powered thrusters and propulsion systems.

Some of the features embodied in the new Gamma I design are: stain- less steel specially finished impel- lers to give high efficiency and low cavitation parameters; extra strength welded metal casings and diffuser sections; optional stainless steel wearing rings and the impeller seats; easily-replaceable impellers by means of two-part intake sec- tions.

The machines are so designed that the operating characteristics enable a soft start with an AC motor with minimum in rush current demand.

Especially applied finish is used on the surface in contact with seawa- ter; utilized in vessels from small workboats and tugboats with 75 horsepower installations to large displacement vessels, naval, cruise ships, containerships, and tanker installations with up to 3,000 and 4,000 horsepower. The units also use newly designed control systems.

Omnithruster RPV 575-A Gamma series rated at 250 hp DC motor drive, Canadian Coast Guard,

Navaids vessel Provo Wallis.

These new Gamma series sys- tems are being manufactured from

American-made materials at the

Omnithruster facility in Santa Fe

Springs, Los Angeles County, Calif.

For more information,

Circle 31 on Reader Service Card

GE General Services

Awarded Contract Worth $8.4 Million By Navy

GE Government Services, Inc.,

General Electric Co., Cherry Hill,

N.J., was awarded an $8.4 million cost-plus-fixed-fee Navy contract. $140.6 Million Contract

Signed For Multipurpose

Icebreaker For Finland

The Hollming Oy-Rauma Yards

Oy consortium recently signed a con- tract to build a multipurpose ice- breaker for Finnish National Board of Navigation. The vessel is to be delivered in March 1993.

The value of the order, including the cost of financing, is around FIM 580 million (about $140.65 million).

In addition to icebreaking, this new generation icebreaker is in- tended for a range of summer duties in offshore oil and gas fields. The consortium will design and build the vessel using a basic concept de- veloped by the Finnish National

Board of Navigation and ILS Engi- neering Consultants. The hull con- cept is designed for icebreaking, yet at the same time will provide the seagoing characteristics of an off- shore vessel. The result is an ocean- going icebreaker.

One important feature of the multipurpose icebreaker is its large open afterdeck, which can be fitted

Finneran Appointed

President Of CIRM

Thomas J. Finneran, executive vice president of Mackay Communi- cations, In.c, has been appointed president of The Comite Interna- tional Radio Maritime (CIRM).

CIRM ia a private organization based in London and composed of leading international marine equip- with various types of equipment for operations during summer. The afterdeck is strengthened to carry equipment for laying and repairing flexible cables and for handling an- chors and various cargoes.

The vessel will have a length over- all of about 337.3 feet, a beam of 85.3 feet and a height from side to top deck of 41 feet. The design draft will be approximately 22.9 feet in winter work on the Baltic and 27.5 feet in summer offshore operations. The vessel's deadweight will be 1,700 tons in winter and 4,500 tons in summer.

The propulsion system will be diesel-electric, featuring two

Aquamaster-Rauma Oy stern pro- peller units, shaft power 2x7.5 MW.

The Aquamaster system will develop a bollard pull of 200 tons and pro- vide the vessel with excellent steer- ing characteristics both in ice and in open water. For offshore work the vessel will be fitted with three trans- verse bow thrusters and a dynamic positioning system.

For free literature on the facili- ties and capabilities of Hollming Oy-

Rauma Yards Oy,

Circle 12 on Reader Service Card ment manufacturers. The bylaws of

CIRM preclude any government agency from being a member, but allow their participation in CIRM meetings and conventions of perti- nent international organizations including IMO where they assist in avoiding the adoption of regulations that are technically impractical.

CIRM meets twice a year, usually in

Europe, and holds working group meetings in London.

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Circle 230 on Reader Service Card

December, 1991

Circle 222 on Reader Service Card 35 •ELECTRICAL SHIPBOARD CABLES

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