First Order For Dolphin Propulsion System
Seven Seas Voyager, the new 50,000-gt cruise ship under construction by T. Mariotti at its Genoa yard for delivery to Radisson Seven Seas in 2003, will be among the first ships to be equipped with the new Dolphin podded propulsion system, a system which was jointly developed by STN ATLAS Marine Electronics and John Crane-Lips.
Podded propulsors of the system are designed to deliver 2x 7,000 kW at 170 rpm. Main features include integration of a powerful electric drive into a hydrodynamically optimized pod below ship, resulting in a directly-driven propeller. Extensive CFD analyses and model tank tests have led to the development of a pod shape with enhanced efficiency and maneuvering characteristics.
Dolphin has been developed for power ranges extending from 3 MW to more than 19 MW and is suitable for a wide variety of vessels designed for high speed and good maneuverability operation. With a continuous rotation angle of 360 degrees in the vertical axis, the pod ensure optimum maneuverability for commercial vessels as well as those engaged in offshore dynamic positioning.
The standard drive of the fixed-pitch propeller includes an air-cooled six-phase synchronous motor; gears, shaft systems, rudders and stern thrusters forming part of conventional electric drives are not required. The system's shaft is protected within its casing by a combination of face and lip seals.
In addition to the Dolphin system, the scope of delivery by STN ATLAS Marine Electronics and John Crane-Lips for Seven Seas Voyager includes a complete propulsion system with synchro-converters, control and joystick system, diesel alternators, and a highvoltage distribution assembly with propulsion and main transformers as well as bow thrusters.
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Other stories from April 2001 issue
Content
- The New Knowledge Brokers? page: 8
- Crowley Launches Refurbishment Of 25 Seagoing Tugs page: 9
- Boat-Park.com — The Virtual Trade Show That Never Sleeps page: 12
- LevelSeas Buys SeaLogistics page: 12
- Proposed Regulations Regarding Source of Income From Activities In Intl. Waters page: 14
- COMSAT Mobile Communications Working With U.S. Coast Guard To Save Lives At Sea page: 18
- ASNE Day 2001 To Feature Timely Technical Papers, Informative Exhibits page: 20
- Adsteam To Buy Howard Smith page: 22
- Bollinger To Construct Pair of Vessels For Seacor Marine page: 24
- Holland America's New Ship Points Toward New Visa page: 25
- Cruise + Ferry 2001 Preview page: 25
- Radiance of the Seas — A First Class Delivery page: 26
- Cruise Lines Equip Fleets With Emergency Smoke Hoods page: 27
- Blount Retires From ACCL; Names Daughter As Successor page: 28
- Help Protect Interiors With SS Sanparrel page: 31
- The FPU Market Is Primed To Produce page: 33
- CWWS Delivers 200 Separators To Tidewater page: 38
- A Leg Up on the Competition page: 40
- Seacor Continues Rational Fleet Expansion page: 44
- GLM Poised For A Strong 2001 page: 46
- Friede Goldman Halter Negotiates $100M Financing page: 48
- Clamp Supplier Dives Into Project page: 49
- Dockwise Performs Timely Delivery Of Shell's Brutus page: 50
- Bollinger Wins K-Sea DH Barge Contract page: 52
- Telenor To Acquire COMSAT page: 52
- First Order For Dolphin Propulsion System page: 54
- Stena Discovery Performance Improved With Enhanced Steering System page: 54
- Voith Adds To Its Innovative Range page: 58
- Wartsila: Smokeless by Common Rail page: 64
- Wartsila, Marioff To Cooperate On Emission Control Technolgy page: 65
- Technology, Image Top Inland Agenda page: 66
- Leading Societies Launch Sweeping Safety Initiatives page: 73
- IZAR Delivers For Stena page: 74
- Furuno's New NavNet Is Compact, Seamless page: 74
- Finland: Cradle of Marine High-Tech page: 75
