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Marine Propulsion Annual Trials Begin on Unique Maneuvering Aid The SEA-AHED — the merciful acronym for Simulation Env ironment and Advisory System for On-board Help, and Estimation of Maneuvering Performance During Design — was scheduled to be installed onboard P&O Princess Cruises' Golden Princess for trial this summer. The trial is a three year project funded by the European Commission Competitive and Sustainable Growth Program, which unfortunately does not have a snappy acronym. The purpose of SEA-AHED is:to allow a ship's maneuvering characteristics to be determined very early in the design process: to develop a nav aid displaying, in real time, a vessel's current position together with a future position, predicted or sim- ulated.. and to develop a maneuvering training aid which allows crews to replay previous maneuvers. For additional information, contact Rory Dovle at BMT. roryd@bmtech.co.uk Centa Leads the Way with Centax CX-L Centa Corp., Westmont, III. has seen considerable growth in the use of its CENTAX CX-L series torsional cou- plings for marine propulsion drivelines. The company's CX-L coupling uses a set of specially designed link arms between the rubber tor- s i o n a 1 element(s) and the output hub that allows for large axial and angular misalignments, thus making it a unique solution for applications where the engines and/or transmissions are on soft mounts or for applications where significant hull flex is present. Circle 183 on Reader Service Card Siemens Promotes Fuel Cell Power Siemens Industrial Solutions and Services Group (I&S) received an order from HDW Fuel Cell Systems GmbH (HFCS) to supply a transportable 160 kW fuel cell system for emission-free power generation on ships. The system is housed in a container, which allows it to be brought onboard for demonstra- tions and tests, and to be seamlessly connected to the ship's power supply. It is scheduled for delivery in spring 2005. Siemens will install the complete system in a 20-ft. transport container so that it can be made available for potential users for testing. In addition to four fuel cell modules manufactured by Siemens with a gross output of 40 kW each, the con- tainer accommodates all the process engineering and electrical engineering systems needed for operation, control and monitoring, as well as a converter, which adapts the electrical energy gen- erated so that it can be fed into the ship's power system. Circle 191 on Reader Service Card Unique RoPax Ferries Mitsubishi Heavy Industries was tapped by Shin Nihonkai Ferry Co. to build a pair of large, high-speed RoPax ferries, innovative concept vessels with a single-shaft system that is the combi- nation of contra rotating propellers (CRPs) and a pod drive unit. The 17,000-gtships are due for delivery next June. They will measure 736.5 x 85 ft. (224.5 x 26 m) and will have a maxi- mum speed of 31.5 knots. They will be outfitted with a steerable Azipod unit from ABB Azipod, installed in a contra- rotating mode aft of the mechanically September 2003 driven main propeller. The intent: the power of a twin screw installa- tion with far higher efficiency. Circle 190 on Reader Service Card Smart Pneumatic Level Sensor with Generic 4-20mA Output The Bubbler is an electro-pneumatic level trans- mitter that allows remote level measurement using a 4-20mA analog output. The lack of air pressure poses no operational problems, due to an auto- matic one-way valve which closes as soon as the pressure drops below 1 bar, this prevents back flow in the bubbling line towards the transmitter. Over pressure is also protected against by an automatic one-way valve. • It's the size of a grapefruit • Explosion proof housing • Accuracy .3% full scale • Automatic over-pressure valve • Automatic stop valve for air failure • Automatic cleaning of bubbling line • Connection for pressurized tanks • 2 pair 24 VDC and 4-20mA cable «Top or side mount Many Options » Call today W for more HML information! ELECTRONIC MARINE SYSTEMS, INC. 800 Ferndale Place Rahway, NJ 07065 732.382.4344 732.388.5111 fax emsmarcon@aol.com e-mail http://www.emsmarcon.com Circle 231 on Reader Service Card Circle 221 on Reader Service Card 33
