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PROPULSION UPDATE Figure 1 Variation in NOx Emission Rates, 2 Slow Speed Engines • A A 1 i 9 • • Engine 1 • Engine 1 a Engine 2 Delivery In-service Delivery 60 % MCR Figure 2 Variation in NOx Emission Rates, 4 Medium Speed Engines • Engines 1-4, Trial 1 • Engines 1-4, Trial 2 60 % MCR Figure 1 can be readily employed and with the minimum of disruption. NOx Monitoring equipment must be simple, robust and reliable -but may still fail at a crucial moment. All NOx measurements are sub- ject to variation. Engines should be designed to have an adequate margin below the relevant NOx emission limit. The variability allowance must be included within the Monitoring option. 22nd CIMAC Congress in Denmark The 22nd CIMAC International Congress on Combustion Engines will be held this year in Copenhagen, Denmark from May 18-21. Three panel discussions will highlight the four major themes: The user's view of the requirements for diesel engine manufacturers, engine systems, emissions and the environmental challenge and Figure 2 VIKING SOFTLOOP FENDER When Push Comes to Shove, Have a Viking on Your Side • The softest, most forgiving ship assist fender on market Designed for greater energy absorption and gripping ability Ideal for tractor tugs bow, stern and side fenders 1 Side hip fenders for tug and barge units Pier cell fenders a division of Viking Marine Products, Inc. 1160 State Street • Perth Amboy, NJ 08861 USA 732-826-4552 • Fax 732-826-5533 http://www.vikingfender.com Circle 321 on Reader Service Card Smith The leader in deck hardware for 60 years QUALITY DECK HARDWARE Choose Smith Berger for the highest quality deck hardware for your offshore, towing, oceanographic, dredging, and workboat needs. FAIRLEADS • DECK SHEAVES CHAIN STOPPERS • FLAG BLOCKS TOW PINS • STERN ROLLERS • ENGINEERING EXPERIENCE FOR CUSTOM DESIGNS. For information, please contact: Smith Berger Marine, Inc. 516 S. Chicago St. Seattle, WA 98108 206/ 764-4650 FAX: 206/ 764-4653 Circle 303 on Reader Service Card 'I want an Oil Spill Crisis Management Center that can provide both training & handle real incidents." implementation feature Our products can be customized to your application. Contact us today to learn more about the crisis management/training solution that is right for you. April, 1998 Our Management Center has: • the world's leading technology in a unique package • training for scientists, crews & managers • GIS/Oracle data retrieval • network connections to Radar/FMSS cubicles • performance database • vessel & port database option • local input/participation in SHIP ANALYTICS INTERNATIONAL • 183 Providence-New London Turnpike • North Stonington, CT 06359 USA E Mail: www.shipanalytics.com • TEL: (860) 535-3092 • VMAIL: (860) 535-3924 • FAX: (860) 535-0560 Circle 299 on Reader Service Card SHIP ANALYTICS