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Marine Propulsion Oil, Air and Water: Keys to Long Engine Life When they pulled a six-year-old Cummins KTA19 out of the 40 x 15-ft. single-screw tug River Star, it had 35,000 hours on it. This is the equivalent of running the boat for nearly 16 hours out of every 24 over the six years. The engine had earned its keep and the fleet's owner Kerry Moir had decided to replace it with a new 600 hp Cummins KTA19 M3. "When we got it up to the shop we turned it over, pulled the pan and checked the shaft bearings. We could have rebuilt the top end and put another 20,000 hours on that engine, " said Riverside Towing's port engineer Dave Petrunia. This is a credit to Rivermarine Towing's understanding of what is important for an engine's longevity. "I am meticulous with oil, air, and water," Petrunia explained, "With the oil I keep the changes under the 250 hour mark, that way there is no chance of getting busy and going over time." With the repower of the River Star completed Petrunia started in on the company's larger 51 x 20-ft. twin-screw 25 YEARS OF THRANE & THRANE = SAFER SEAS Hybrid Ferries Planned for Alcatraz Tours Two hybrid ferries will carry visitors to Alcatraz under a new 10-year contract between the National Park Service and Hornblower Cruises and Events. The ferry operator reportedly committed to build two new hybridelectric passenger vessels that maximize the use of solar and wind energy, with zero emissions at the wharf. The first will be built within two years, and the second by year five. The hybrid vessels in the winning proposal by Hornblower were designed by Solar Sailor and modeled on the Solar Sailor ferry in Sydney, Australia. Bluewater Network introduced the Solar Sailor concept to ferry planners on the Bay five years ago. The new ferries hold 600 passengers and operate at 12 to 15 knots. The vessels will be fitted with a large, rigid wing covered in solar panels that will capture sun and wind power. When conditions are right, the vessels will be able to sail back and forth. In extreme weather, the sail will automatically fold down flat above the deck like a roof. Much like a hybrid car, large batteries on board the vessels will store electricity generated by the diesel generators and collected by solar panels. The electricity then powers the electric motors. While loading and unloading passengers, the diesel engines will be turned off and run solely on electricity. The vessels can also be plugged into shorepower to regenerate the batteries. As needed, the vessels will operate with diesel generators burning low-sulfur diesel fuel and equipped with air pollution controls that cut emissions by 70 to 90 percent. September 2006 Keep your ship security up to code and easy to maintain with the Thrane & Thrane SAILOR SSAS Ship Security Alert System. Comprising the state-of-the art Inmarsat-C platform, the SAILOR TT-3000SSA mini-C GMDSS System is your stand-alone security solution. For current users of the SAILOR TT-3000E, we now offer a 4th generation of Inmarsat-C in a cutting edge SSAS add-on to help ensure safety on board, quickly and easily. The SSAS solution from Thrane & Thrane also provides full integration with the web based tracking solution LocPoint. This easy to use service is provided by Thrane & Thrane free of charge, and provides the user with a wide array of tracking and fleet management functions. Experience LocPoint live at the Thrane & Thrane stand at SMM 2006 where we celebrate 25 years of innovation and reliability from Thrane & Thrane. VISIT US AT SMM 2006, HALL 10 1ST FLOOR, STAND #261 Thrane & Thrane A/S · firstname.lastname@example.org · www.thrane.com 43