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The 44,300-grt, 12-passenger deck Nordic Empress has an overall length of 692 feet, length between perpendiculars of 673 feet, 100-foot beam. Propulsion power is supplied by two 12-cylinder V configuration Wartsila Vasa 32 and two eight- cylinder Wartsila Vasa 32 main en- gines. The geared diesels drive twin controllable-pitch propellers at 105 rpm. Auxiliary power is generated by three Wartsila Vasa 8R32 diesel generator sets, producing a total of 9,300 kw. Alfa Laval S.A., Les Clayes Sous Bois, France, supplied nine separa- tors mounted on modules with pro- gram units, S&T heaters, with sludge tanks, three boosters for ME and AE, and 11 PHE. SILJA SERENADE Cruise Ferry MASA-Yards The Turku shipyard of Finnish builder Masa-Yards recently deliv- ered the cruise ferry Silja Serenade to Silja Line. When she goes into service between Helsinki and Stock- holm, the Silja Serenade will mark a MARINER'S GUIDE TO GPS No question about it: GPS lets you fix your position more precisely than any other technology. Unfortunately, the way most GPS sys- tems fit your needs has been considerably less precise. That's because most companies only give you one model to choose from. But at Trimble, we've always thought your naviga- tion system should fit your bridge, your work and your lifestyle. That's why we offer GPS in eight very dif- ferent systems. Here's how to decide which one's right for you: Charting If you want the ulti- mate in high-tech navigation, our NavGraphic IP is the most sophis- ticated GPS Interfacing Both the NavGraphic and the NavTrac have extensive interfacing capability, but if you need a rugged system to act as the coordinating link of a fully-integrated nav station, the 10X™is the perfect choice-especially in large installations where distributing control is important. The 10X processing unit can handle two control heads, one for the nav station and one on deck. receiver com- mercially available. Integrating CD-ROM, LORAN, GPS, and micro- computer technologies, it plots a mov- ing image of your boat right on a real NOAA chart. It's the most direct navigation device ever developed. Ease of Use If you don't need charting, but like the way graphics simplify navigation, the NavTrac™ GPS gives you a high-resolution screen in a smaller, more economical package. Its unique steering dis- play shows you a perspective view of your boat's progress. And makes navigation as easy as driving down a road. Portability If you've got more than one boat, or if your travels will take you over land or into the air, then you need a system you can carry. The TransPak™ puts a com- plete three-channel GPS receiver and antenna into 'a package the size of a pair of binoculars. Splash-proof, mud-proof, shock-proof, this rugged little unit will go anywhere you do. And our new TransPak IT" gives you the same portability with more waypoint storage and an I/O port. GPS Sensors If you've already got a nav- igation system you're familiar with, you can upgrade to GPS in one quick step. Our Acutis""GPS is a complete 3-channel receiver and antenna integrated into a ruggedized module that's mounted just like an antenna. If your LORAN, chart- plotter, or radar accepts NMEA-0183, GPS is as easy as connecting a cable. For even greater pre- cision, we also offer a Six-Channel GPS Sensor that accepts differential corrections and gives you four I/O channels. H Differential For scientific and industrial applications, our 4000Reference LocatorTl" is the industry-standard differential base station. It transmits differential corrections to roving receivers, letting them fix their positions to accuracies of a few meters. So you can see, at Trimble we offer more than just high technology, we offer you a choice. Maybe that's why our systems are being used on every- thing from oil exploration ships to luxury yachts, from freighters to fishing boats. If you'd like to know more, just call or write for our Complete Mariner's Guide to Trimble GPS. And we'll show you why Trimble GPS is the most precise navigation system—in more ways than one. Circle 248 on Reader Service Card TrimbleNavigation The Leader in GPS Technology R>r more information please call or write our Marine Division: RO. Bo* 3642, Sunnyvale, CA 94088-3642 1-800-TRIMBLE or 800-221-3001 in California FAX 408-737-6057 SILJA SERENADE Equipment List Main engine .Wartsila Vasa Auxiliary diesel . . . Wartsila Reduction gear Renk-Tacke Clutch . Renk-Tacke CP Propeller . . . KaMeWa Shaft & stern tube bearings & shaft seals Waukesha-Lips Electric motors & diesel alternator . . . . ABB Emer. diesel . . Caterpillar Emer. alternator . . . Stamford Autopilot, radar, speed indicator & echo sounder Atlas Direction finder . . . C. Plath Freshwater generator . . . Nirex A/C refrig. plant . . Stal-Laval A/C, ventilation & fans for cargo & engine spaces Flakt Spot cooling units .... Carrier Screw pumps Imo Oil separators . . .Alfa-Laval Side thrusters . . . KaMeWa Fin stabilizers Blohm & Voss Side thruster motor . . . . ABB Slides .... Viking Lube oils Shell Paint . International Cathodic protection Wilson-Walton Int'l new era in the ferry traffic in the Baltic. Masa-Yards and Silja Line have been actively developing the "Baltic Ferry Concept" since the late fifties and early sixties. The 665-1/2-foot Silja Serenade, although it incorpo- rates many of the design achieve- ments of the past, is unique because of the Silja Promenade. This "main street" is a huge atrium on her main deck, with a length of 470 feet, width of 27 feet and height of five decks. The promenade is accented by skylights atop and a glass wall at the aft end of the ship, those provid- ing passengers with a view of both the sea and sky. Restaurants, shops, and other recreational and enter- tainment facilities are accessible from the promenade. In addition, two accommodation blocks are situated on each side of the promenade, with cabins facing either the sea or the main street. The Silja Serenade will have a gross tonnage of 58,376 tons, breadth of 103 feet, and design draft of about 22 feet. She has a passenger capacity of 2,500 in 952 cabins. Ad- ditionally, the Silja Serenade can also accommodate 450 cars or 60 trucks. SPIRIT OF BOSTON Dinner/Excursion Boat Blount Marine In the first quarter of 1990, War- ren, Rhode Island-based shipbuild- er Blount Marine Corporation deliv- ered the dinner/excursion boat M/V Spirit of Boston to Cruise Interna- tional. The Spirit was the first boat launched from Blount Marine's new shipway. Built for Holiday Cruise II, a sub- sidiary of Cruise International headquartered in Norfolk, Va., the 600-passenger Spirit of Boston op- erates in Boston Harbor. At her launching, she was called "the finest (one) of her kind," by owner Rich- ard D. O'Leary, president of Cruise International. (continued) 39
