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Botnica (Continued from page 97) engines which are lighter and much more flexible than alternative solutions." By employing a 92 percent efficient diesel electric system and housing the propulsion motors in the azi- pod units themselves, the significant weight, space and maintenance penalties associated with larger, slower speed engines, gearboxes and drive shaft sys- tems are eliminated. This multi-pack approach also means that the vessel has two, fully watertight and fully capable engine rooms which is a much safer and a much more balanced approach as well. Caterpillar won the contract against tough competition from a number of other engine manufacturers, none of whom however were recommending a multi-engine diesel electric system. According to Mr. Haijula, price was a significant factor, as well the fact that the FMA has had good experience in using Caterpillar engines on other pilot, passenger, cargo and safety vessels around Finland. The FMA has also received outstanding support service from Wihuri Oy Power Products, which is vital in a country which depends so heavily on its maritime industries. Circle 21 on Reader Service Card VESSEL FOCUS: CONTAINERSHIPS Sea-land: Darning To Ae Beat (I lis Own Drummer Leading containershipping company completes technologically challenging "shortening" of ships Sea-Land Service, Inc. has a reputation for innovation, a reputation which was recently proven in the quest to meet a com- petitive challenge through the ingenious modification of existing ships, coupled with a recently-completed newbuilding program. In the maritime industry, it is fairly com- monplace to make a ship bigger so that it may better serve a growing market. It is highly unusual to make one smaller for that same purpose. And it is even more unusual to do so at a time when the competition is addressing that same purpose by building ever bigger ships of ever-greater capacities. Nonetheless, one of the world's largest container carriers, Sea-Land Service, has done just that. It has met a competitive chal- lenge by taking three large ships and shrink- ing them. Length 317 ft. (96.7 m) Breadth, molded 78.7 ft. (24 m) Draft (icebreaker) 23.6 ft. (7.2 m) Draft (offshore) 27.8 ft. (8.5 m) DWT (icebreaker) 1,000 tons DWT (offshore) 2,850 tons Main engines Caterpillar 3512 Engine output 15MW Propulsion (2) 5 MW Azipod Speed open water 15 knots .6mice 8knot 1.2mice 4knots Bollard pull 105 tons Free deck area 1,000 sq.m. Deck crane 120 tons Classification DNV Steel plate Rautaruukki Compound plates Creusot-Loire Paints International Cathodic protection Savcor Deck and Service cranes Hydromega Anchor and Mooring winches, capstans Aquamaster Rauma Towing winch Aquamaster Rauma life and Rescue boats Fassmer Davits/Life and Rescue boats & rafts Davit International Life rafts Viking Watertight bulkhead doors Tebul Sliding fire doors Saajos Person lift MacGregor Proviant lift Norent Helideck Marine Aluminum Central vacuum cleaner system Protekno-Puzair ACAentilation Kojo Refrigeration machinery Bitzer Kitchen Fonsen WC Units Parma Metals Laundry equipment Miele Windows (general spaces) Dalmas Windows (bridges) TUT Rokenne 100 Bolnita Main Particulars A60 windows Teamtec Main generators ABB Azimuth thrusters Azipod Electric propulsion system ABB Emergency genset Caterpillar Purifier Units Alfa Laval Hot water boiler Aalborg Industri Centrifugal pump Iron Screw pumps Allweiler Plate heat exchangers APV Starting air compressors Sperre Working air compressors Atlas Copco C02 fire extinguishing system Heien-Larsen Sewage plant Format Vacuum WC system Evac Fresh water generator Alfa Laval Incinerator Teamtec Tunnel thrusters Brunvoll Stabilizer/anti-heeling Intering Electric switchboards ABB Palko SPS Kongsberg Simrad Frequency converters Hitzinger Uninterruptable power systems Exide Electronics Lightning transformers Muuntolaite Lighting fittings Glamox Navigation system Kongsberg Norcontrol Searchlights Norselight Navigation lights Aqua Signal Automatic telephone system Hedengren/Matra UHF Basestation systemMotorola/Hedengren Wireless telephone system Ascom Tateco Central antenna system Naval Fire and Gas detection Salwico Radar Kelvin Hughes/Norcontrol Compass Anschutz Speed log Consilium Marine Echo sounder Skipper DGPS Trimble Loran-C Furuno Whistles KockumSonics Radio communication system SP Radio Sat/Com system Nera/Fhrane & Throne The large ships were part of Sea-Land's 12-vessel Atlantic class. These were 4,354- TEU "Jumbo Econships" (known popularly as "Econships," shorthand for "economical operation"), originally built for U.S. Lines by Daewoo, and delivered in the mid-eighties. With a top service speed of just 18 knots, they proved uncompetitive in the eastbound around-the-world service for which they were built. USL went out of business in 1986. The ships were purchased by Sea-Land two years later and assigned to the North Atlantic trade. From the start, the ships were part of unusual strategies. "We did something oppo- site to what you would normally do: we designed a service to suit the ships," says Rod Vulovic, vice president, Ocean Transportation Services for Sea-Land. The ships became part of a vessel sharing agree- ment with P&O Nedlloyd. "We needed 19- knot ships, so we decided to operate the ships at a nine-meter draft to gain the extra knot," he recalls. This strategy worked well in all but one route. So Sea-Land began to consid- er alternate use for the three vessels in that service. At first, the ships were considered for a Pacific service involving a line-haul ves- sel of 3,000 TEU and smaller feeder ships. This changed in 1993, when the need for two classes of ships for distinct services devel- oped. The company determined that one ves- sel class would have a capacity of 3,600 TEU and a speed of 24 knots, the other a capacity of 2800 TEU and a speed of 21 knots. The company sought alternatives to two newbuilding programs. Here was an oppor- tunity to employ the Atlantic class vessels, provided the power could be boosted. More than 30 different proposals were considered. The one chosen was known as "cut and paste." MEETING PULSION < R -I P I? C P IE I. I. I QUICK DELIVERY OF... • S & S Custom Propellers • Class "S" CNC Propellers • Federal Propellers • Hy Torq Propellers z • Surface Piercing Propellers •Aquamet 17, 19,22 Shafting We Make 'Em Go. FASTER Two Complete Marine Machine Service Facilities...providing computer aided measuring prop program and new sizing analysis Maritime Reporter/Engineering News