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turbocharger for higher loads, has been developed for the PA6 engine. This concept improves the engine performance at low loads concern- ing the fuel consumption, smoke emission, fouling resistance and transient performances. The 12 PA6 V 280 STC engine was chosen by the French Navy for the CODAD propulsion of the new "La Fayette" class frigates and more recently, the 16 PA6 V 280 STC was selected by the Royal Navy of Oman for its new class corvettes built by VosperThornycroft. For more infor- mation on S.E.M.T. Pielstick, Circle 73 on Reader Service Card Stewart & Stevenson Stewart & Stevenson Services, Inc., with branches in Harvey, La., and Houston, Texas, is one of the world's largest distributors of De- troit Diesel and General Motors- EMD engines from 50- to 4,300-hp. With a normal inventory of hun- dreds of diesel engines and genera- tors, a staff of experienced mechani- cal, electrical, and marine engineers, along with 24-hour worldwide parts and service, Stewart & Stevenson offers an excellent support network to its customers. Full service branches, two remanufacturing plants, and over 200 dealers are ready to provide full service to customers, from financing a vessel to training and technical support. Stewart & Stevenson can provide custom-engineered power systems for all marine applications. For free literature detailing the services, as well as the complete line of diesels supplied by Stewart & Stevenson, Circle 103 on Reader Service Card Volvo Penta Volvo Penta offers a broad range of diesel sterndrives featuring leg- endary durability, dependability and reliability. From the smallest 115 propshaft hp 4-cylinder model AD31/Duoprop to the exciting new 216 propshaft hp supercharged KAD42/Duoprop, only Volvo Penta commands the sea with such a wide range of diesel sterndrive products. Volvo Penta's 4-cylinder AD31/Duoprop and 6-cylinder AD41/ Duoprop feature a turbocharger, aftercooler and state-of-the-art com- bustion technology to deliver opti- mum power. The most recent entry into Volvo Penta's diesel range is the already popular KAD42/ Duoprop, which incorporates a su- percharger, turbocharger and aftercooler for performance charac- teristics similar to gas V-8, but with the exceptional fuel economy and durability of a diesel. The single prop sterndrive from Volvo Penta incorporates innova- tive ideas and uses an 18-step paint- ing process for maximum corrosion protection. New for Model Year 1994, Volvo Penta is offering a sport July, 1993 performance two propeller drive, the DPX. This new drive, with diesel power, pushes boats into the mid 50 mph range and offers all the ben- efits of Duoprop with a more hydro- dynamic design. The DPX also features a stan- dard external hydraulic steering system for precision control at all speeds. All Volvo Penta diesel sterndrives have been successfully employed in the commercial sector in patrol boats, fishing vessels and pleasurecraft up to 50 feet in single, twin and triple installations. For more information on Volvo Penta, Circle 74 on Reader Service Card Wartsila Diesel The Wartsila Diesel Group de- signs and manufactures medium- and high-speed diesel engines. With thousands of diesel engines delivered to over 50 countries, Wartsila Diesel has wide experience in both marine and land-based in- stallations. In the marine sector, Wartsila Diesel engines have a solid record of successful operation as both main engines and auxiliaries. The range of applications varies from passenger ferries, offshore drilling rigs, ice-breakers and tankers to fish- ing vessels. (Continued on page 28) Original GEMS DIPSTICK Liquid Level Indicators I Ideal for Closed Loading I Non-Electric I Lengths to 15 feet I Backed by 35 years of experience Completely Sealed - Color Coded "Stick" Highly Visible Stainless Cap Seals Unit For Environmental Protection Rugged, Stainless Steel Construction Call Toil-Free for more information 800-321-60705 Imo Industries Inc. Gems Sensors Division One Cowles Road Plainville, CT 06062 203-747-3000 FAX: 203-747-4244 T021 Circle 228 on Reader Service Card • We not only supply chains... what's more: we can also do the connecting job! In stock we keep more than 30 km of chain in standard lenghts of 27,5 m.^ Diametres: 17,5up to 120 mm. In special quality steel (Grade 2) or extra special quality (Grade 3). Further we can do the connecting job | with our own crew, j For further information about our activities and service, please contact: Postall address: P.O.box 29102, 3001 GC Rotterdam/Holland Main office: 45, Stationsplein, Phone (0)10-4331277, Fax (0)10-4130304, Telex 22496 M Willem Pot anchors • chains • lifeboats • deckmachinerv • service Circle 265 on Reader Service Card the owners of these vessels know, it's time you knew., FERNSTRUM ENGINEERED KEEL COOLING "The FERNSTRUM MlOXSOOLIi^i® is the simplest and most dependable form of fresh water cooling available." Ask any of our thousands of customers; they'll say the same thing. You can't find a better fresh water cooling system anywhere. Call us... we'll let you know which of our over 8000 different Gridcoolers is right for you. OVER 40 YEARS EXPERIENCE IN KEEL COOLING CHECK THESE UNIQUE QUALITIES ONLY FOUND IN THE GRIDCOOLER: Completely assembled and factory tested to assure reliability. No complicated, time consuming assembly before installation. Silver brazed and welded joints form a rugged keel cooler, no slip joints or "O" rings to leak. Heavy guage 90/10 copper-nickel or 5000 series aluminum rectangular tube, structurally stronger with more cooling surface, and twice the wall thickness of other package kit type keel coolers with round tube. Custom designed to meet owner's operating conditions and the engine manufacturer's exact cooling requirements. The most compact form of keel cooling, can be recessed for a flush with hull installation. R. W. Fernstrum & Company 1716 11 th Avenue • P. O. Box 97 Menominee, Ml 49858 Phone: (906) 863-5553 Fax: (906) 863-5634 Circle 229 on Reader Service Card 27
