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S26MC CROSS SECTION ures for specific fuel oil consump- tion; low figures for specific lube oil consumption; secure operation on heavy fuel oil; high reliability; low maintenance costs; and low noise level. Tests on a prototype 6S26MC engine are scheduled to start in Copenhagen in October this year. Said to be the smallest two-stroke uniflow diesel engine of its kind, the S26MC is based on more than 50 years of experience in uniflow de- sign, and is backed by a worldwide service organization. The new 260-mm-bore engine shares the basic design philosophy of other models in MAN B&W Die- sel's market-leading MC Series, which now embraces eight bore sizes up to 900 mm. The overall range can now meet single engine output ap- plications from 950 to 64,320 bhp. For additional information and free literature on the new S26MC engine series, Circle 85 on Reader Service Card Ulstein Introduces New High-Lift Type Rudder Ulstein in Norway recently un- veiled a new high-lift rudder that combines the best features of vari- ous known rudder types and pro- vides higher lift at large rudder angles compared with conventional flap type rudders. The new rudder is said to provide an exceptionally good effect for vessels that require high rudder forces at low speeds such as tugboats, trawlers, anchor- handling vessels, etc. An important advantage com- pared with other high-lift rudders is that the Ulstein unit requires only the conventional 2 by 45-degree steering gear. The rudder gives im- proved rudder effect with low ener- gy losses, in particular during trawl- ing and at low speeds. At the same time, the transverse forces are re- duced for small rudder angles, thereby reducing the chasing at cruising speeds. The new Ulstein high-lift rudder is being marketed by Ulstein Trad- ing Ltd. A/S, with sales offices and agents worldwide. The Norwegian firm is represented in the U.S. by Ulstein Inc. of Kenner, La., and in October, 1986 Canada by Ulstein Maritime Ltd. of Burnaby, B.C. With this new high-lift rudder added to its product line, Ulstein is in the position to provide all the major equipment for the propulsion and maneuvering of a wide range of vessels. For further information on the new high-lift rudder, Circle 142 on Reader Service Card Navy Awards Sub Contract Worth $6.4-Million To Portsmouth Naval Yard Portsmouth Naval Shipyard, Portsmouth, N.H., is the successful offeror in a competitive test pro- gram between public and private sector shipyards for the Selected Restricted Availability (SRA) of USS City of Corpus Christi (SSN- 705). Portsmouth Naval Shipyard is being assigned the selected restric- ted availability on a firm-fixed-price basis. The target price for this effort is $6,382,087. Work will be per- formed in Portsmouth, and is ex- pected to be completed September 30, 1987. The Naval Sea Systems Command, Washington, D.C., is the requiring activity. ohnson ID U RAM AX Building Dependable Marine Products Right Here in the U.S.A. WA TER LUBRICA TED BEARINGS Sleeve, flanged and all-rubber demountable stave types in a wide range of sizes. Some of the finest ma rine products in the world are made right in the heartland of America. The depend- able Duramax Marine Products we manufacture in Ohio provide supe- rior performance to vessels through- out the world. And, our in-depth service program provides reliable and knowledgeable technical support. Plus, performance proven Duramax Marine products are readily available in a wide selection of styles and sizes. Best of all, at Duramax Marine, we stand behind the quality of our American made products. Circle 119 on Reader Service Card 19 DEMOUNTABLE KEEL COOLERS Spiral tube coolers of 90/10 cupro nickel for maximum heat transfer. Available in double or single banks STUFFING BOXES and STERN CASTINGS Wide range of types and sizes including inflat- able airseal ring type for packing changes without dry docking. RUBBER FENDERING SYSTEMS Various protective profiles for vessels and docks including three styles, of tow-knee pusher plates. / Call or write today for our Informative catalogs. See us at the Fish Boat Show Booths 31 3 & 315 /Middlefield. OH 44062 U.S.A Area Code: 216/632-1611 MADE division of The Johnson Rubber Company / Telex 21-2564JRCM UR / Cable: "DURAMAX" A Subsidiary ot Duramax Inc. / Dependable Products For Ships Throughout The World S.A
