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Reliable information is vital to any marine operation. Harris' field-proven RF-2331 channelized ARQ system assures that the data you depend on will flow smoothly The RF-2331 is an advanced synthesized (transmitter/receiver) automatic error cor- recting HF radio teletypewriter system, designed for easy, channelized marine telex and data operation Output power is 125 watts for voice and ARQ operation. A unique high-speed switch allows operation from a single antenna for transmitting and receiving, eliminating on board self-interference problems. For fully automatic operation, an optional channel scan control can be added. Ulstein Maritime Reports On Z-Drive Success —Brochure Available— December on the dredge Newport. These include the latest steering and clutch systems. Also, Ulstein Maritime recently commissioned two 2,000-hp, 360-degree steerable Z-Drive propulsion systems on the tug Winslow C. Kelsey, constructed at Eastern Marine in Florida for the Electric Boat Division of General Dynamics in Connecticut. The U.S. Navy continues to be a major customer, a 1,200-hp D.C.- driven thruster was commissioned on the MSC Observation Island, and six 500-hp diesel drive deck- mounted unit packages are on order for propulsion of U.S. Navy crane barges. The Strut Drive non-steerable, right-angled drive unit for high- speed vessels with power up to 650 hp, under development for the last three years, is receiving acceptance for crew and pilot boats, but is being more widely applied in the large luxury yacht market due to its unique features. The latest installa- tion is a high-speed passenger vessel running from North Vancouver to the Expo 86 site. Sparkman and Stephens, the world-famous yacht designers, have specified the MC- 500 Strut Drive in the new Stevens Custom 58, of which two vessels are on order. The company reports it has a strong team of design engineers to ensure that Ulstein Maritime keeps in the forefront of technology, both for Z-Drives and its control sys- tems. Ulstein Maritime has also manu- factured major portions of the Ul- stein controllable-pitch propeller systems on a number of projects, including two 1,500-hp systems for the retrofit of the Canadian Coast Guard vessel Narwhal being con- structed in Halifax. Controllable- pitch tunnel thrusters were commis- sioned on the Canadian Coast Guard vessel Samuel Risley, and the Department of Fisheries and Oceans vessel Leonard J. Cowley. The first of six Ulstein Maritime- designed fixed-pitch thrusters for Canadian Coast Guard 1100 vessels was commissioned on the Martha L. Black, constructed at Versatile Pa- Since becoming part of the world- wide Ulstein Group in 1984, Ulstein Maritime has achieved major suc- cess in areas outside their tradition- al North American market. Recent orders received include two 2,000- hp Z-Drives for McTay Shipyards in the U.K., to be installed in a coastal tug; two 1,000-hp Z-Drives for a fer- ry being constructed at Eglo Ship- yard in South Australia for opera- tion out of Adelaide (through Hawker Siddeley, Australia); and four 800-hp Z-Drives for Indonesia. In North America orders for five 1,500-hp deck-mounted Z-Drives for dredges have recently been re- ceived. Two were commissioned in Reg Allen, president and general manager of Ulstein Maritime shown with a 2000 HP Model 1650 H Z-drive propulsion unit. terms, the RF-2331 is extremely cost effective compared to a satellite system. Find out more about our 125 watt or IKW ARQ systems and our full line of acces- sories. Write or call: Harris Corporation, RF Communications Group, Marine Marketing, 1680 University Avenue, Rochester, New York 14610 U.S.A. Tel: 716/244-5830. Telex: 978464. m HARRIS For your information,our name is Harris. Circle 129 on Reader Service Card A MER/CA/S/ /DENT/F/CAT/OH 47 PRODUCTS /MC. 145-58 ST. BROOKLYN, NY 11220 (718) 492-3400 SHIP LABELING - SAFETY, WARNING & OPERATING INSTRUCTIONS NAMEPLATES - VALVE PLATES - DECALS - SIGNS - LABEL PLATES CARDHOLDERS - LICENSE FRAMES i MOST ITEMS IN STOCK • FAST DELIVERY • SPECIAL READINGS MADE TO YOUR ORDER * ' Circle 231 on Reader Service Card The Ulstein Maritime Model MC-500 Strut Drive. 1 94 Maritime Reporter/Engineering News
