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Innovative Tugboat #Jekyll Isle7 Delivered By Gladding-Hearn The 76-foot tug Jekyll Isle (shown above) has been delivered by Gladding-Hearn Shipbuilding Corporation, Somerset, Mass., to Jekyll Towing and Marine Serv- ices Corporation of Jekyll Island, Ga. With the power and range to perform both mid-ocean and coast- al work, the 185-ton vessel fills a void in the towing and chartering market, according to Charles D. Gibson, president of Jekyll Tow- ing. Equipped with a wide array of deck gear and electronics, the new vessel is the latest in a series of innovative tugs designed and built by Gladding-Hearn during the yard's 25 years of operation. In 1977, the yard designed and con- structed the first U.S.-built tug powered by 360-degree, steerable propulsion units. The Jekyll Isle is fitted with fuel-saving Kort nozzles, and she has a bollard pull of 171 A tons. She holds both American Bureau of Shipping and U.S. Coast Guard approval for Unrestricted Ocean Service, and meets USCG stabil- ity standards for towing, passen- ger service, and over-the-side crane lifts with up to 24-foot out- reach. The boat is designed for crew and passenger comfort as well as performance. For coastal day trips, she can carry a master, two or three crew members, and up to 12 passengers. For offshore mis- sions she has four berths located in the forecastle and two in the dinette area, providing accommo- dations for four crewmen and three to four guests. The vessel has central heating and air-con- ditioning throughout. Main propulsion power is sup- plied by two General Motors 16V- 92 Detroit Diesel Allison engines with a total output of 1,200 bhp, giving a free-running speed of 11.3 knots. At cruising speed, the boat has a range of 4,000 miles and she can operate for up to 20 days at sea without resupplying when on low-fuel use, such as maintaining a station-holding pat- tern. Fuel capacity is 13,000 gal- lons, and her 550-gallon water tanks can be replenished by a 150-gpd Maxim evaporator. Two 3-71 Detroit Diesel-pow- ered generators supply 30 kw each. The electrical system is de- signed for non-parallel operation. A special feature allows exclusive use of one generator by a char- terer while the other provides ship's power. Two banks of 12-volt dc bat- teries power electronics, emer- gency lighting, and auxiliary en- gine starting. Main engine start- ing and certain specialized elec- tronics are powered by 24-volt dc batteries. Deck gear includes three winch- es, a knuckle-boom crane, 25-ton, pneumatic-release tow hook, and a 6-ton hydraulic A frame. The latter lowers to the deck while the vessel is in the towing mode. An aft steering station — with controls for the A frame, main winch, knuckle-boom crane, and hydro-winch — and a 600-watt searchlight for aft maneuvering are located on a walkway behind the pilothouse. A life raft and small boat are Equipment and Suppliers Main engines (2), 16V-92 GM-Detroit Diesel Allison. Generator engines (2), Detroit Diesel Allison. Reduction gears, Twin Disc. Propellers (2), Kaplan. Crane, Appleton. A-Frame drive, Wabco. Winches (2), MARCO. Winch, capstan, and anchor windlass, New England Trawler. Anchors (2), Baldt. Tender, Boston Whaler. Steering gear and wheel, Wagner. Steering controls, Mathers. Compasses, Ritchie; Wagner. Searchlights (3) and navigation lights, Perko. Electric panels, Federal Pacific; Hens- chel; Simplex. Bilge and deck wash pumps, Jabsco. Fire pump, Gorman Rupp. Fendering, Schyler. Heating and air conditioning, Envi- ronmental Systems. Radars (2) and Loran, Raytheon. Depth recorder, Simrad. Sonars (2). Wesmar. Digital depth sounder, Raytheon. Facsimile recorder, Furuno. Bridge watch, Radar Devices Inc. Cordage, Samson. stored on the upper deck. A davit is fitted for lowering the boat and handling an over-the-side trans- ducer boom. A wraparound sand- wich fender system includes bow fender strips from the rail to 24 inches above the waterline for push-towing jobs. The vessel's electronics include a Wagner autopilot, Raytheon 1025 Commercial Model Radar, a smaller Raytheon back-up radar, Simrad EQ depth recorder with MC expander system, and Wes- mar scanning sonar and Towfish sonar. Her Loran is a Raytheon 600 with navigational computer including latitude and longitude readout. Radios are two Nautilus VHFs and one 1,000-watt SSB. For route and operational plan- ning she carries a Furuno fac- simile Weatherfax. Dixie Ships First Of 5 New Dredges To The Egyptian Dredging Co. The first of five dredges begins the first leg of its long journey to the Egyptian Dredging Company of Cairo, Egypt. The Dixie Dredge Corporation, St. Louis, Mo., a subsidiary of Pott Industries Group, St. Louis Ship Division, Houston Natural Gas Corporation, has shipped the first of five new Dixie dredges and associated equipment to the Egyptian Dredging Company of Cairo, Egypt, it was announced by Jack T. Dunn, president. The new Dixie dredges, which are part of a U.S. State Depart- ment A.I.D. project, employ a "tilting spuds system" which will allow the dredges to pass under bridges and other obstacles with- out having to remove their spuds. The Egyptian Dredging Company will build the hull side sections for the dredges, which will then be employed throughout Egypt to maintain and construct irrigation canals. Each of the dredges is a modi- fied Model CS-2-14 (EDC) Dixie dredge. The dredge pump in each craft is powered by a Caterpillar D-348 turbocharged and raw wa- ter aftercooled diesel engine de- veloping 725 continuous horse- power. The service water pump, along with the hydraulic system and generator on each dredge will be powered by a Caterpillar 3306 turbocharged and raw water aftercooled diesel engine produc- ing 175 continuous horsepower. The overall hull length is 40 feet long by 10 feet wide, and the dredging ladder, with an 18-foot removable section, extends 45 feet, enabling the dredge to dig to a depth of 33 feet below water level. Other equipment to be pro- vided to the Egyptian Dredging Company includes five 36-foot dredge tender boats, two 32-foot crew boats, and spare parts and accessories needed to support dredging operations. Delivery of the fifth Dixie dredge, completing the $3.5-mil- lion contract, is scheduled before the end of the year. Anyone wishing further infor- mation about dredges is invited to direct the inquiry to Dixie Dredge Corporation, Attention: Jim Bishop, Manager-Marketing, Dept. MR, 8224 Polk Street, St. Louis, Mo. 63111. 34 ZIDELL Maritime Reporter/Engineering News
