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Mid-Coast Delivers Cummins-Powered Crabber-Tender Mid-Coast Marine recently deliv- ered the 88-foot combination crab- ber-tender Controller Bay, designed for Southeast Alaska. The new Mid- Coast boat was designed and built for Dick Miller and Dennis Freed of Seattle. Her length overall is 88 feet 2 inches, beam 25 feet 8 inches and molded depth is 12 feet 4 inches. The main engine, 800 hp 1,800 rpm, is a Cummins KT 38M with a Twin Disc MG 530 marine gear at 4.94:1. The intermediate shaft at 4- 1/2 inches diameter and tail shaft at 5 inches diameter are both Aquamet 17 stainless steel running through a Cooper split-type roller bearing. West Coast Propeller provided the four-blade 79-inch bronze propel- ler. The long list of auxiliary equip- ment is headed up by the main aux- iliary generator set, which is a Cum- mins NT 855, 320 hp continuous, fitted with a Lima 175-kw generator on the back end and twin double Dennison hydraulic pumps on the We'll show you... how to remove corrosion, lead paint and epoxy on bridges, bulkheads, girders, and large surfaces. The portable air-powered Dynascaler* is designed for use with 3M Company heavy-duty Roto Peerr abrasive flap assemblies. The rotary action of the abrasives mechanically fracture the worksurface, without any significant removal of the base metal. All Dynascaler models offer operator safety and convenience while sharply reducing labor time and costs as you face the tasks of: Marine coating removal. Pre-weld descaling. Generating non-slip surfaces. Surface preparation. For solving those tough descaling operations, look to Dynabrade... we'll show you how! CALL OR WRITE TODAY FOR FREE LITERATURE AND PRICING INFO: 1-800-828-7333, EXT. 44. DYNABRADE, INC. Government Sales Dep t. 72 E. Niagara St. Tonawanda. NY 14150 Phone. (716) 694-4600 Fax: (716) 694-4746 Circle 215 on Reader Service Card AD^OOCC AIR CONDITIONING & REFRIGERATION » Cruise ship's air conditioning » Authorized Dunham Bush Representative » Air conditioning machinery » Packaged air conditioning units > Refrigeration machinery > Refrigerators, freezers, ice cubers » Walk-in coolers and freezers » Service/parts available worldwide > Stocking warehouse for parts/refrigerants » Drawings/surveys » Control room dehumidification systems ADRICK MARINE CORP. Adrick Cooling Corp. 320 Cantor Ave. Linden, NJ 07036 201/862-5944 FAX 201/862-2209 Space saving physical/ c«a. ' chemical design * requires 90% less space than biological systems. m Low installation costs K^MBb Simple, automatic *• operation Low operating and maintenance costs Reliable micro- processor control Quick delivery... 6 standard models Model ORCA 11-24 Model 11-12 11-24 11-36 11-165 11-330 11-500 Number people served 12 24 36 165 330 500 'If low volume flush toilets are used, the number of people can be doubled. USCG certified and IMO approved Call or telex Dick Lambert for technical information, brochures or a quotation on a specific model. ENVIROVAC INC. ffiKSft u.s.A. Telephone 815/654-8300, FAX 815/654-8306, Telex 257415 Toll Free (USA & Canada) 800/435-6951 (ex. IL) The Cummins-powered combination crab- ber-tender Controller Bay, recently deliv- ered by Mid-Coast Marine of Coos Bay, Ore. front, driven by a Twin Disc two- pump drive. The number two gener- ator set is a Cummins N855 with a Lima 100-kw generator and an iden- tical pump set to the #1 generator. In addition to the large generators, a 30-kw Isuzu light plant was in- stalled. All four engines are cooled by Fernstrum grid coolers and the exhaust is handled by Harco muffl- ers. The engine room is protected by a manual Halon fire suppression sys- tem with automatic engine and vent fan shutdowns. As for E.R. ventila- tion, a 3,600 CFM tube axial fan does the job of keeping the engine room air fresh and cool. For pumps, the vessel was equipped with two 1- 1/2-inch bilge pumps, one electric, and one engine driven, a 15-gpm positive displacement fuel transfer pump, a crab pot washer pump, and two crane Demming 20 hp 4360-M5 RSW/crab circulation pumps 1,200 gpm each. To cool the seawater for RSW, PSER Inc. supplied a 40-hp Carrier refrigeration system with 60 tons capacity, plumbed through a galvanized box-type chiller. Back outside on the deck, the boat was outfitted with a Slattery MCK 630 six-ton knuckle/squirt deck crane capable of reaching any point on deck and then some. The anchor winch is a Thompson 3224 fitted with 600 feet of 3/4-inch gal- vanized wire, one shot of 1-inch gal- vanized chain and a 900-pound Stockless bow roller. Other deck gear included a Marco JO 117 crab pothauler on a Mid-Coast Marine articulated davit and a Hansen king crab pot launcher. As far as other work going on at Mid-Coast, the yard is presently pulling plate on a new 72-foot crab- ber for Joe Merino of Westport, Wash. In addition, the 170-foot lon- gliner Yukon Queen is on the dry- CONTROLLER BAY List of Suppliers Main engine Cummins Marine gear Twin Disc Shafts Aquamet Roller bearing Cooper Propeller West Coast Propeller Generators Cummins/Lima Pumps Dennison Pump drive Twin Disc Light plant Isuzu Grid coolers Fernstrum Mufflers Harco Fire System Halon Refrigeration Carrier Deck Crane Slattery Anchor winch Thompson Crab pothauler Marco David Mid-Coast Marine Crab pot launcher Hansen Circle 181 on Reader Service Card Circle 240 on Reader Service Card 50 Maritime Reporter/Engineering News Dynascaler Descaler
