Mid-Coast Delivers Cummins-Powered Crabber-Tender

Mid-Coast Marine recently delivered the 88-foot combination crabber- 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 propeller.

The long list of auxiliary equipment is headed up by the main auxiliary generator set, which is a Cummins NT 855, 320 hp continuous, fitted with a Lima 175-kw generator on the back end and twin double Dennison hydraulic pumps on the front, driven by a Twin Disc twopump drive. The number two generator set is a Cummins N855 with a Lima 100-kw generator and an identical pump set to the #1 generator.

In addition to the large generators, a 30-kw Isuzu light plant was installed.

All four engines are cooled by Fernstrum grid coolers and the exhaust is handled by Harco mufflers.

The engine room is protected by a manual Halon fire suppression system with automatic engine and vent fan shutdowns. As for E.R. ventilation, 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 galvanized wire, one shot of 1-inch galvanized 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 crabber for Joe Merino of Westport, Wash. In addition, the 170-foot longliner Yukon Queen is on the dry- dock being assisted in a major processing conversion.

For free literature giving full information on the facilities and capabilities of Mid-Coast Marine Circle 58 on Reader Service Card

Maritime Reporter Magazine, page 50,  May 1989 Louisiana

Read Mid-Coast Delivers Cummins-Powered Crabber-Tender in Pdf, Flash or Html5 edition of May 1989 Maritime Reporter

Other stories from May 1989 issue

Content

Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.