Bollinger To Build Three Boats for Chouest

Bollinger Shipyards signed a contract for three 145 x 36-ft. (44.1 x 10.9-m) supply/utility boats with Edison Chouest Offshore. The vessels will meet new regulatory standards and will be less than 100 gt and less than 500 GT registered tonnage, and will have a maximum draft of 11.5-ft. (3.5-m); normal operating draft will be eight ft. (2.4 m).

Delivery of the first vessel will occur in Summer 2002, with the remaining vessels following in October and December 2002.

A pair of Cummins KTA-38MO diesel engines rated 750 bhp at 1,600 rpm were selected to power the vessel, driving Bollinger 72 x 57 in., four-blade, stainless steel propellers through Twin Disc MG5301 reverse/reduction gears with a ratio of 4.96:1. The second and third vessels will be powered by two Caterpillar 3508B-diesel engines rated at 855 bhp at 1,600 rpm, driving 72 in., four blade Nibral propellers through Twin Disc MG 5301 reverse reduction gears with a ratio of 4.96:1. International Marine Systems Hydraulic steering will be installed at two pilothouse stations and a 272 hp Schottel, STT-110 bow thruster will aid steering on all three vessels.

The engines feature a package that meets new IMO emission standards. The boats' electrical power will be provided by two Cummins 6CTA8.36 diesels driving two Cummins 99 KW generators with direct drive liquid mud pumps off of the generator engines thereby eliminating belt systems.

Each of the new Chouest OSV's will be equipped with four liquid mud tanks and two Methanol tanks.

The vessels' large 95 x 32 ft. (28.9 x 9.7 m) aft decks will be able to carry up to 390 long tons of cargo, and crew/passenger decks will emphasize crew comfort with larger staterooms and living quarters with extra sound proofing and carpeting, as well as 20 tons of Carrier air conditioning and 25kW heating.

Maritime Reporter Magazine, page 9,  Mar 2002 belt systems

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