Halter Marine Delivers First Of Three Supply Boats To Brazil —First From U.S. Shipbuilder

Halter Marine, Inc., New Orleans, La., has delivered the first offshore supply boat built by a U.S. shipbuilder to the nation of Brazil.

The 185-foot Oxala (pronounced o-shal-a), the first of a three-boat contract, was built for H. Dantas Servicos Maritimos, S.A. of Rio de Janeiro for operations off the coast of Brazil with Petrobras, the Brazilian state oil company.

The Oxala is 185 feet in length, with a 40-foot breadth, and 14-foot depth. Her normal operating draft is 11.92 feet and normal displacement is 770.63 long tons.

She is powered by two EMD 12-645 E6a engines developing 1,500 horsepower each at 900 rpm. Reverse/reduction gears are Reintjes WAV 1850 with a ratio of 3.455:1, and the vessel is equipped with two fourbladed 90-inch-diameter stainless-steel propellers.

Controls for her two stations are by Westinghouse.

The Oxala is equipped with four Smatco dry mud tanks with a total capacity of 4,000 cubic feet, and four liquid mud tanks with a total capacity of 49,012 gallons. She has a fuel oil capacity of 104,134 gallons and can carry 3,486 gallons of lube oil. The new ship has a 120,742-gallon ballast capacity and can carry 37,060 gallons of fresh water.

Deck machinery includes a towing winch, anchor windlass, two capstans, two electrohydraulic tuggers and a five-foot-diameter stern roller with towing guides.

Auxiliary machinery includes two General Motors 98-kw generators and two 98-kw switchboards. The vessel is equipped with a 13-point alarm system, and is cooled by Carrier air-conditioning and heated by a Lennox heating system. Also onboard are two Quincy air compressors, a Deming sanitary water system, fire protection system, and fully equipped modern galley.

Communications and navigation equipment includes UHF and single-sideband radios, Decca radars, a Ritchie magnetic compass, Benmar direction finder and Sperry gyrocompass and autopilot.

The Oxala is built to Inter-Governmental Maritime Consultative Organization (IMCO) requirements and carries a tonnage certificate under 400 gross tons. She is U.S. Public Health approved and is American Bureau of Shipping classed A-l, Maltese Cross, full ocean towing, AMS circle "E", and carries Panama Canal and Suez Canal admeasurement certificates.

The new Brazilian-flag vessel was built at Halter's Moss Point, Miss., Division, one of 10 shipyards owned and operated by Halter Marine in the Southeastern United States.

Halter is the world's largest builder of supply vessels for the offshore oil and gas industry.

Maritime Reporter Magazine, page 40,  Sep 1978

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Maritime Reporter

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