Page 4: of Maritime Reporter Magazine (June 1985)

McDermott Gets Contract

From SOHIO To Build

Offshore Drilling Platform

McDermott Marine Construction, a major operating unit of McDer- mott International, Inc., has re- ceived a contract from SOHIO Pe- troleum Company for the design, fabrication, and installation of a deepwater drilling and production platform in 860 feet of water off the coast of Texas in East Breaks block 165 of the Gulf of Mexico.

The 40-well-slot structure is scheduled to be completed and in- stalled by November 1986. Its eight- leg jacket (base) will be installed in one piece with a launch weight of 24,000 short tons. It will have both skirt piles and main piles, and sup- port a 5,000-ton deck.

The SOHIO structure is being de- signed by McDermott's Hudson En- gineering in Houston, and will be fabricated by its Fabrication Divi- sion in Morgan City, La. The jacket will be transported and launched by

McDermott's Intermac 650. The primary construction barge for the installation will be McDermott's

Derrick Barge 22, which has a lifting capacity of 1,600 tons.

Total maneuverability is a matter of degrees...360'

With Elliott White Gill thrusters, you can turn a vessel in its own length. Position it broadside. Negotiate congested docks and tight berths. Counteract strong cross-currents. Even provide main propulsion.

Without extending outside the hull lines of the vessel, reliable White Gill Units provide thrust that is completely variable throughout 360°, and is not diminished by ship motion. That's total control—with minimum hull resistance and without danger of fouling or damage by underwater obstructions— even in the shallowest water in which the vessel can operate.

Control systems range from a simple joystick (lever) to computerized dynamic positioning.

Hundreds of these easy to install units—original equipment and retrofits—are saving time and money on tankers, tugs, oil rig service vessels, barges, research ships, salvage vessels, cable ships, ferries and other vessels throughout the world.

For full information on White Gill thrusters in four basic models and a wide range of sizes, call or write for a copy of our Bulletin Q-57. Elliott

Company, P.O. Box 239, Springfield, Ohio 45501.

Phone (513) 324-4191. TWX 810-452-2865. Or Elliott

Turbomachinery Ltd., Zeta House, Daish Way,

Dodnor Lane, Newport, Isle of Wight, England

P030 5XJ. Phone Newport, I.O.W. (0983) 521333.

Telex No. 86216 ELLIOT G.

White Gill.

It's like taking your tugs with you.

UNITED TECHNOLOGIES

ELLIOTT

Circle 160 on Reader Service Card ;r.»N«9

Shipboard Safety

Criteria Monitored

By Siemens Computer —Literature Available

Marine computers are used to cal- culate and check shipboard safety criteria, primarily stability and car- go distribution, but also material stresses. The rugged Siemens SI-

MAC marine computer is this type of microcomputer which runs on the concurrent CP/M-86 standard oper- ating system used worldwide.

A ship cannot be optimally laden without checking the safety criteria.

To check the safety of a ship, the classification societies have made such marine computers mandatory for various types of vessels such as container ships, bulk carriers and tankers. A vessel's economic effi- ciency may be greatly improved by accurate and easy calculations. The

COSYMAC (Computer System for

Marine Calculations) program sys- tem developed by Flensburger

Schiffbau-Gesellschaft is the basis for the cargo-dependent calculation of stability and of the structural stressing of the ship.

The operating system of the SI-

MAC marine computer makes it possible to process several different programs at the same time, thus also allowing the computer to be used for general shipboard calcula- tions such as stores control, spare- parts stocking and any kind of ad- ministration tasks on board.

Data is entered by interactive communication at the economical- ly arranged video terminal. A print- er is connected to the terminal which registers the results in the form of tables and curves.

For additional information and literature on the Siemens' SIMAC marine computer,

Circle 46 on Reader Service Card

Puroflow Gets Canadian

Order For Ultraviolet

Water Purification Systems

Two new CN Marine icebreaking ferries are being fitted with ad- vanced ultraviolet water purifica- tion systems that will provide pure potable water without the use of chlorine or other harsh, expensive chemicals.

Orders have been received by Pu- roflow Marine Corporation of New- port News, Va., to supply U/V water treatment systems for the two vehi- cle ferries under construction at

Davie Shipbuilding Ltd. in Lauzon,

Quebec. The first vessel, the MV

Caribou, is scheduled for delivery in

October this year.

The Puroflow water purification systems use high-intensity, ultra- violet light to disinfect water with- out any of the bad taste or odors of chemical-based systems. Moreover, the U/V process imparts no corro- sive, irritating, or allergenic proper- ties to the water being treated, and it eliminates the need to store ex- pensive, potentially hazardous chemicals aboard the ship.

For more information on Puro- flow water treatment systems,

Circle 51 on Reader Service Card