Page 34: of Maritime Reporter Magazine (October 15, 1971)

On August 23,1971, underwater salvage history was made bp the

Cytlo Manufacturing

Co. of Denver, Colo.

ARCTEC Receives Contract

For Icebreaking Model Tests

Of Great Lakes Bulk Carriers

The Maritime Administration, U.S. Depart- ment of Commerce, has awarded a research contract to ARCTEC, Incorporated of Co- lumbia, Md., for the physical modeling of ice- breaking by Great Lakes bulk carriers. The program is directed toward the development of advanced concepts for facilitating the move- ment of large bulk carriers through the more severe "bottleneck" portions of the Great

Lakes due to ice and snow barrier conditions.

These bottleneck areas include White Fish

Bay, Saint Mary's River, Detroit River/Lake

St. Clair, and Buffalo Harbor.

The proposed program will be conducted in two phases. Phase I will be composed of the development of realistic models of the actual ice conditions prevailing in the bottle- neck areas, and the examination of the be- havior of a model of an existing bulk carrier in these ice conditions. Phase II will consist of duplicating these ice conditions to deter- mine the effectiveness of various devices to improve the performance of bulk carriers.

The first phase will involve the development of realistic models of "mush ice," ice fields under pressure and clogged channels. Subse- quently, unimproved models of bulk carriers will be towed through these fields. Variations in model length, velocity, depth of snow cover, depth of mush ice, hull surface roughness, ratio of ship draft, plus ice depth to water depth, broken channel width, effect of wind- induced side forces on resistance, refreezing of the channel, channel width, and ship draft will all be considered. These tests will pro- vide the characterization of the performance of bulk carriers in these media. Phase I of the program is scheduled for completion by next month.

Phase II will consist of separate studies of the effectiveness of various devices in im- proving the performance of the ore carrier in these media. Advanced concepts to be stud- ied will include, but not be restricted to, bow propulsion units, water-jet systems, and air- bubbling systems. This phase of the study is scheduled for completion by April 1972.

Employing Cyclo's unique Pressurized Sphere

Injector system, a 2,400-ton sunken barge was raised from 50 feet of water in the Gulf of Mexico.

Marine experts believe that PSI will revolutionize the sea sal- vage industry, worldwide, re- sulting in virtually foolproof op- erations at any depth, at vastly less cost to owners of salvage- able vessels.

SEND TODAY FOR DETAILS DESCRIBING PSI

Or call

The PHILLYCLAD TS glass-reinforced, epoxy laminate system offers: • Outstanding corrosion and erosion pro- tection for propeller shafting and other metal exposed to severe marine environ- ments. • Protection against moisture penetration and peeling even when subjected to im- pact. • Protection that generally outlasts the life of the propeller shaft. • Military Spec. MIL-R-23461 conformance and approval for nuclear submarine shaft covering.

The new Lash Italia has the best of everything including

PHILLYCLAD TS SYSTEM rein- forced epoxy laminate protec- tion for shafting. This system has been proven in more than ten years of use on distin- guished ships like the "Admiral

Callahan" and "Ponce de Leon" and other vessels.

This is the best protection sys- tem you can get. Numerous tests prove that shafts under extreme stress and usage fail through metal fatigue before this tailshaft protection system fails.

Write or phone now for more information. loading crude oil, and remote control systems for hatch cleaning, opening and closing. Equip- ment for taking on ballast will be able to pump water into both the topside and bottom tanks. Conventionally, separate pumping sys- tems are utilized for topside and bottom tanks.

The triple purpose capability and resulting increase in operational economy and efficiency of OBO vessels are making this type ship very popular, Mr. Ikematsu said.

The world's first OBO carrier, San Juan

Trader, 64,000 dwt, was built at NKK's Tsu- rumi Shipyard in April 1966 and delivered to

San Juan Carriers, Ltd. of Liberia, a division of Marcona Corp., San Francisco. Since that time, NKK has built five vessels of this type.

Main particulars of the new OBO Romantic are: length overall, 997.38 feet; breadth mold- ed, 150.92 feet, and depth molded, 80.36 feet.

The vessel is powered by a Mitsubishi tur- bine with an output of 27,000 shp at 85 rpm delivering a service speed of 16.25 knots.

Overseas Enterprises, Inc.

Opens New Orleans Office

Magnus Olsen, president of Overseas Enter- prises, Inc., has announced the opening of a new office in New Orleans, La. Peder Toft has been appointed managing director, Gulf

Area, and will head the new office which is located in the International Trade Mart.

Overseas Enterprises, Inc. also act as agents for The Portuguese Line-CNCA, Great Lakes

Transoaribbean Line, DS-Tankers, Deutsche

Africa Line, India Steamship Co., D.G. "Nep- tun," and Sea Containers, which is an inde- pendent container leasing firm specializing in chassis, containers, refrigerated containers, tanks, feeder containersbips, and container cranes. "LASH ITALIA" GOT THE BEST

TAILSHAFT PROTECTION POSSIBLE ...

PHILLYCLAD TS SYSTEM

Nippon Kokan Launches 150,000-Dwt OBO Carrier

The 150,000-dwt combination OBO Romantic above dwarfs two tugs during launching at Tsu Shipyard of

Nippon Kokan. The vessel is powered by a Mitsubishi turbine main engine and will have service speed of 16.25 knots.

One of the largest ore/bulk/oil (OBO) carriers on record, the 150,000-dwt Romantic, has been launched by the Tsu Yard of Nippon

Kokan (NKK), Japan's only integrated ship- builder-steelmaker-faibricator. Hiroo Ikematsu,

NKK's New York shipbuilding department manager, said the carrier is being built for

Moonstone Shipping Co., S.A. of Liberia and is scheduled for delivery in December 1971.

NKK's Tsu Yard launched a sister ship for

Moonflower Shipping, also of Liberia, in June, and the vessel will be delivered this month.

Triple cargo versatility of these ships will ena- ble the owner to substantially reduce ballast voyages.

The Romantic features several design and equipment advances for improving operational efficiency. These include slight slant of inner hull bottom toward the center for facilitating

CYCLO MANUFACTURING COMPANY

P.O. Box 2038 3816 Dahlia Street, Denver, Colorado 80201

Phone (303) 399-1590

PHILADELPHIA RESIHS CORP. 20 Commerce Drive, Montgomeryville, Pa. 18936

Phone: (215) 855-8450 38 Maritime Reporter/Engineering News