Page 37: of Maritime Reporter Magazine (December 1990)

forces underway.The new oiler has a cargo capacity of 183,500 barrels of oil in 18 cargo tanks and is capable of simultaneously receiving, storing and discharging two separate grades of cargo fuel. All cargo valve and pump operations and the ship's se- gregated ballast system are manipu- lated from the cargo control center located in the ship's aft superstruc- ture, which has an overview of the entire underway replenishment deck.

Cargo underway replenishment is accomplished using transfer hoses suspended by a span wire automati- cally maintained in a constant-ten- sion range.

RAILSHIP III

Train Ferry

Schichau Seebeckwerft

This year, Germany's Schichau

Seebeckwerft AG,a member of the

Bremer Vulkan Group, completed what is reportedly the world's larg- est train ferry, the 622-foot Railship

III, for the Railship Group, Liibeck-

Travemiinde.

Managed by the German shipping company H.M Gehrckens GmbH,

Hamburg, the 10,000-dwt railferry adds about 2,000 meters of rail length on three decks to the Rail- ship Group's total of 5,600. Like her sisters, Railship I and Railship II, the railferry operates between Trav- emiinde in Northern Germany and

Hanko in Southern Finland.

The Railship III, with a width of 70 feet and design draft of 19 feet, carries 90 railcars on three decks.

Private cars can be loaded on the weatherdeck by car-loading/unload- ing davits on both sides of the ship.

Built to meet the requirements of

Germanischer Lloyd Class E4 and

Finnish Ice class 1A Super, the Rail- ship III is propelled by a pair of

Wartsila Vasa 46 main engines, the most powerful diesels built by

Wartsila Diesel, which each gener- ate 8,145 kw (10,922 hp) at 450 rpm.

Designed for heavy fuels up to a vis- cosity of 700 cSt/50 degrees C, the engines drive a Lips CP propeller through Lohmann & Stolterfoht re- duction gearing.

Auxiliary power is supplied by two Wartsila Vasa 4R32 heavy fuel engines, which produce 1,620 kw each at 720 rpm. The auxiliary en- gines operate on the same fuel as the main engines.

Equipment List

Main engines(2) Wartsila Vasa

Generator engines .... Wartsila Diesel

Reduction gears . .Lohmann & Stolterfoht

CP propeller Lips

Clutches Voith Turbo

Separators Westfalia Separator

Refrigeration Sabroe

Radar Krupp Atlas Elektronik

Gyrocompass C. Plath

Signal lights Aqua Signal

RELENTLESS

Ocean Surveillance Ship

Trinity Marine

The Trinity Marine Group's

Halter Marine, Inc., Moss Point,

Miss., shipyard completed a six-

December, 1990 ship, approximately $85-million contract with the U.S. Navy, with delivery of the ocean surveillance ship USNS Relentless (T-AGOS 18).

The last of 18 planned monohull

T-AGOS class ships to join the

Navy's ocean surveillance program, the 224-foot-long Relentless has a beam of 43 feet and draft of 15 feet 1 inch.

Operated by the Military Sealift

Command (MSC) and staffed by civilian technicians, the Relentless will tow electronic devices to moni- tor the movement of submarines.

The Relentless will deploy towed linear arrays of hydrophones known as the Surveillance Towed Array

Sensor System (SURTASS). SUR-

TASS is comprised of flexible, neu- trally buoyant cable containing a clarge number of passive micro- phones, each tuned to specific fre- quencies enabling identification of noises made by submarines many miles away.

The data is processed and trans- mitted to shore via satellite, where it supplements information from seabed arrays.

Main propulsion and other ship's service on the Relentless is diesel- electric, provided by four Caterpil- lar/Kato 600-kw generators driving two General Electric motors. Power is transmitted through two shafts (continued)

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