Page 62: of Maritime Reporter Magazine (August 1992)

with reportedly a three-fold high collision resistance than a single shell tanker. Newbuilding S 236 has a class notation COLL 2 for her wing tanks and COLL 5 for her cen- ter tanks. Other recently delivered double-hull tankers built by

Lindenau—Rochen I, Leng and

Hummel—have also been awarded similar class notations.

The double-hulled Conger is the sister ship of the Wels, which was recently launched by Lindenau Werft.

Lindenau Launches

Another Double-Hull Tanker

For Carl Buttner Shipping

The Kiel-Friedrichsort shipyard of German shipbuilder Lindenau

Werft recently christened and launched the second 23,400-dwt double-hull tanker of a newly devel- oped design for Bremen shipping company Carl Buttner. The God- mother for the vessel was Mrs. Eva

Schmidt.

The Wels is the 16th double-hull tanker built and delivered by the yard to international and domestic owners since 1976. At 555 feet in length with a capacity of 27,740 m3,

Newbuilding S 236 along with her sister, the Conger, are the largest double-hull tankers sailing under the German flag. She is classed by

Germanischer Lloyd + 100 A4 E3, "Chemical Tanker Type lTOil

Tanker," MC E3 AUT, INERT.

Newbuilding S 236 has the highest collision resistance notation, "COLL," awarded by Germanischer

Lloyd.

Based on Lindenau's newly de- veloped Tanker Class 2000 design, the vessel has a double side shell

WELS

Equipment List

Main engine MAN B&W

Propeller KaMeWa

Bowthruster Jastram

Generator engine Yanmar

Thruster engine ABB

Generator AEG

Reduction gear Renk Tacke

PT0 AE

Engine controllers MAN B&W

Steering controls Frydenbo

Deck machinery Norwinch

Shafting KaMeWa

Coatings International

VHF radio Debeg

SSB radio Debe

Radar Atlas Elektronik

Compass Anschutz

Autopilot Anschut

Echo sounder Honeywell

Cargo pumps Bornemann

The Wels has a length between perpendiculars of 524 feet, beam of just over 80 feet, depth of 44 feet and draft of 34 feet. Her MAN B&W 6L 58/64 diesel has an output of 7,440 kw (9,997 hp) and provides a service speed of 15.5 knots.

Lindenau reports that the design of the tanker protects the cargo tanks from damage in the case of a colli- sion with low penetration (maximum of 80 cm), such as in a harbor area.

Additionally, the shipbuilder also states that, as compared with single- hull vessels, the Tanker Class 2000 design also reduces the amount of spillage in the cases of high depth of penetration accidents because each cargo tank is smaller due to the protective location of the double shell.

Inherent in the double-hull de- sign is savings in heating energy due to the insulating air in the side shell. The smooth inner tank walls also save cleaning time and reduce slop.

The Wels is expected to be deliv- ered by the end of December 1992.

For additional information about the shipbuilding services of

Lindenau Werft,

Circle 31 on Reader Service Card

Bisso Marine Awarded

Salvage Contract

Bisso Marine Company, Inc., New

Orleans, La., has been awarded the salvage contract to raise the dredge

Port Arthur, owned by T.L. James and Company, Inc., Kenner, La. The dredge recently rolled on its side and sank at mile 96.1 AHP of the

Mississippi River just up from Cres- cent City Connection bridges.

Salvage plans call for the use of

Bisso Marine' DB Cappy Bisso, DB

Lili Bisso, DB Cairo and DB Ajax, which have lifting capacities from 700 to 250 tons, to provide the right- ing up and lifting capability to refloat the dredge and deliver it to its own- ers.

Leon Ryder, salvage master for

Bisso Marine, is in charge of the operation.

For free literature detailing the salvage services of Bisso Marine,

Circle 49 on Reader Service Card

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Circle 236 on Reader Service Card

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Handy auxiliary pump for regular or emergency pumping of liquids from ballast, bilge, cargo spaces and tanks.

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Circle 276 on Reader Service Card 64 Maritime Reporter/Engineering News