BROSTROM'S N. SEA RO-RO'S: TWIN SKEG HULLS AND SLOW-RUNNING DIESELS

The smallest ship in the Brostrom's ro-ro fleet will be propelled by two of the latest extra-long-stroke B & W L45GF type engines, which develop their m.c.r. at 170 rpm and are very economical in operation. This high-capacity tralier/container ship is being built by the Mitsui Group in Japan and is one of three types on order from Brostrom; it is intended for the North Sea trade. Principal particulars are: Length, b.p.-130 m; Beam, mld-22.8 m; Depth, mld to upper deck-16.2 m; deadweight, approx.-6,500 t; Container capacity-463 TEU. Cargo will be accommodated on the tank top, main deck, and upper deck. Access to the upper deck is by a long inclined ramp located to port, and to the tank top by a lift. During the design stages the Swedish shipbuilders Gotaverken and the Swedish Shipbuilding Experiment Tank, Gothenburg, carried out tests on a semi-catamaran or "twin-skeg" afterbody design specially intended for ro-ro vessels. The results of this work, which was doubtless based on previous experience with the Stena Line ferries, suggested that propulsion costs could be reduced by some 35% with twin-skeg hulls as compared with conventional ro-ro hull designs. The article includes a general arrangement elevation of the ship, a part lines plan of the twin-skeg hull and details of the machinery installation in the skegs. Order from: BSRA as No. 48,283.

  • Corporate Authors:

    Reed (Thomas) Industrial Press Limited

    36/37 Cock Lane, Saracen's Head Building
    London EC1A 9BY,   England 
  • Publication Date: 1978-1

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Filing Info

  • Accession Number: 00178194
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Jul 19 1978 12:00AM