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The Royal Institution of Naval Architects

Design and Operation of Container Ships

International Conference, March 1999, London

Ever increasing numbers,  sizes, speeds and sophistication of Container Ships on the major Eastern, European and American routes bring great demands for Feeders with an immense variety of features to cover a highly competitive local traffic.

Turkey currently builds a miscellany of types in the Feeder (100-500 TEU) and  Feedermax (500-1000 TEU)  range that cover all sizes and types of boxes, with reefer, dangerous goods and other special cargo features, together with  capabilities for general cargo such as steel coils, paper rolls,  pallet and project cargo.

These ‘maids of all works’, or otherwise Container / Multipurpose ships, have hulls built at very low cost,  imported machinery and equipment of high quality and performance installed locally and prompt deliveries.

Their design favours ease of construction and facilities  for a multiplicity of cargo, efficient port turnaround, together with economical and effective operations, while practical standardisation combines advantages in both.

Elements such as Controllable Pitch Propellers, Thrusters, Bulbous Bows, Main / Auxiliary Engines, Automation,  Shaft Generators are combined for required sea or port performances.   Pontoon and / or Hydraulic Hatchcovers, Cellguides, Portable Decks / Bulkheads, Long Holds, Container and General Cargo Fittings, Stack Weights, Reinforced Tanktops, Cranes up to 150 tons, Antiheeling Systems, Sprinklers, etc are all combined for required box or general or project cargoes.

Builders Madenci at Eregli with 'Celtic' (450) and Marmara at Yarimca, and Yardimci, Sedef and Celik Tekne at Tuzla,  Istanbul, with 'Marcon 400 / 800', 'Combimar' (800), 'Mykonos' (350), 'Mark 5' (750), 'Multiflex' (800), 'Asia/ America Feeder' (600), 'Kalkavan/Mark 7' (1100) and Pinat/'Mark 6' (970) respectively, are typical in this type/range.

Some of these projects are international joint ventures, where Owner, Chartering, Operations and Builder participants all contribute to concept design in tune with current market requirements.  Others have joined forces in special liner trades, Mediterranean / Carribean / USA, where ever changing market trends are monitored and eventually incorporated in design.

There are no spectacular innovations, but creativity in combinations is producing some interesting and useful ships.