The major thrust of the first phase of this study to develop a standardized U.S. flag dry-bulk carrier was to identify existing foreign designs that would be most suitable to meet the short-term demand for U.S. flag ships. In order to accomplish this, the study team sought to predict the demand for ships based on projected commodity flows, collected information for 89 different designs offered by shipyards worldwide, and developed a set of preliminary performance criteria for vessels most disirable for U.S. service. This information was synthesized, and resulted in the development of an evaluation procedure which would lead to the identification of those designs that were considered to best meet U.S. needs. Three classes of dry-bulk carrier were selected. A small sized bulk carrier, between 15,000 and 25,000 dwt, capable of trading in the Great Lakes was specified. This ship should have on-board cargo gear, be diesel propelled (preferably a medium speed engine), and have sufficient power to trade at about 15 knots. A medium sized bulk carrier, between 35,000 and 40,000 dwt, will also be required. This vessel is constrained by the draft limit of a number of ports. It should be diesel propelled at around 15 knots and should also have cargo handling gear installed. The third class of bulk carrier identified is a Panamax size ship, greater than 55,000 dwt. It will be developed without cargo gear, but will also be diesel propelled. All of these ships must be versatile enough to trade in a variety of commodities. The report summarizes the principal preliminary performance specifications identified for U.S. standardized vessels.


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    Title :

    Development of a Standardized U.S. Flag Dry-Bulk Carrier. Appendix E. Design Selection


    Contributors:
    A. Baki (author) / R. T. Walsh (author) / R. H. M. Levite (author) / P. J. Rowbotham (author) / D. Stonebridge (author)

    Publication date :

    1979


    Size :

    148 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English