This report examines the technical feasibility of submarine alternatives to surface-borne cargo transport. Beginning with gross statements of potential missions and mission requirements, the study derives submarine concepts of transporting military loads which are assumed packaged in standard commercial containers. Submarines of conventional and tug-barge configurations are examined and estimates made of speed-power performance near the surface, dynamic stability and control, surfaced motions and seaway loads. Several cross-sectional hull and structural geometries are examined for structural adequacy and weight. Possible weight allocations for a submarine cargo ship are presented. Results of this preliminary feasibility investigation indicate that the concept of a cargo-carrying submarine may be technically feasible. It is found, however, that the transport efficiency of the submarine container cargo ship is significantly lower than that of a surface ship, and that unless other factors, such as attrition are considered, there is little incentive to consider submarine cargo transport. (Author)


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