A Seakeeping Comparison between Three Monohulls, Two Swaths, and a column-Stabilized Catamaran Designed for the Same Mission

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A Seakeeping Comparison between Three Monohulls, Two Swaths, and a column-Stabilized Catamaran Designed for the Same Mission

A. E. Baitis / W. G. Meyers / D. A. Woolaver / C. M. Lee

The seakeeping characteristics of six basically different ship designs were evaluated to determine their comparative effectiveness as a U.S. Navy workboat. Three of the designs represent conventional monohulls with different size and speed capabilities. Ship A represents the currently employed torpedo retriever boat, and Ships B and C represent larger versions of A with expanded capabilities. Two designs (Ships D and E) represent small waterplane vehicles which have the same mission capabilities as B and C. Again, Ships D and E differ primarily in their speed capabilities. The remaining candidate design, a column-stabilized catamaran, represents a vehicle which has two distinct operating characteristics. In the transiting condition, this ship is essentially an oceangoing catamaran and is denoted as Ship F. Once the working station is reached, this ship floods down and becomes a very small waterplane area vehicle. The submerged catamaran hulls are connected to the superstructure by four slender elliptical vertical struts. In this configuration, the ship is designated as Ship G.