It is further desirable that the buoyancy device be arranged to provide safety, stability and performance under a wide variety of sea conditions, in particular to provide buoyancy sufficient to maintain the vessel in an upright position and also allow the main deck of the cockpit to be self-bailing, such that water will evacuate on its own with no mechanical assistance, even under fully swamped conditions. It is also desirable that the buoyancy device achieve a maximum static lateral stability for the boat, even when the boat is lightly loaded. It would be desirable to have a stabilizing tube/buoyancy device which provides high static stability, as well as consistent high performance and sea-keeping ability, for various hull shapes, including deep-vee hull configurations. Still further, some arrangements provide satisfactory stabilization under certain conditions, but not in other conditions.
Further, in many arrangements, performance is sacrificed by the particular design/configuration of the buoyancy structure. Such arrangements are not considered to be true stabilized watercraft. In some arrangements, for instance, the tubes are arranged to provide only enough buoyancy to keep the vessel from sinking. The above arrangements do have disadvantages. Various cross-sectional configurations are known for such stabilizing tubes, including circular, D-shaped and rectangular arrangements. Rigid, hard-sided aluminum or fiberglass arrangements are also known, such as shown in U.S. Other stabilizing arrangements use inflatable tubes. Examples of such structures are shown in U.S.
Some stabilizing arrangements utilize foam tubes which extend around a portion of the boat.
Various stabilizing arrangements for boats are known. This invention relates generally to stabilizing/buoyancy arrangements for a boat, and more specifically concerns a buoyancy structure which extends from the vicinity of the bow of the boat to the stern, providing enhanced stability for the boat.
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