| 摘要 |
Flotation hulls are fabricated from at least one pontoon unit of block-like configuration having four flat side walls of rectangular configuration and bulkhead end walls positioned at the extremities of the side walls. Several pontoon units may be assembled end-wise by joinder of the bulkhead end walls. A nose piece is attached to each terminal end wall of a sequence of one or more pontoon units. The nose piece has a four sided pyramidal shape having a pointed extremity directed away from the pontoon units. Boats can be fabricated using one or more of the hulls by orienting the hulls V-shaped downwardly. When two or more hulls are utilized in a boat, the hulls are held together in parallel disposition by cross arms which penetrate the hulls and attach to the bulkhead end walls.
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