Catamaran

Details Catamaran Catamaran

1991-08-29

1993-11-23

Mitchell, David M.

Ships

Displacement-type hull

Multiple hulls

114274, B63B 110

Patent

active

052634272

ABSTRACT:
A catamaran comprises two single hulls arranged in parallel in the spaced relation to each other, and a deck for connecting the two single hulls, the single hull having a semisubmerged portion and a connecting portion for connecting the semisubmerged portion to the deck, the semisubmerged portion having a maximum width portion where the width of its vertical transverse cross section is largest at a position near the water level, the width of vertical transverse cross section of the semisubmerged portion abruptly decreases upward in the vertical direction from the maximum width portion and gradually decreases downward in the vertical direction from the maximum width portion, the semisubmerged portion having a minimum width portion where the width of vertical transverse cross section becomes smallest after it abruptly decreases upward in the vertical direction, and the width of vertical transverse cross section of the minimum width portion is 60% or less and 30% or more of the width of vertical transverse cross section of the maximum width portion.

REFERENCES:
patent: 3655445 (1972-04-01), Padwick
patent: 4174671 (1979-11-01), Seidl

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