Keel for sail ships

Details Keel for sail ships Keel for sail ships

1998-01-23

1999-10-19

Basinger, Sherman

Ships

Keels

Rocking

114132, B63B 4100, B63B 338

Patent

active

059670746

ABSTRACT:
A sailing yacht, in addition to its ballast keel (2), has at least one winged keel ( ) which optionally also carries ballast. Both ballast keel (2) and winged keel (1) are mounted to swivel on the hull of the sail ship around an axis aligned essentially in the longitudinal direction of the sail ship. Thus, by swivelling ballast keel (2) the righting moment is changed, for example, increased. By swivelling winged keel (1) its lateral plane part can be changed and thus can be kept large even when the sailing yacht is heeling.

REFERENCES:
patent: 4094263 (1978-06-01), Marcil
patent: 4352335 (1982-10-01), Sugden
patent: 4817550 (1989-04-01), Gutsche
patent: 5009178 (1991-04-01), Geffken
patent: 5152238 (1992-10-01), Page
patent: 5280760 (1994-01-01), Edwards
patent: 5522703 (1996-06-01), Okamoto
patent: 5795198 (1998-08-01), Pedone
"America's Cup'88", pp. 128-134, Yacht, Jan. 5, 1988.
"Neuer Kiel aus Holland", p. 13, Yacht, Mar. 9, 1994.

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