Surface craft

Details Surface craft Surface craft

1975-12-19

1976-12-14

Blix, Trygve M.

Ships

Ballasting

Floats

114 39, 114 61, B63B 4314

Patent

active

039968740

ABSTRACT:
A trimaran has its floats displaceable from normal extended positions to retracted positions close to the central hull and is arranged to have improved stability at large angles of heel with the floats retracted. The retraction is actuable responsively to the heel of the craft so that if the heel angle becomes undesirably large, the retraction of the floats produces a self-righting moment. The floats are also extendable when the craft has righted itself and as it continues underway. The crew can also effect retraction from a central position independently of the sailing attitude of the craft.

REFERENCES:
patent: 1705303 (1929-03-01), Nagy
patent: 3929085 (1975-12-01), Mason
patent: 3937166 (1976-02-01), Lindsay

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