Watertight mast for sailing vessel

Details Watertight mast for sailing vessel Watertight mast for sailing vessel

1987-09-30

1990-03-06

Basinger, Sherman D.

Ships

Apparatus held by or attached to rider to control sailboard...

Foot strap means

114 90, B63B 1500

Patent

active

049056204

ABSTRACT:
A mast is provided which functions as both a mast and a righting lever which provides an immediate and powerful addition to the righting moment of a sailing vessel. The mast comprises a hollow longitudinal member adapted for carrying a sail. The longitudinal member contains one or more internal compartments which are sealed to prevent fluid communication to the interior of the mast.

REFERENCES:
patent: 377490 (1888-02-01), Mansfield
patent: 3585952 (1971-06-01), Head
patent: 3889045 (1975-06-01), Logsdon
patent: 4326478 (1982-04-01), Holmes
Marchaj, C. A., "Stability and its Effects on Safety," Seaworthiness, The Forgotten Factor, Int. Marine Publishing Co., 1986, pp. 88-99.
Marchaj, C. A., "Dynamic Metacentric Stability," Seaworthiness, The Forgotten Factor, Int. Marine Publishing Co., 1986, pp. 204-213.

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