Composite iso-stress sail structure and method for making

Details Composite iso-stress sail structure and method for making Composite iso-stress sail structure and method for making

2006-05-30

2006-05-30

Olson, Lars A. (Department: 3617)

Ships

Sail or control means therefor

Specific sail structure or arrangement

Reexamination Certificate

active

07051666

ABSTRACT:
A composite iso-stress sail structure comprises a sail body having an expected iso-stress line, when in a chosen sail shape and under a loading within a chosen range of loadings. An iso-stress element is laminated to the sail body material to create an iso-stress portion at a corner of the sail body. An edge of iso-stress portion is shaped to be at least generally parallel to the iso-stress line. The iso-stress portion extends from the corner along at least one of the sides of the sail distances greater than 20% of the lengths of the sides, respectively.

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“Sailcloth the power in the rig,” Yachts and Yachting, Apr. 12, 1999, pp. 33-39.

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