초록 ▼

An airfoil sail system for a boat having a mast is disclosed. The airfoil sail system includes a front airfoil which is pivotal about an axis defined by the mast. The front airfoil has leading and trailing edges, and is generally symmetrical about a vertical plane extending between its leading and t

An airfoil sail system for a boat having a mast is disclosed. The airfoil sail system includes a front airfoil which is pivotal about an axis defined by the mast. The front airfoil has leading and trailing edges, and is generally symmetrical about a vertical plane extending between its leading and trailing edges. A rear airfoil is also provided which has leading and trailing edges. The rear airfoil is generally symmetrical about a vertical plane extending between its leading and trailing edges. A base member having a traveller is provided for operatively coupling the front and rear airfoils so that rotation of the front airfoil about its axis effects a counter-rotation of the rear airfoil to permit adjustment of the camber of the airfoil sail system.

대표청구항 ▼

An airfoil sail system for a boat having a mast, the airfoil sail system comprising a front airfoil pivotable about an axis defined by the mast, the front airfoil having a leading edge and a trailing edge and being generally symmetrical about a vertical plane extending between the leading and traili

An airfoil sail system for a boat having a mast, the airfoil sail system comprising a front airfoil pivotable about an axis defined by the mast, the front airfoil having a leading edge and a trailing edge and being generally symmetrical about a vertical plane extending between the leading and trailing edges, the front airfoil comprising a plurality of telescoping front airfoil sections, a rear airfoiil having a leading edge and a trailing edge and being pivotable about an axis defined between its leading and trailing edges, the rear airfoil being gnerally symmetrical about a vertical plane extending between the leading and trailing edges, the rear airfoil comprising a plurality of telescoping rear airfoil sections, the front and rear airfoil sections telescoping to permit reefing of the front and rear airfoils, and operative coupling means for opeatively coupling the front and rear airfoils so that rotation of the front airfoil about its axis effects a counter-rotation of the rear airfoil about its axis to permit adjustment of the camber of the sail system.