|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||114/102.13; 114/102.16; 114/102.29; 114/039.21; 114/039.29; 114/039.31|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 3 인용 특허 : 5|
A steerable wing-type sail system for a wind powered craft. The system includes first and second secondary airfoils and that are spaced outwardly to the sides of the plane of the main wing, and that are positioned rearwardly of the trailing edge of the wing. The secondary airfoils are selectively pivotable so as to steer the main wing in one direction or the other. The main wing is also provided with a pivoting flap at its trailing edge, which pivots simultaneously with and in the same direction as the secondary airfoils. The secondary airfoils are carri...
What is claimed is: 1. A sail system, comprising: a substantially rigid main sail for extending generally in a vertical plane; means for supporting said main sail for pivoting movement about a substantially vertical axis; first and second secondary airfoils mounted to support members extending from said main sail so that said secondary airfoils are spaced outwardly from said plane of said main sail on opposite sides thereof; and means for selectively pivoting said secondary airfoils in first and second directions relative to said plane of said sail, so ...