12 july 2005
DESCRIPTION
Ultimate Sailing. Stephen Bourn. 12 July 2005. www.wingbornehydrofoil. com. Velocity triangle. Boat velocity. Apparent wind angle 30 . True course. b. g. Apparent wind. True wind. Aero force. Hydro force. e A - aero drag angle. e H - hydro drag angle. f A - aero elevation - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/1.jpg)
12 July 2005
Ultimate SailingUltimate SailingStephen Bourn
www.wingbornehydrofoil.com
![Page 2: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/2.jpg)
![Page 3: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/3.jpg)
![Page 4: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/4.jpg)
![Page 5: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/5.jpg)
![Page 6: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/6.jpg)
Apparent windangle 30 True
course
True wind
Apparentwind
Boat velocityVelocity triangle
![Page 7: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/7.jpg)
Gravity force
– apparent wind angle
H - hydro drag angle
H - hydro elevation angle
A - aero drag angle
A - aero elevationangle
Aero force
Hydro force
Air velocity
Water velocity
![Page 8: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/8.jpg)
True wind velocity
IH – projectedhydro drag angle
IA – projectedaero drag angle
A
A
HH
H
H
A
A
cos
sinarcsin
cos
sinarcsin
– true course
![Page 9: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/9.jpg)
![Page 10: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/10.jpg)
![Page 11: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/11.jpg)
![Page 12: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/12.jpg)
![Page 13: 12 July 2005](https://reader036.vdocument.in/reader036/viewer/2022062309/568157bc550346895dc53f17/html5/thumbnails/13.jpg)
H
H
A
A
cos
sinarcsin
cos
sinarcsinmin
speedmax