check those foils:

www.youtube.com/@americascup

Advanced boat foils are pretty similar on America's Cup edition in Barcelona, but no wing foil brand released something like that.

I'm conscious the program is different: while AC boards don't need to turn (ruder does it) and lift (flappers impulse the foil up ) their focus is on speed and glide.

why not copying AC foils ? are there physical differences like scale or speed (2-3x faster than wings) ??

FranP said..
check those foils:

www.youtube.com/@americascup

Advanced boat foils are pretty similar on America's Cup edition in Barcelona, but no wing foil brand released something like that.

I'm conscious the program is different: while AC boards don't need to turn (ruder does it) and lift (flappers impulse the foil up ) their focus is on speed and glide.

why not copying AC foils ? are there physical differences like scale or speed (2-3x faster than wings) ??

Do we know what their foil sections look like?

Their desing priority is speed and they struggle to avoid cavitation because of the high speed (ultra low pressure in the foil surface--> boiling water --> attached air & bubbles --> + drag and reduced lift)

Just check at those foil outlines, completely different than ours:

FranP said..


Their desing priority is speed and they struggle to avoid cavitation because of the high speed (ultra low pressure in the foil surface--> boiling water --> attached air & bubbles --> + drag and reduced lift)

Just check at those foil outlines, completely different than ours:

Current Levitaz Race Winning Frontwing:

The Starboard x 15 one design foils are very similar outline makes sense since they are designed by Martin Fischer who is an americas cup foil designer

Actually the foils on the new AC boats aren't parallel to the surface, visually they're at about 30 degrees!

And then there's our bulky inflatable wings vs their beautiful foiled sails. ??

Sailing-foiling is absolutely idiotic. The foiling moths are effectively controlled by mechanical computers and the AC boats are controlled by actual computers. Kiter/Wingers/SurfFoilers are the only sailers actually controlling the foil with our brains. I could care less what the AC is doing i quit sailboat racing 10 years ago for a reason!