Didn't the Nacra F18 have the aspect ratio reduced on its foils after a couple of seasons, or was it just the thickness that changed?
The nacra F18 design switch to a a lower aspect ratio daggerboard design halveway through it's production period.
It went from 198x1000 mm = aspect ratio 5.05 (same board as the Inter 18) to 255x1000 mm = aspect ratio 3.92
Is this the final act in the separation?
Looks like that to me.
Wouter