Might need lots of pods and pilots.
Antoine took lots of crashes at full speed on the record day.
So how do they intend to change to supercavitating foil, which is the stated secret of their forthcoming success?
My shower inspiration is to sail a stuffed dolphin instead of a hard bottomed board.

Yoyo - you say the super-cavitating foils have lousy L/D -> fair enough, but have you seen the size of the foils? - think I can see one of them at the bottom of that white and orange, slightly dog-legged strut at the bow of the hull -> it's fr*ckin tiny.

Even with two of them in the water, that's an absurdly small amount of wetted surface area (and in this case seeing as it's super-cavitating, a lot of that surface area will be non-wetted) being punched along by about 18.2 sq. metres of high aspect sail.

So personally this particular contraption troubles me - if they can get this thing to work at low speed (i.e. up onto it's foils and super-cavitating by 40 knots), I wouldn't be surprised (once they've fiddled with it a bit) if it strolls straight through 50 and only starts to work up a bit of a lather around 60, quite possibly even 70...... and very, very possibly more.

Mind you, I've also no formal education in these matters.

Hmm....

Still early days, if they can throw money at the project for five years it might come good. I predict a top speed of 45 knot accompanied with much crowing and then dead silence.
Every change will affect every characteristic until they go mad.
For instance, changing M Endeavor rigging to carbon saved them 7 kg but their sail then broke due to the reduced flexibility.
At least my dolphin has had a few million years of development. They only slow down at 30 knots because cavitation hurts their tails. They need some sail assistance. :)

Hey Yoyo,

What are your thoughts on why super cavitating foils won't work? Is it because they are so much less efficient at sub-cavitating speeds so you can't get 'over the hump'?