Joined
·
50,578 Posts
I saw a ship with computer-controlled sails which looked like aircraft wings some 20 years ago. I wonder what happened to it?This is a neat display of technology, however, there is another form of renewable boat propulsion out there. It's cheaper, very reliable and has a bit of a track record. It's called sail. And unlike this toy, it can and has been put to practical use for a while.
how can a prop that spends half it's time out of the water be more efficient? do you mean more efficient than a submerged prop on the surface?it's called a surface piercing prop and has higher eff.