I've been following this guy's iterations on the Darwin wind turbine and it has been fascinating, turns out the most efficient design so far is the most simple. I think we'll be building something like to bring air into the boat this summer through the saloon hatch.
https://www.youtube.com/watch?v=tknzpsaf4qg
@neauoire Fascinating! The mind reels with applications. Would love to try to put one high up with an incorporated venturi...