I'm talking about wave propulsion, and this is a perfect machine, made by nature. See the "bottom", looks like a planning hull. I know some people talks about dolphins and displacement hulls, but a boat have not muscles; springs or rubber ropes are not muscles. I'm not an "expert", sorry, I'm just a beach boy, but my device works.
I suppose the flow of water around a displacement hull is important but not desiderable if is intended to use that flow of water like a propulsion.
I suppose the flow of water around a displacement hull is important but not desiderable if is intended to use that flow of water like a propulsion.