Two good thoughts.
Clearly using combined propulsion/regeneration is an inefficient compromise, and that it is important to consider the loss to drag. I think the loss to drag is in many cases acceptable if the system efficiency gives the desired gain, and if having two separate systems is acceptable. Redundancy is good in any case.
Michael, thanks for noting Watt&Sea. I was not aware of how much work has been put into this by both the racers as well as cruisers. Lots of good information there and elsewhere, especially looking at the props those type of systems use.
Seems like a starting point would be to start with a simple trolling motor and aftermarket prop and see what you get and how much it slows the boat down. If that looks workable go to a brushless motor and prop combination for efficiency. A few amps over several hours is all I need.
John
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Posted by: John Acord <jcacord@gmail.com>
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