A New Paradigm for Cruising

Diesel Electric Drives-Prop Efficiency

I wonder if you have any opinion on electric propulsion? I am considering re-powering with a Solomon system. I have a 30hp Westerbeke diesel at this point. I am cruising full time with lots of hours at anchor. Comparing prices, diesel/electric, is a definite apples/oranges situation, with the result being that I may decide based on my dislike of the internal combustion engine. Certainly would appreciate your reaction to the this concept used in a cruising sailboat. Ross

Hi Ross: I have no direct experience with diesel electric. However, the concept is sound–many commercial and navy ships are powered this way. The key with taking advantage with a sailboat is prop efficiency. I.e. the ability to turn a large prop slowly. But of course this brings in other issues like prop drag (even if it is as folder or feathering), tip clearance, etc. Let us know how it turns out of you go this route. Some before and after data would be great! Steve


Posted by Steve Dashew  (November 30, 1999)




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