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I might get 500W of solar panels on the top not 5000W. The panels will be only for emergencies. We usually cruise from marina to marina and recharge with shore power overnight. We like to pace ourselves and don't travel more than 3-4 hours a day. Luckily marinas are spaced at most 15-20...

Hello everyone, This is a great discussion and I will try to address some of the questions/issues that have been brought up. Yes, I should not be using the power equation for displacement hulls. My bad! In going back to Dave Gerr's book on Propellers I found he uses Crouch's equation for...

OOPs. I missed some of the other questions: I will probably add solar panels. I had 540 watts of flexible panels on my dory and that would give me about 2.8 mph in direct sunlight or four hours of sunlight were needed to run one hour at 5 mph. At most the panels were putting out about 320...

Thanks for the interest. I will try to answer some of these questions. In doing the research for my book I found an equation in Dave Gerr's book "The Propeller Handbook" that had four variables: speed, Length of waterline, shaft horsepower, and cruising displacement. If one knows any three of...

Hello everyone, I just want to introduce myself. I have commissioned a C-Dory 22 cruiser from NMI in Bellingham. I will be powering this boat with two electric E-propulsion Navy 3.0 motors. I am not a speed freak and will be cruising at hull speed. With 48 V 400 AH I expect a range of about...