Greetings from Montana.
A designer is finalizing design and specifications for a 24' canoe yawl, DWL about 22', centerboard with 28" draft with board up, and about 4600 pounds displacement. Hull is round-bottom with hull speed around 5-6 kts. Construction is sheathed strip plank.
I have been following this site for several months and have learned quite a bit, but not quite enough to feel comfortable designing an electrical propulsion system myself. Can someone suggest a system (or components) that I could forward to the designer so that its weight and specifications can be incorporated into the design?
The design requires about 400 pounds internal ballast which hopefully will be satisfied somewhat by the weight of batteries. Can battery weight by cell type be generalized?
I don't want to have a generator and likely won't experience may lee shores with reefs, rocks, and frothy white water. I would mostly be sailing on large lakes and reservoirs in the western US. But the prospect of the Inside Passage is always out there. I realize that constitutes a lot of lee shore.
I think one battery should be fine for house needs. A few lights, maybe music, and recharging computer batteries is all I contemplate. Would a wind generator or solar (or a combination) be adequate for house needs or more of a hassle than it may be worth?
I want a system that is almost idiot-proof to be used primarily to negotiate docks and for passing beneath bridges, but also sufficient to motor the boat for several hours at less-than-hull design speed. I'm not an electrician - I'm a biologist - and wonder whether a drop-in system makes the most sense for us electricity-challenged folks.
Thanks for any advice and let me know if I have overlooked something important with the information posted here.
Gary Davis
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