Tuesday, December 13, 2011

[Electric Boats] Group Thoughts on 3.5kw system for 24', 5,000 lb sailboat

 

Happy Holidays one and all!

Have decided on a system for my 1963 Columbia 24 and would love to get the opinion of my fellow eBoat enthusiasts.

First, the sailboat is a semi-full keel, which has been soda-blasted clean of 47 years of old paint and epoxy coated (not a single blister by the way!). It has an attached rudder with an apature for the prop. LOA is 24'4", 8' beam, and displaces 5,000 pounds.

Powering the 3.5kw system from Electric Yachts of Southern Califormia will be a 48 volt, 120 amp-hour lithium battery bank; the 12 volt system will be powered off the mains via a 48v to 12v converter. In addition to the Regen capabilities (which I assume at 5% as the boat's theoretical maximum hull speed is something like 5.5 knots and too slow to really kick in) I am thinking about an Amp Air wind generator as there really isn't any space for solar panels. Of course, when tied to the grid there will be a 120 to 220 volt charging system in place.

As for the prop, I am thinking of having a 3 blade, over-pitched 10:12 fabricated by Deep Blue Yarch Supply – otherwise, I'll be using the original 10:8, 3 blade that was parred with the original 8hp diesel that died with Disco back in the '70s.

So, my open question to my fellow eSailors: Have I dotted the "I"s and crossed the "t"s?

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