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[Electric Boats] Re: Hunter 27 has electric option

David Goldsmith #16334 On Wed, Nov 24, 2010 at 6:12 PM, Eric <ewdysar@...> wrote: ? Hmmm. I just checked the Hunter website and it says the Hunter 27 waterline length is 23'7". But that's just a minor detail... It doesn't change the general results much. Ah, yep I see. I was going on the numbers published by Sail in their little write up, they've got the hull length that Hunter lists as the LWL and don't make mention of the LWL from the Hunter spec. Either way, its still got a pretty good water line for its LOA, of course all that changes once you start heeling or loading it down. I seem to remember a few years ago them selling a Hunter 26 that was the same boat but with an outboard instead of an inboard and some pretension to trailering, but I may be fuzzy on that. I do remember sailing our old '77 27 into St. Augustine coming back from the Bahamas and one of the brand new Hunter 27s sailing by us and asking us where we'd been (the Q flag was up and we had clearly been 'out there' for a while.) ? But we're obviously on the same page. BTW, the Elco drive certainly looks sturdy, I wonder how much that unit weighs. There's a picture on the ELCO 27e brochure that is linked to the Hunter 27 spec page on the Hunter US website. It looks like a serious little drive doesn't it! I'd really like to get a look inside that case. David ? Eric --- In electricboats@..., David Goldsmith wrote: > > I love it when you lay it out for us. I'd like to throw in a few points > however. The Catalina 30 actually has a shorter waterline, its listed as > 25', while the Hunter 27 has a full 27' waterline and the Hunter's > displacement is listed as about 7,600 lbs, while the Catalina weighs in at > 10,200. The current Hunter 27 really isn't in the same class as the older > Hunters of that length or the Catalinas. Its more of a stretched 25 footer > than a roomy cruiser. > > Those other numbers won't dramatically affect what usually works out to a > lot of factors like how the boat is loaded, the condition of the batteries, > and the weather and sea conditions. I wouldn't put it past them to be > quoting range and speed that assume you're sailing down hill:) > > I would assume, but take this with a grain of salt, that Hunter and Elco > would have this set up very well optimized and worked out. They've both got > extensive experience and complete control over every component so they > should be able to make a good show of things. We'll know as soon as someone > on the list buys one, any takers? > > David > > On Wed, Nov 24, 2010 at 3:26 PM, Eric wrote: > > > > > > > David, > > > > I ran some quick numbers to see if 20 miles at 6kts is reasonable from that > > battery bank. > > > > 214Ah @ 72V = 15.4kWh > > 80% depth of discharge = 12.3kWh usable... > > > > So I would believe 20nm @ 4.5kts from specific info that you posted from > > Hunter. That is very good performance from an electric conversion of this size.... > > > > Of course, these are all estimates based on experience collected here and > > with other electric conversions. Hunter's results may vary, the only > > effective way to find out is to put one of their 27e's through its paces. > > Let's hope that someone here buys one and gives a detailed performance and > > efficiency report. > > > > Fair winds, > > Eric > > Marina del Rey, CA > >

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