Here's something interesting someone is doing with Torqueedos. This guy is going to push a 48' trimaran around the great loop with two of them. I spoke with him and "he says" that he can get the boat up to 10mph with them and cruise real time off 2.5 kW of solar power at 6 mph. The boat is apparently very light for it's size and only draws 18". He's using agm batteries and had quite a negative opinion of Lithium Ion technology when we talked about his design. Not sure why.
http://
From: sirdarnell <sirdarnell@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Saturday, August 18, 2012 10:23 AM
Subject: [Electric Boats] Re: Electric Outboards?
To: electricboats@yahoogroups.com
Sent: Saturday, August 18, 2012 10:23 AM
Subject: [Electric Boats] Re: Electric Outboards?
http://www.all4solar.com.au/
--- In electricboats@yahoogroups.com, "luv2bsailin" <luv2bsailin@...> wrote:
>
> John,
> I really don't think you'd be happy with any of the electric outboards on the market. Sure you could motor along in mild conditions, but for situations like backing into a 20MPH wind that you mentioned I think you'd be underpowered. Keep in mind you have a lot of windage from the hull and rig to overcome, besides the water drag and inertia.
> If you already have an inboard, why not just replace it with an electric motor and use your existing shaft and prop?
> Jim McMillan
>
> --- In electricboats@yahoogroups.com, oak <oak_box@> wrote:
> >
> > Yes, I've heard that too. Of course, it would be interesting to hear the context - was it on an inland lake, or out in open conditions with current and large waves?
> > Â
> > I can tell you my Atomic 4 gas engine with 30HP is wayyy more than I need on the lake. I cruise at 5-6mph with the throttle very low. And I have to take it out of gear in the marina to slow down enough when I'm nearing my slip (and still hit reverse to stop).
> > Â
> > John
> >
> >
>
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