T-Pain Is On A Boat: Re: [Electric Boats] Re: house boat + hybrid

Thursday, November 4, 2010

Re: [Electric Boats] Re: house boat + hybrid

The problem with pontoons is they don't like extra weight, and adding a bunch of batteries is going to add that extra weight.

--- On Thu, 11/4/10, Bill Spires <spiresac@yahoo.com> wrote:

From: Bill Spires <spiresac@yahoo.com>
Subject: Re: [Electric Boats] Re: house boat + hybrid
To: electricboats@yahoogroups.com
Date: Thursday, November 4, 2010, 5:02 PM

Yep, I noticed. 8-10 knots is pretty fast and 3-4 hours would be a long time. This would require a very easily driven long hull. Maybe a pontoon boat with hulls shaped like a Hobie cat 18 only a lot longer. We have some house boats like that on the lake here. 6-8 knots for 5-6 hours would be easier to do and give you about the same range. Speed kills! (Power)

Capt Bill

From: danbollinger <no_reply@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Thu, November 4, 2010 4:45:19 PM
Subject: [Electric Boats] Re: house boat + hybrid

Bill, Did you notice? Aaron said he is planning on 8-10 knots for 3-4 hours. Dan

--- In electricboats@yahoogroups.com, Bill Spires <spiresac@...> wrote:
>
> How are you going to use the boat? If it's every now and then when it's calm
> wind and water you want to move it that's one set of issues. If it's I want to
> go cruise this thing days at a time that's another set of issues. Once you know
> the hull type, length and weight you can get an idea of how much power you need
> to move it. Even a small amount of power will push a large vessel at slow
> speeds but it takes a lot of power to accelerate or stop it. Wind and currents
> can also require a lot of power to overcome. I think that once you know how you
> plan to use the vessel and what the layout and size of it is the question of how
> to power it will be easier to answer. The other question would be what are the
> reasons you want to go electric. Just to give you an idea; 5 hp would push my
> Catalina 30 4.5 kts. in calm wind and water. Weight was about 15,000 lbs. 15-
> 20 knot winds on the nose would stop it dead or blow it backwards. At very low
> speeds the shape and type of the hull does not matter as there is so little
> resistance or skin drag. As speed increases the effect of resistance and skin
> drag increase in importance.
>
> Thinking out where you want to go and how you want to get there is half the fun
> of a voyage.
>
> Capt. Bill
>
>
>
> ________________________________
> From: Aaron Costic <aaron@...>
> To: electricboats@yahoogroups.com
> Sent: Tue, November 2, 2010 6:21:28 PM
> Subject: RE: [Electric Boats] Re: house boat + hybrid
>
>
> You are right, I was thinking of an all electric drive rather than a
> hybrid. With a gen set as a back up to charge the batteries. It would
> probably take a pretty hefty battery bank & 2 large electric motors to
> safely power the houseboat. Top speed isn't important. A range of 3-4
> hours at 8-10 knots would be adequate. Do you think the technology is there
> now?
>
> Aaron Costic
> Elegant Ice Creations
> www.ElegantIce.com
>