T-Pain Is On A Boat: Re: [Electric Boats] Re: Electric speedboat revisited

Monday, January 24, 2011

Re: [Electric Boats] Re: Electric speedboat revisited

AK, your project looks very feasible. Before Lithium batteries came along the advice against V type planing hulls was valid. This battery technology has totally changed everything. My only advice would be to keep your motor dry. Series wound motors will run fine submersed in fresh water, I know because I have forded rivers with our electric Series II-A Land Rover but salt water is another story. I believe your canals are salt water aren't they?

The controller is sealed. My only other suggestion is that you use a sealed main contactor or manual switch for your main battery disconnect to your battery pack and a fuse of course. I assume you will be using a battery management system for the Lithiums. You did not state the brand. Are they the Thunderskys? Good luck on your project and keep us posted. I am headed to Finland tomorrow for a conference and to look into opening an electric vehicle parts distribution warehouse there. I am currently in Croatia and will be spending a lot of time here in Europe over the next several years. I hope to meet some of you EV folks while here.

Roderick

              Roderick Wilde
         President EV Parts, Inc.
Your Electric Vehicle Parts Superstore
             www.evparts.com
          261351 Highway 101

Sequim, WA 98382

----- Original Message -----

From: ams_ak@ymail.com

To: electricboats@yahoogroups.com

Sent: Monday, January 24, 2011 1:32 PM

Subject: [Electric Boats] Re: Electric speedboat revisited

Oops, meant to introduce first:

AK from Amsterdam. A reader now ready to post, and build!

I have a classic speedboat that I love, but it is loud, smelly and dirty. Since I started riding an electric scooter I've had an EV grin that I now want to take to the water..

I have read the advice to forget about planing V hulls, but would like to make another run of it: hence revisited.

--- In electricboats@yahoogroups.com, "ams_ak@..." <ams_ak@...> wrote:
>
>
> Donor: Glastron v174 Bayflite
> Length: 5,30 m
> Beam: 2,20 m
> Weight: 850,00 kg
>
> coming out:
> Volvo B20 130 HP 350 lb/ 160 kg
> Gastank (80 L.) 220 lb / 100 kg
> Ballast (in bow) 110 lb / 50 kg
>
> total 680 lb / 310 kg
>
> Going in:
> Kostov 11" 192HV 178 lb / 81 kg
> 60*100Ah LiFePo4 462 lb / 210 kg
> Soliton1 controller n/a
>
> total 640 lb / 291 kg
>
> Though I admit the range will be limited, I feel the performance should match or exceed the original ICE setup. Including some other components the parts investment would be about 15.000 Euros. Not cheap, but interesting to note that a full tank runs at 150 Euros; depending on usage there could be a cost/benefit down the line (but this is not the point of the conversion)
>
> The boat would be used in and around the canals of Amsterdam, so mostly slow speed cruising (as enforced by our friendly waterpolice).
> When the situation allows: WOT!
>
> Q: The parts I will be using are not specified for marine use, pitfalls?
> Q: Though the Kostov has more or les the same RPM range as the ICE, I feel the prop should make more of the low end torque, design suggestions?
>
> And of course any other ideas & suggestions are welcome. If there is interest I will update with more information.
>
> Happy Boating!
>