Thursday, December 8, 2016

Re: [Electric Boats] Re: The guy with the electric rowboat

 

Thank you Tom
Now I get it!
Yet the manufacturer puts  the exact same propeller on both their 55 and 86 pounders.
You would think they would have different pitch and and/or diameters available for their props to take advantage of the extra speed potential of the 24-36 volt motors for people in lighter boats who want to go faster?  Is my thinking still suspect?

Bruce

Sent from my iPad

On Dec 8, 2016, at 2:56 AM, Hannu Venermo gcode.fi@gmail.com [electricboats] <electricboats@yahoogroups.com> wrote:

 

And the 12V will lose a lot of power, just from being 12V.
Low-voltage DC is pretty inefficient.

On 08/12/2016 05:10, boat_works@yahoo.com [electricboats] wrote:
> The 12V motor will run a bit more than twice as long from the parallel
> configuration than it would with a single battery.
>
> The 24V motor with the series configuration will have the ability to
> provide more thrust than the 12V motor, but will consume more power
> when run "wide open".
>
> At lower "throttle" settings the power consumption of either motor
> would the same.
>
> So do you want the extended run time of the 12V motor and the parallel
> battery bank, or do you want the greater thrust of the 24V?
>
> And FWIW, I can't see a 11' v-bottom hull weighing over 400 lbs
> getting anywhere near 13 MPH ( barely up on a plane) with ANY trolling
> motor.
>
> -Tom

--
-hanermo (cnc designs)

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Posted by: bruce thomas <mosslandingcreatures@gmail.com>
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