Re: [electricboats] advice not on sailing boat

Dear Bobkart,
thanks again. I understand your reasoning on the 24v / 2:1 reducing IF full throttle is for cruising speed at 600 rpm.
But I want full throttle to be hull speed, say about 1100rpm.

so that would either be 48v with 2:1, or, 24v without gear reduction.

That brings me back to the questions, would this me1003 engine be terribly inefficient at 500-600 rpm ?  Or what other parts influence the lower or higher voltage use (Peukert effect?)
I was finding the following numbers;

48	rpm per volt
RPM
450	slow	5	kmh	0,5	kw	9,375	volt	53,3	amp
600	rpm cruise	6,5	kmh	0,9	kw	12,5	volt	72,0	amp
975	reasonable fastest	9,5	kmh	2,85	kw	20,3	volt	140,3	amp
1050	theortaticly hull	10,5	kmh	3,85	kw	21,9	volt	176,0	amp

Thanks
elwin

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