Re: [electricboats] Quest for 2X Hull Speed

I retrofitted an old Johnson 9.9hp with one of these:

Motor eléctrico sin escobillas DC Kit completo de 48 V 2000 W 4300 RPM motor de alta velocidad, con controlador de 33 A 15 Mosfet, pantalla de batería LCD de acelerador, scooters eléctricos, moto, motor de transmisión media, pieza de bricolaje

Motor eléctrico sin escobillas DC Kit completo de 48 V 2000 W 4300 RPM motor de alta velocidad, con controlador de 33 A 15 Mosfet, pantalla de batería LCD de acelerador, scooters eléctricos, moto, motor de transmisión media, pieza de bricolaje Motor eléctrico sin escobillas DC Kit completo de 48 V 2000 W 4300 RPM motor de alta velocidad, con controlador de 33 A 15 Mosfet, pantalla de batería LCD de acelerador, scooters eléctricos, moto, motor de transmisión media, pieza de bricolaje

Far less expensive than any of golden motor's offerings, although it did require some thought and skill to marry the two into a workable platform. 

On Mon, Oct 26, 2020 at 10:30 AM, cpcanoesailor via groups.io

<cpcanoesailor=yahoo.ca@groups.io> wrote:

Interesting project. Thanks for sharing.

I use a Haswing Protruar 1.0 motor with an APC 11x6 tractor prop. I figured out that I could mount the control head backwards, so the prop is facing forwards. I added a spinner in front of the prop to minimize drag. The only noticeable drag now is from the vertical shaft. I typically run the motor at about 50% power, about 300W, giving 3-4 knots boat speed (multihull, some drag). I only notice cavitation if the water gets quite choppy.

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