Kipawa was a prop I had on both a 40 and 55 Minn K. a few years ago. I will probably get another one, as I let that first one go because laying the motor on its side could warp the prop balance. Bad for motors, even if you can't feel the vibration. One boat has a well for that 55, and doesn't need the weed cutting properties as much. All it does is basically give more blade area, good for wind and wave action is the extra you get. That will let you turn down the power a bit, but might be a tad bit high draw at full throttle. Something about no free lunch with electric, more power uses more amps. Matching power to hull speed at reasonable amps, enough to cover the days run between charges, with 40 or 50% battery in reserve gives the best battery life and safe reserve power options -- in my opinion.
later, Cal
Sent: Wednesday, June 17, 2015 10:34 AM
Subject: Re: [Electric Boats] High Voltage in a canoe
Regarding props for Minn Kota you might look at http://www.kipawapropellers.com . 10-15% speed improvement is claimed. I have no personal experience. I expect there is a reasonable limit to the increase in pitch you can achieve with Minn Kota and similar trolling motors. I think they are designed to turn at relatively high rpm with low pitch weedless props; fine for achieving trolling speeds of a very few knots. Too much pitch and you could overload the motor causing burnout or overload protection action by the controller.
Ned
On Jun 16, 2015, at 9:39 AM, oak oak_box@yahoo.com [electricboats] <electricboats@yahoogroups.com> wrote:I would be shocked but thrilled if a Torqeedo prop fit any other trolling motor. I'm assuming someone (possibly with good 3-D printer skills??) will need to come up with a slick way to adapt them.But I'd really like to see what happens if you do (does it burn up the motor, or just double the performance?).John
From: "Tommy Boy tommy033107@gmail.com [electricboats]" <electricboats@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Monday, June 15, 2015 2:04 AM
Subject: Re: [Electric Boats] Re: High Voltage in a canoeSerenity Solar CanoeI am running the Minn Kota Endura Max 45 that they claim can run up to 5 times longer the the regular Minn Kota motors. PWM is what I think the control design was called. I was not awareTorqeedo made a prop that would fit a Minn Kota ! Does it produce more speed with lower amp draw? That is what I am looking for now :-) Time to go search for this propeller :-)TommyOn Wed, Jun 3, 2015 at 3:40 AM, thall90024@yahoo.com [electricboats] <electricboats@yahoogroups.com> wrote:
I think I better stick with DC only and not try to go both ways. I looked at your solar canoe and it looks really cool. Are you using the Minn Kota with the digital maximiser " battery management system" ?Have you tried installing the Torqeedo prop on your motor, that would seem to be the perfect setup. The Torqeedo travel prop is as the Germans are fond of saying "Superior Technology".Thanks for all the imput.
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Posted by: "cal" <h20dragon@centurytel.net>
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