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Old 02-05-2017, 09:50   #31
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Re: Electric motor options for inflatable dinghy

These guys are using an unmodified minn kota 55 in a very similar dink to mine -
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Old 02-05-2017, 15:19   #32
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Re: Electric motor options for inflatable dinghy

I've driven an aluminum boat (12 foot) with a minn Kota 55 and it's got plenty of power. Battery is limiting step but I imagine a Li ion battery + minn Kota is still prob cheaper than torqeedo


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Old 02-05-2017, 21:28   #33
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Re: Electric motor options for inflatable dinghy

Here is a credible choice. Seems on paper they have better engineering and execution than others, but I have not had the chance to try one yet, but hopefully soon.

NAVY | ePropulsion
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Old 02-05-2017, 21:47   #34
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Re: Electric motor options for inflatable dinghy

oops, sent the last post before I was finished




Here is a Youtube showing the noise level difference between the Epropulsion and Torqeedo. Small indicator of quality, but still....

I suspect the dramatic noise level difference may be due to the hub of the Epropulsion being fluid filled, as it should be.

The Torqeedo is not fluid filled, but the more important difference IMO is not the effect on noise level, it is that once the Torqeedo hub heats up ( and they certainly do) water gets sucked back past the seals by the negative pressure as the space cools down. Then bad things happen, as many unhappy Torqeedo owners will attest.
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Old 03-05-2017, 01:30   #35
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Re: Electric motor options for inflatable dinghy

Quote:
Originally Posted by Peregrine1983 View Post
Hah. That's amazing.

A panel of that size would need a charge controller. With the small amount I use my dink and the short distances I travel on it I am nearly positive I'd be happy with a Minn Kota Riptide with a swapped prop, a cheap West Marine deep cycle battery, and a 6w Ganz solar panel keeping it topped off. I had great luck with the Ganz 6w on my old sailboat's start battery.
The picture is not my dinghy, it is a friend's.

My solar panel is 50 watts and the controller (currently a Morningstar Sunsaver) is installed inside the battery box.

When trolling there is a net gain in current. The Riptide 55 consumes about 1 amp at trolling speed.
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Old 06-05-2017, 21:13   #36
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Re: Electric motor options for inflatable dinghy

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oops, sent the last post before I was finished









Here is a Youtube showing the noise level difference between the Epropulsion and Torqeedo. Small indicator of quality, but still....



I suspect the dramatic noise level difference may be due to the hub of the Epropulsion being fluid filled, as it should be.



The Torqeedo is not fluid filled, but the more important difference IMO is not the effect on noise level, it is that once the Torqeedo hub heats up ( and they certainly do) water gets sucked back past the seals by the negative pressure as the space cools down. Then bad things happen, as many unhappy Torqeedo owners will attest.


How do the prices of the epropulsion units compare to the Torqueedo?

Thanks
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Old 06-05-2017, 22:23   #37
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Re: Electric motor options for inflatable dinghy

Torqueedo must be feeling sincerely flattered!
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Old 07-05-2017, 10:46   #38
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Re: Electric motor options for inflatable dinghy

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The picture is not my dinghy, it is a friend's.

My solar panel is 50 watts and the controller (currently a Morningstar Sunsaver) is installed inside the battery box.

When trolling there is a net gain in current. The Riptide 55 consumes about 1 amp at trolling speed.
How did you measure that? I had a 35 pound thrust I believe it used 10 amps at Full Throttle pushing an 8-foot Walker Bay at reasonable speed.
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Old 07-05-2017, 10:48   #39
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Re: Electric motor options for inflatable dinghy

Rule of thumb is 1amp per 1 lb thrust.
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Old 07-05-2017, 11:18   #40
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Re: Electric motor options for inflatable dinghy

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How did you measure that? I had a 35 pound thrust I believe it used 10 amps at Full Throttle pushing an 8-foot Walker Bay at reasonable speed.
With a clamp multimeter.

10 amps at full throttle doesn't make sense for a 35 lb thrust motor.
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Old 07-05-2017, 11:28   #41
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Re: Electric motor options for inflatable dinghy

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With a clamp multimeter.

10 amps at full throttle doesn't make sense for a 35 lb thrust motor.
Well I guess I was only going halfThrottle.Click image for larger version

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And this coincides pretty accurately with running time on a fully charged battery.
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Old 07-05-2017, 11:40   #42
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Re: Electric motor options for inflatable dinghy

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Rule of thumb is 1amp per 1 lb thrust.
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And by the chart it looks like the 80lb thrust is using two batteries(24v) when you double the voltage, half the amperage
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Old 10-05-2017, 13:49   #43
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Re: Electric motor options for inflatable dinghy

I use that exact minnkota you put up on my inflatable tender and it feels great. Use 12v marine battery to power and pop battery and motor into boat. If it were real windy in your face idk but i like it. Definitely better with a robustly charged battery. I got my motor at walmart for 99 bucks in waukegan il.
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Old 22-05-2017, 20:13   #44
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Re: Electric motor options for inflatable dinghy

I have one on my inflatable and use AGM deap. Cycle wheel chair batteries which hold there power better in cold temperature and they're sealed and EZ to move about. Im very happy with the whole setup. Good luck I think it's a good idea
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Old 02-01-2018, 06:18   #45
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Re: Electric motor options for inflatable dinghy

I recently purchased an Avon Compact RIB and an ePropulsion Spirit 1.0 electric outboard to use as our backup dinghy. So far, I’m very happy with both.
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