Re: [electricboats] Trolling Motor Propellers (was: propulsion Navy 3.0 Propeller Dimensions)

Thanks for sharing the EP Carry Video.  A close look at that prop compares with the same material as the Model Airplane Props I am purchasing from APC Propeller for our electric trolling motors.

10x4P-LH

• 10 inch diameter
• 4" Pitch
• "Pusher"
• Left Hand Pitch.

Make sure the prop pitch matches the rotation of your particular electric motor.

• When using the stock Minn-Kota prop 3.5 mph costs me 40 amps at 12.8 volts.
• When using the 10x4P-LH prop I get 5.1 mph at 31 amps

I am pushing a 17' Alumacraft CO-17 Square Stern Canoe with a battery/solar panel/pilot 350 Pound payload.

The props are consumable, meaning if you drag them across a gravel bar or hit a snag with them, most likely you will nick/warp/chip the prop.  But at $3.95 + shipping each, you can keep a tackle box full of them with you.  It takes me 4 minutes to swap a prop.

Thanks,

Ken

On Fri, Jan 24, 2020 at 4:40 PM John Kohnen <jkohnen@boat-links.com> wrote:

The early Electric Paddle outboards used model airplane propellers, and
the current models use props very like those on model airplanes:

http://www.electricpaddle.com/

Company founder Joe Grez did the entire 2019 Salish 100 using nothing
but solar power:

https://flic.kr/p/2gB9w6t

https://flic.kr/p/2gGQwZm

The trouble with putting better props on trolling motors is that the
submerged motor blocks a big part of the center of the prop...

A friend of mine got a couple of these plastic emergency props to try on
his twin 80 lb. thrust trolling motor drive, but the clearance under his
boat is so small he'll have to trim the diameter quite a bit:

https://www.ebay.com/p/10017019564

I think Merc has discontinues these...


On 1/24/2020 6:13 AM, Myles T wrote:
> I'd recommend looking at what has been done for propeller-driven
> pedal-power drives.  Model airplane style propellers have been used
> effectively for these to drive kayaks at around 10kts.
 > ...

--
John <jkohnen@boat-links.com>
Winter, a lingering season, is a time to gather golden moments, embark
upon a sentimental journey, and enjoy every idle hour. (John Boswell)

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