Which prop is right for my 25 Lb thrust Trolling motor

[thudpucker]

Awrite for my Barn!!!!
I found enough parts n' pieces in my Barn to make this thing work. If you have a big Barn and NEVER throw anything away, you'll have what you need if you look long enough and stir up enough stuff!


I found some stainless Cotter pin, some stainless shaft stock to make shear pins with, and two props.
Both fit. I've never seen one of these motors in action so I don't know which prop. Here's a slide show. Look and tell me if one prop or the other is right, or if I have to do something different yet?

[carl mccall]

i keep multiple props for different apps. some give more thrust some are weedles and believe it or not some are quieter under water i even have one that just wont kill my batteries

[pistnbroke]

The one that makes it draw about 20 A more and you are overloading it .

[thudpucker]

LOL, C'mon PB, how'm I gonna know that?
If I see gas bubbles coming up off that little motor I'll know its generating enough heat to separate the Hydrogen and I'm about to set the whole lake on fire.

[pistnbroke]

you measure it with an ammeter .......what planet are you on ????

[thudpucker]

Yes I know about them air little Amp thingies.

I have a good Fluke meter I could do that with.
I'd set it on 10A....ooops, thats just not high enough eh?
Its as high as my FLuke will go without an Amp-clamp which is a mite expensive when I can get by with just watching for bubbles.

I did have all that stuff when I was working. I had a clamp-on meter that would read up to 300 amps to check starter draw. That would work. Its just that I havent seen that meter in nearly 10 years.

I'll have to go with a good SWAG.