albright1695
Well-known member
Pros and cons of both a 3-blade and a 2-blade trolling motor prop? Specifically on a Motorguide.
fender66 said:I like my 2 blade better. I have more thrust and can run my motor at lower speeds because of that. My spare prop is a 3 blade that I thought I'd like better but didn't....and yes, it's Motorguide.
Canoeman said:I have a metal 3 blade on my 109# 36 volt Motorguide and it is a work horse and tough as nails. Never used a 2 blade.. i guess my logic was one more blade is better at least with the larger system's.
fender66 said:I like my 2 blade better. I have more thrust and can run my motor at lower speeds because of that. My spare prop is a 3 blade that I thought I'd like better but didn't....and yes, it's Motorguide.
fender.. do you think you get more thrust because it has less blades to turn and it turns faster? I know it isnt to big of a pita to swap out.. you should try to gps the 3 n 2 blade at the exact same setting under same conditions.. id be interested in the outcome..
CodyPomeroy said:I asked the same question to a motor tech. regarding my outboard and he said it depends on the pitch of the blades.
fender66 said:I actually did GPS the two. Can't remember the speed difference, but the 2 blade was noticeably faster. Reason is that the 2 blade has bigger/wider blades and probably have more pitch to them.
Canoeman said:fender66 said:I actually did GPS the two. Can't remember the speed difference, but the 2 blade was noticeably faster. Reason is that the 2 blade has bigger/wider blades and probably have more pitch to them.
thats odd.. for the same amount of rpm with either 3 or 2 blades you'd think that the 3 would pull harder.. more surface area doing the same amount of rpm..
Canoeman said:So the 3 smaller don't have the same or more surface as the 2 larger?
the 2 must be huge..
Hmmm... wish i was good at math n stuff..
fender66 said:There is a definite difference in prop surface area if you compare 1 blade from each. Surface area total between both props (complete), may be pretty close... Still, my 2 blade is faster than my 3 so there is a difference.
Canoeman said:fender66 said:There is a definite difference in prop surface area if you compare 1 blade from each. Surface area total between both props (complete), may be pretty close... Still, my 2 blade is faster than my 3 so there is a difference.
Not arguing you that there is a difference.. at all. Just surprised i guess.
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