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Thanks
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Location: Maine Township, MN | What HP? |
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Location: minocqua, wi. | i prefer ride and range over top-end so 4-blade is my preference |
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| 50 Honda |
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Posts: 373
Location: Maine Township, MN | Personally, I'd stay with a 3 blade. You would really lose some power transfer going to a 4 blade unless you had more horses to harness. |
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Location: Elk River, Minnesota | Hiya,
In all honesty, power transfer is Higher with a 4 blade at the same RPM as a comparable 3 blade. Problem is, a 4 blade will lower your rpm due to the extra blade, which helps the prop stay hooked up to the water better. More blade surface area means more friction between water and prop, thus better thrust and better handling. a 4 blade will be slower than a 3 blade in most cases since a reduction in pitch is usually needed to go to a 4-blade prop.
On a 50hp motor, I would say you would not need a 4 blade, unless the motor is on a big pontoon. There, speed is not an issue....forward thrust is. On a 16 foot boat, the 3 blade will do well, and you can find various 3-blade designs to try out and get the one that best suits how you want the boat to perform.
Steve
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Posts: 397
| I talked to the yamaha rep about going to a stainless prop on a 75. I was told save the money because the amount of torque isnt there to justify a ss prop. also the same thing on a 4 blade prop. |
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Posts: 373
Location: Maine Township, MN | bigred2198 - 3/6/2013 4:59 PM
I talked to the yamaha rep about going to a stainless prop on a 75. I was told save the money because the amount of torque isnt there to justify a ss prop. also the same thing on a 4 blade prop.
True statement. |
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Posts: 574
| nocturnalmotors - 3/7/2013 9:00 AM
bigred2198 - 3/6/2013 4:59 PM
I talked to the yamaha rep about going to a stainless prop on a 75. I was told save the money because the amount of torque isnt there to justify a ss prop. also the same thing on a 4 blade prop.
True statement.
Just sold a tiller with a 75 honda(pretty similar).. Stainless prop made a big difference for me..
Better hole shot, and a few more mph..
The right around 3 mph extra I got was well worth the $300 I spent on on a SS prop.. |
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4 Bladed or Three bladed Props