Prop Question

Akn6pk

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I have a 19 pitch 3 blade stainless prop on boat now. Boat has 350 I/O.
At 3500rpm will cruise at 24mph, at 4000rpm will do 30. Is there any
benefit going to a 4 blade?
 

skydiver

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prop

prop

From everything I've read about 4-blade props, they're better for getting you up on step (and keeping you up on step a slower speeds), but your fuel mileage will suffer.
 

Akn6pk

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Thank you for the info, I'll check it out. I kinda assumed fuel mileage
would decrease due to the increase in power usage to turn it.
 

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