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3 or 4 blade prop - which is better ?

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  • Prophammer
    started a topic 3 or 4 blade prop - which is better ?

    3 or 4 blade prop - which is better ?

    which is better 3 or 4 blade prop, or does it even matter, as long as the right rpm is obtained ?

  • QBhoy
    replied
    Originally posted by Scott06 View Post

    He said don’t buy one prop for everything.... not ten props like you have....
    Haha. It’s an obsession!

    Leave a comment:


  • QBhoy
    replied
    Originally posted by achris View Post
    QBhoy


    Dear Mrs QBhoy,

    Please understand that propellers for a boating man are like shoes, hats and dresses are for you. You may not need as many as you have, or even wear them more than once, but they are essential to your mental health and well-being. The same is true of propellers.

    Yours faithfully,

    achris.
    iboats mod team (and well-being manager)...
    Haha. Brilliant. Alas...it did not have her convinced !

    Leave a comment:


  • dingbat
    replied
    I'm a firm believer in the right tool for the job, but at what point does having the "right" prop become a fetish?...lol

    Leave a comment:


  • achris
    replied
    Originally posted by QBhoy View Post

    Chris

    can you possibly just put that in writing and address it to my better half please ? See if you can get it on some sort of headed official looking paper please too.

    As the years go by, I’m finding it increasingly difficult to justify to her, any more than my 5 props currently. If you could help me squeeze one more, I’d be ever so great full
    good man !
    QBhoy


    Dear Mrs QBhoy,

    Please understand that propellers for a boating man are like shoes, hats and dresses are for you. You may not need as many as you have, or even wear them more than once, but they are essential to your mental health and well-being. The same is true of propellers.

    Yours faithfully,

    achris.
    iboats mod team (and well-being manager)...

    Leave a comment:


  • Scott06
    replied
    Originally posted by QBhoy View Post

    Chris

    can you possibly just put that in writing and address it to my better half please ? See if you can get it on some sort of headed official looking paper please too.

    As the years go by, I’m finding it increasingly difficult to justify to her, any more than my 5 props currently. If you could help me squeeze one more, I’d be ever so great full
    good man !
    He said don’t buy one prop for everything.... not ten props like you have....

    Leave a comment:


  • QBhoy
    replied
    Originally posted by achris View Post

    And there another secret... Don't try to buy a single prop to do everything, buy a couple of different ones that work for a particular task. And if you use the boat to pull skiers and tubers, buy one that is a couple of inches 'shorter' (less pitch), your engine and drive will thank you. And the boat will perform a ton better.

    Like Batman99, I prop to the expected conditions and task. If I'm local, heading out for a dive, or close in fish, the 4 blade goes on, for its weed-shedding properties. If I'm heading way out, or up to the Abrolhos Islands and want the better efficiency, the 3 blade Vengeance goes on... I'll put up with a couple of stops along the way to clear the weed...

    Chris.......
    Chris

    can you possibly just put that in writing and address it to my better half please ? See if you can get it on some sort of headed official looking paper please too.

    As the years go by, I’m finding it increasingly difficult to justify to her, any more than my 5 props currently. If you could help me squeeze one more, I’d be ever so great full
    good man !

    Leave a comment:


  • achris
    replied
    Originally posted by batman99 View Post
    Loaded down with extra weight, tubing &/or in the weeds with motor tilted slightly up, I prefer 4-blade. But general cruising on long distance tours with 3 people, I like to use 3-blade. This works for me.
    And there another secret... Don't try to buy a single prop to do everything, buy a couple of different ones that work for a particular task. And if you use the boat to pull skiers and tubers, buy one that is a couple of inches 'shorter' (less pitch), your engine and drive will thank you. And the boat will perform a ton better.

    Like Batman99, I prop to the expected conditions and task. If I'm local, heading out for a dive, or close in fish, the 4 blade goes on, for its weed-shedding properties. If I'm heading way out, or up to the Abrolhos Islands and want the better efficiency, the 3 blade Vengeance goes on... I'll put up with a couple of stops along the way to clear the weed...

    Chris.......

    Leave a comment:


  • batman99
    replied
    Loaded down with extra weight, tubing &/or in the weeds with motor tilted slightly up, I prefer 4-blade. But general cruising on long distance tours with 3 people, I like to use 3-blade. This works for me.

    Leave a comment:


  • Prophammer
    replied
    I have no dissatisfaction or performance issues just curious about propellers

    Leave a comment:


  • Scott06
    replied
    Originally posted by Texasmark View Post

    I bought this 2002 Crestliner 1750 Fish Hawk and Merc 2 stroke 115 back in June 2019. To my dismay, after running through 4 new props was that the PO didn't have it over propped, the engine had some quirks that had to be worked out and I mistook the quirks for too much prop since it wasn't really telling me it had the flu. Getting them cleaned up I put the original prop back on and it ran just fine.
    Also a good point make sure everything is up to snuff before tossing parts at it. In my case I had just repowered, so very thing was working ok. None of my trials were wasted, just further honing in and lowering slip %

    Leave a comment:


  • Sea Rider
    replied
    Originally posted by Prophammer View Post
    No dissatisfaction , just rampaged curiosity, 16' fiberglass center console deep v- 14° dead rise , 70 hp fourstroke engine
    To take the max out of that motor, some more tech info is needed, such as :

    What's the boat's max passenger and HP rated for according to the tech plate if having one ?

    What's the motor brand model ?

    What's the max wot rpm achieved as usually loaded ?

    What's the number of blades and current prop pitch in use ?

    Happy Boating

    Leave a comment:


  • Texasmark
    replied
    Originally posted by Scott06 View Post
    I went through four props on my current boat, really like two of them, sold the rest. What prop and pitch are u running now ? A basic three blade black max type aluminum?
    I bought this 2002 Crestliner 1750 Fish Hawk and Merc 2 stroke 115 back in June 2019. To my dismay, after running through 4 new props was that the PO didn't have it over propped, the engine had some quirks that had to be worked out and I mistook the quirks for too much prop since it wasn't really telling me it had the flu. Getting them cleaned up I put the original prop back on and it ran just fine.

    Leave a comment:


  • Scott06
    replied
    Originally posted by Prophammer View Post
    No dissatisfaction , just rampaged curiosity, 16' fiberglass center console deep v- 14° dead rise , 70 hp fourstroke engine
    I went through four props on my current boat, really like two of them, sold the rest. What prop and pitch are u running now ? A basic three blade black max type aluminum?

    Leave a comment:


  • Prophammer
    replied
    No dissatisfaction , just rampaged curiosity, 16' fiberglass center console deep v- 14° dead rise , 70 hp fourstroke engine

    Leave a comment:

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