Recent content by hwsiii

  1. hwsiii

    Propping 18' Checkmate with Tower

    Re: Propping 18' Checkmate with Tower sludgeguy68, these numbers backup exactly what spike is telling you, so I would listen to what he says. H
  2. hwsiii

    how much can you do with prop options

    Re: how much can you do with prop options limit, sorry it has taken me so long to get back with you, but I went fishing with my brother today and had a great time catching rat reds and speckled trout. The following dialog refers to the pictures in my post number 28 in this thread. Lets...
  3. hwsiii

    Please help me find my revs

    Re: Please help me find my revs hundee, I show your Gear ratio to be 2.31, if this is true then my numbers are correct, so please check this and verify by turning the flywheel 1 complete revolution and counting the revolutions of the prop at that time. I see where you say you have double...
  4. hwsiii

    how much can you do with prop options

    Re: how much can you do with prop options I will also try to better explain why there can be significant differences in prop diameter as well as why you have to know the reasons behind the differences in hub sizes in relationship to diameter and why that can be extremely important when you are...
  5. hwsiii

    how much can you do with prop options

    Re: how much can you do with prop options limitout, as smoke mentioned "EVERYTHING done with prop design is a tradeoff ", since you appear to really want to understand more about what prop rake is and its affects on particular boat and motor combinations I will try to make it easier for you to...
  6. hwsiii

    how much can you do with prop options

    Re: how much can you do with prop options limitout, I would not blame the dealer for this problem, as the prop does reach the correct RPM's and many dealers don't understand blade geometry any better than you do. Their real concern is that the motor does not fall below or above the recommended...
  7. hwsiii

    how much can you do with prop options

    Re: how much can you do with prop options limitout, " I was thinking if rpms dropped with the 15 pitch and I went from a 11 1/4" wheel to a 10 1/2" wheel it might have close to the same rpms but give me more speed? how much does decreasing wheel size raise rpm's? maybe im not thinking about...
  8. hwsiii

    Prop upgrade - how to choose

    Re: Prop upgrade - how to choose region4, "48 88440A-4 19 - has some cup, clean, sharp, but not perfect", it is my opinion that using this prop to try and make an intelligent decision to decide what pitch you might need to cut your RPM's to the manufacturers guidelines is definitely an error...
  9. hwsiii

    Something on the 150 -200 rpm per inch of prop pitch change

    Re: Something on the 150 -200 rpm per inch of prop pitch change Mark, you are definitely right, it ALWAYS goes back to prop blade GEOMETRY, pitch is a starting point ONLY. Pitch can be a useful guideline, but mainly only in the same Make and Model of prop. But blade geometry and motor height...
  10. hwsiii

    Turbo TXP on a sport's cuddy

    Re: Turbo TXP on a sport's cuddy Gunner, that prop was designed just like DH said "DH has pointed out it's over the barrel exhaust prop". And with that being said, if your exhaust was not a thru hull exhaust that prop would react very differently than it is now. With some exhaust passing around...
  11. hwsiii

    Could these lights be causing my EXCESSIVE prop slip?

    Re: Could these lights be causing my EXCESSIVE prop slip? Keith, I am hoping very much that is at least a major part of the problem, as that is a quick easy fix, that requires very little money and time as well. Because I am 90% sure that we have air that is going directly to the prop and if we...
  12. hwsiii

    Could these lights be causing my EXCESSIVE prop slip?

    Re: Could these lights be causing my EXCESSIVE prop slip? Keith, I do detect a problem with the bottom of the transom right in front of the prop, I have marked the area in Red so you can see it easier. I would appreciate it very much if you would take about 4 pictures, 2 from directly...
  13. hwsiii

    New Solas Amita 4 blade for 17' whaler and 70 hp johnson 2 stroke?

    Re: New Solas Amita 4 blade for 17' whaler and 70 hp johnson 2 stroke? Chris, Spike is usually very good when he makes his recommendations. But if you really want to get the maximum speed and performance out of your setup then we both definitely need more information. We need gps readings...
  14. hwsiii

    Prop Slip and Blade Surface Area

    Prop Slip and Blade Surface Area Prop Slip is conceivably one of the most misunderstood aspects of prop theory there is. Prop slip has nothing to do with the actual efficiency rating of a particular prop in a model or series of props, it is in fact the speed difference between what the...
  15. hwsiii

    Open letter of apology to 45Auto and Everybody Else

    I want to apologize to you specifically 45Auto for our discussion and some of my statements about maximum speeds attained using higher pitched props for attaining fuel economy while cruising. I am not positive that increasing pitch always results in better fuel economy while cruising with all...
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