New prop design.....interesting.

Discussion in 'General Discussion' started by Quint4, Oct 14, 2019.

  1. Quint4

    Quint4 Well-Known Member TECHNICAL Contributor

    Oct 6, 2006
    S.W. Ohio
    330 Sport Bridge (Sold)
    5.7 MPI 350 Merc Bluewaters
    Could this be the future and solve all our problems? (World peace is near)

     
    Zim and JC3 like this.
  2. spikedaddy99

    spikedaddy99 Well-Known Member GOLD Sponsor

    Jun 11, 2008
    Prentice, Wi
    2005 500 DB
    QSM-11
    Wow. Pretty interesting to say the least. Lower speed to plane. M
     
  3. Little Ducky

    Little Ducky Well-Known Member

    Jun 5, 2017
    Dickson, TN / Chattanooga, TN
    1998 290 Sundancer
    Twin EFI 5.0L w/Alphas
    Kohler 4kW
    It will be interesting to see the pricing vs. efficiency for the pleasure boater.
     
  4. Golfman25

    Golfman25 Well-Known Member

    720
    Sep 12, 2009
    IL
    281
    V8
    Yeah, without price comparison it's just interesting.
     
  5. OllieC

    OllieC Active Member

    829
    Mar 11, 2013
    MinniSoCold
    Sara Belle
    2005 Weekender 215
    Mercruiser 5.0 mpi, Bravo III
    I wonder how that would work in a Bravo 3 setup?
     
    310sundancer likes this.
  6. BOB TYSON

    BOB TYSON Active Member

    260
    Oct 5, 2017
    sarasota, fl
    2005 460 Sundancer
    Cummins 480 CE
    my thoughts as well.
     
  7. dwna1a

    dwna1a Well-Known Member GOLD Sponsor

    Apr 23, 2012
    James River
    88 Weekender 300 "Seahorse"
    Twins 350
    Can it be tuned up after a hit to the prop?
     
  8. SeedyCharacter

    SeedyCharacter New Member

    1
    Oct 14, 2019
    240 SunDeck 2007
    350 Mag w/Bravo III
    I wondered how it compared to a Bravo 3?

    And I had assumed that plane speed was more a function of the hull design than the prop.
     
  9. Strecker25

    Strecker25 Well-Known Member

    Nov 20, 2014
    Rochester, NY
    1998 290 Sundancer
    Twin 5.7EFI/Alphas, Kohler 4kw
    I’ve always understood it to be more a function of slip, especially in heavy cruisers. Slip must be considerably less on these props versus their traditional counterparts since they tested very similar pitch
     
  10. Quint4

    Quint4 Well-Known Member TECHNICAL Contributor

    Oct 6, 2006
    S.W. Ohio
    330 Sport Bridge (Sold)
    5.7 MPI 350 Merc Bluewaters
    Screen Shot 2019-10-14 at 9.22.53 PM.png
     
  11. Quint4

    Quint4 Well-Known Member TECHNICAL Contributor

    Oct 6, 2006
    S.W. Ohio
    330 Sport Bridge (Sold)
    5.7 MPI 350 Merc Bluewaters
    Pretty amazing results.
     
  12. b_arrington

    b_arrington Well-Known Member GOLD Sponsor

    Feb 21, 2007
    Setauket, NY
    2018 Back Cove 34
    Cummins QSB 6.7 480
    It was glossed over a bit, but it seems like a significant contribution to prop inefficiency is the vortexes generated off the tips of the blades. Vortexes cause lots of drag. The new prop’s blades don’t have tips and therefore don’t generate drag-inducing vortexes.
     
  13. Gofirstclass

    Gofirstclass Well-Known Member GOLD Sponsor

    Apr 20, 2010
    Tri Cities, WA
    1995 550 Sedan Bridge,
    2010 Boston Whaler 130 Super Sport,
    1981 Boston Whaler 130 Sport,
    CAT 3406C's, 580hp.
    I'm impressed. I'd hate to think what Sharrow props in my size would cost.
     
  14. hottoddie

    hottoddie Well-Known Member

    Jan 11, 2012
    Boston/Cape Cod
    1986 Sea Ray 390 EC
    Garmin 4212 Chartplotter
    Garmin 24 HD Radar
    Garmin 546s Plotter
    454 Crusaders
    I'd love to visit the manufacturing facility and see how they are made, especially the ones big enough to push a ship. I also wonder how they will price out.
     
  15. Quint4

    Quint4 Well-Known Member TECHNICAL Contributor

    Oct 6, 2006
    S.W. Ohio
    330 Sport Bridge (Sold)
    5.7 MPI 350 Merc Bluewaters
    You can fill out a sales inquiry on their website and order direct from factory....no mention of price.
     
  16. b_arrington

    b_arrington Well-Known Member GOLD Sponsor

    Feb 21, 2007
    Setauket, NY
    2018 Back Cove 34
    Cummins QSB 6.7 480
    The "recreational" category is listed as "coming soon". Since they have inboards listed as available, I'd guess recreational includes stern drives and outboards.
     
  17. spikedaddy99

    spikedaddy99 Well-Known Member GOLD Sponsor

    Jun 11, 2008
    Prentice, Wi
    2005 500 DB
    QSM-11
    I'm asking. Curious about price.
     
    MonacoMike likes this.
  18. Quint4

    Quint4 Well-Known Member TECHNICAL Contributor

    Oct 6, 2006
    S.W. Ohio
    330 Sport Bridge (Sold)
    5.7 MPI 350 Merc Bluewaters
    I will wild ass guess......5k per prop to fit your 500.

    Please report your findings.
     
  19. endless seas

    endless seas Well-Known Member SILVER Sponsor

    Feb 13, 2008
    Baltimore,Maryland
    1997 450 DA
    Cat 420
    Yes interesting but what if and when you hit something will it hold up or break easily?
     
  20. Gofirstclass

    Gofirstclass Well-Known Member GOLD Sponsor

    Apr 20, 2010
    Tri Cities, WA
    1995 550 Sedan Bridge,
    2010 Boston Whaler 130 Super Sport,
    1981 Boston Whaler 130 Sport,
    CAT 3406C's, 580hp.
    I'm also curious. I sent them a message asking if they make props in a 30" diameter and what the cost would be. No answer yet.
     

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