35th Americas Cup: Foiling Multihulls!

Discussion in 'Multihulls' started by Doug Lord, Sep 26, 2013.

  1. Doug Lord
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  2. catsketcher
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    catsketcher Senior Member

    Thanks a heap Doug
     
  3. Doug Lord
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    You're welcome....
     
  4. Doug Lord
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    Some Red Bull guys sail Oracles AC 50-note the drone shot towards the end:
     
  5. Doug Lord
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    AC Press Conference Momentarily:
     
  6. Doug Lord
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    35th AC:
    wind: EarthCam - Bermuda Cam http://www.earthcam.com/world/bermuda/pembroke/?cam=bermuda
    2nd web cam-- Port Bermuda Webcam - Live Streaming Video from PTZtv http://www.portbermudawebcam.com/

    For reference: 35th America's Cup https://www.americascup.com/en/results.ht


    Saturday 6/17/17:
    AC R1 13:12 hrs
    [​IMG]
    ORACLE TEAM USA
    JIMMY SPITHILL
    -
    [​IMG]

    Emirates Team New Zealand
    PETER BURLING
    -
    AC R2 13:57 hrs
    [​IMG]

    Emirates Team New Zealand
    PETER BURLING
    -
    [​IMG]

    ORACLE TEAM USA
    JIMMY SPITHILL
    ======================================

    Oracle crushed in both races today!!
     
    Last edited: Jun 17, 2017
  7. Doug Lord
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    Doug Lord Flight Ready

    35th AC:
    wind: EarthCam - Bermuda Cam http://www.earthcam.com/world/bermuda/pembroke/?cam=bermuda
    2nd web cam-- Port Bermuda Webcam - Live Streaming Video from PTZtv http://www.portbermudawebcam.com/

    For reference: 35th America's Cup https://www.americascup.com/en/results.ht


    Sunday 6/1/17:
    AC R3 13:12 hrs
    [​IMG]
    ORACLE TEAM USA
    JIMMY SPITHILL
    -
    [​IMG]

    Emirates Team New Zealand
    PETER BURLING
    -
    AC R4 13:57 hrs
    [​IMG]

    Emirates Team New Zealand
    PETER BURLING
    -
    [​IMG]

    ORACLE TEAM USA
    JIMMY SPITHILL

    Oracle crushed AGAIN in both races today!!
    ======================================
     
    Last edited: Jun 18, 2017
  8. Doug Lord
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  9. Doug Lord
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    Doug Lord Flight Ready

    Team New Zealand!! Wow! These guys have really done a tremendous job-just faster at everything than Oracle. One week from yesterday for the next and final series of races(next Sat and Sunday). The only thing I can say for Oracle is "Remember San Francisco 2013!"
    Go Oracle Team USA!!!
     
    Last edited: Jun 18, 2017
  10. Doug Lord
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    Todays press conference:
     
  11. Doug Lord
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    Doug Lord Flight Ready

    Aerodynamic Drag-look at these crew shots:
    pictures by Sander van der Borch from catsailingnews.com

    TNZ AC 2017 foil-6-18-17.jpg
    Oracle AC 35 6-18-17.jpg
     
    Last edited: Jun 18, 2017
  12. Skyak
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    Skyak Senior Member

    I am surprised at the number of mistakes in this paper. Monitor had active heal stabilization, and saying it had a big drag penalty in the same paragraph that notes it was much faster is crazy. To make a boat that was that much faster out of wood, steel, cotton and aluminum is ONLY possible because it achieved lower drag.

    Then calling foiling kite boards "no control" is absurd. Without a talented sailor that craft goes nowhere, and the only reason it is fast in "light wind" is a crazy amount of sail area and span per weight, and the ability to move the sail up to where the wind is not light.

    Very careless -no wonder they were easily beaten.
     
  13. Skyak
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    Skyak Senior Member


    In the stats Oracle averages a lower speed and sails a greater distance in every race. TNZ has the boat advantage so Oracle can only hope they make a mistake -not happening. Could Oracle make some significant discovery like in 34?
     
  14. Doug Lord
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    ===================================
    Martin Fischer-----
    What an obnoxious comment to make based on false assumptions of "mistakes"! First of all, if there is any mistake it is calling "surface piercing foils" "V" foils and not including hydroptere in the surface piercing group. But rather than a mistake I imagine it has to do with translation.
    1) Monitor used ladder foils for main foils which are basically multiple surface piercing foils set at an angle-they WERE high drag and is why the boat often had to be towed to start foiling. ( Gordon Baker's Sailing Hydrofoil MONITOR http://www.foils.org/monitor.htm ) Baker also did a smaller foiler using "V" foils......
    2) Fischer specifically said that kiteboards had heave and pitch stabilized by the sailor-again no mistake at all-if anything a problem in translation.
    Making such poorly informed comments about one of the best foil designers around is just nuts!
    ----
    Fisher has designed the AC 45-F foils, Flying Phantom foils and the GC32 among others.......
     
    Last edited: Jun 19, 2017

  15. michaeljc
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    michaeljc Senior Member

    We in NZ are getting only snippets of info on the technical details of Aotearoa (TNZ)

    My own hypothesis is that if she is faster, then it is coming more from above decks than below. This is largely due to allocation of duties and on-the-fly powered adjustments i.e. instant tweeking is going on the entire time based on screen feedback on speed.

    This is made possible due to superior hydraulic power and the fact that 2 cyclists can produce as much as 3 grinders. The 3rd cyclist is making adjustments to foils (or something similar) The trimmer is working off a screen much of the time and gets instant mechanised response made possible through the hydraulic output.

    This leaves the skipper with more freedom to just sail the course.
     
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