35th Americas Cup: Foiling Multihulls!

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

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  1. Doug Lord
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    Doug Lord, Apr 24, 2016
    #406
  2. Doug Lord
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    Doug Lord, Apr 26, 2016
    #407
  3. Doug Lord
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    Doug Lord, May 5, 2016
    #408
  4. farjoe
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    farjoe Senior Member

    Was there anybody listening to what they were saying? The few people passing by on the side seemed uninterested
     
    farjoe, May 6, 2016
    #409
  5. Doug Lord
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    Doug Lord, May 7, 2016
    #410
  6. DGreenwood
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    DGreenwood Senior Member

    That article is awful. First off he needs to learn the language he is using to write. Then he might find some nuance in the event he has just witnessed, seeing as he is probably mostly speaking to sailors.
    Move along...nothing to be learned here.
     
    DGreenwood, May 7, 2016
    #411
  7. Doug Lord
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    Doug Lord, May 8, 2016
    #412
  8. Doug Lord
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    Doug Lord, May 8, 2016
    #413
  9. Doug Lord
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    35th America's Cup on Foils---Oracle-Larry Ellison Commencement Address

    From Scuttlebutt tonight:
    UPDATE: 5/16/16-- I just watched the whole address and it was fantastic! Most inspiring.......
    https://www.youtube.com/watch?v=5DJaWWwITRM
     
    Doug Lord, May 15, 2016
    #414
  10. brian eiland
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    brian eiland Senior Member

    Double Headsails on America’s Cup Catamarans

    ..posted this on another subject thread, but thought I might stir up trouble and post it here :p::D:


     
    brian eiland, May 27, 2016
    #415
  11. Doug Lord
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    Doug Lord Flight Ready

    Seems to me the foil angle of attack would be the same regardless of the foiling platform attitude. As would angle of incidence(red below) relative to the flight waterline:
    Note: on many foilers the static and flight waterlines are parallel(after takeoff)-not on the nosedown AC45 so the flight waterline is the better reference.

    This is a rough sketch I did to illustrate the relationship of the foils to the platform between a "normal" foiling cat and an AC cat foiling nosedown:
    Video illustrating nosedown platform: https://www.youtube.com/watch?v=jeyJ9kuif7I


    [​IMG]

    Rudder foil set for nosedown platform attitude:
    [​IMG]
     
    Last edited: Jun 5, 2016
    Doug Lord, May 29, 2016
    #416
  12. Doug Lord
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    35th America's Cup on Foils---Oracle

    Oracle AC 45 "17" flying nosedown: (Sam Greenfield photo)


    [​IMG]
     
    Doug Lord, May 29, 2016
    #417
  13. Doug Lord
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    Doug Lord, Jun 6, 2016
    #418
  14. brian eiland
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    brian eiland Senior Member

    Thanks Doug, that was a good presentation.
     
    brian eiland, Jun 6, 2016
    #419

  16. Doug Lord
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    35th America's Cup on Foils!

    You're welcome! Maybe one design-as far as it goes for 35- isn't such a bad idea as I originally thought.....
     
    Doug Lord, Jun 6, 2016
    #420
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