Evolvement of foiling sailboats over the last 70 years

Discussion in 'Sailboats' started by Angélique, Feb 4, 2019.

  1. Doug Lord
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    Doug Lord Flight Ready

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    I wanted to find out the top speed for each boat in a given set of conditions which is possible using the tracker. Much more relevant and accurate for what I was trying to find than overall results in an ocean race.

     
  2. OzFred
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    OzFred Senior Member

    You've now posted the same material on 4 different threads, three of which you started. One of those is specifically about the race.

    Consider instead posting it once in the most relevant thread and referencing it from others (without the large, red, bolded text).

    You have also reposted your claims regarding upwind/downwind performance 3 or 4 times on this thread alone by quoting yourself. Repetition ad nauseam doesn't add weight or provenance to a claim, nor is it a sensible way to conduct a discussion.
     
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  3. CT 249
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    CT 249 Senior Member

    Gee, the carbon 40 ft moustache foiler which had a mediocre series at St Tropez is having a shocker in the Caribbean 600, according to the tracker - over 100 miles behind the leading fixed-keel Class 40 and a bunch of other C40s! She's lighter than the C40s are allowed to be, too.

    The foiling D4 had a disappointing race, considering the excellence of some of her crew. The non-foiling Bieker was a whacking 6 hours ahead in a two day race, a huge margin considering their size difference.

    Another interesting thing is looking at the MOCRA rule, and seeing its penalty for full foiling - 4%. So the main offshore multi rule reckons full foilers are 4% faster, and the main beach cat rules reckons the full foilers are about 4% faster. Gee, I wonder how much faster full foiling multis are?
     
    Last edited: Feb 20, 2019
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  4. BlueBell
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    BlueBell Ahhhhh...

    It helps being in red print, it says DO NOT READ to me.
    Thanks Doug
     
  5. trip the light fandango
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    trip the light fandango Senior Member

    For a genuinely interesting real life well written take, go to Sailing Anarchy and check out Blunteds take on his experience. The thread is on retrofitting T foils. Nothing like a donald trump repetitive rant, a breath of fresh air.
     
  6. Angélique
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    Angélique aka Angel (only by name)

    Doug Lord likes this.
  7. OzFred
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    OzFred Senior Member

    More likely this one: Foils / Wings - Aftermarket installation?

    Just on the Off Yer Rocker experiment, it was limited by the C Class rule for max beam. The hulls were moved closer together so that the outer tips of the main T foils were at max beam, the hulls weren't so max RM was limited and they didn't use downforce on the windward foil either (maybe a class rule?).

    So "not quick comparatively" is in regard to a full width C class with C foils.

    A wonderful article from someone who has actually developed and sailed foiling boats at an elite level.

    There is also this: trickle down http://forums.sailinganarchy.com/index.php?/topic/156835-trickle-down/&do=findComment&comment=6517781
     
  8. trip the light fandango
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    trip the light fandango Senior Member

  9. trip the light fandango
    Joined: Apr 2018
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    Location: Rhyll Phillip Island Victoria Australia

    trip the light fandango Senior Member

  10. Doug Lord
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    Location: Melbourne, Florida

    Doug Lord Flight Ready

  11. Doug Lord
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    Location: Melbourne, Florida

    Doug Lord Flight Ready

  12. OzFred
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    OzFred Senior Member

    Dunno whether the Waydoo counts as evolvement, trickledown or just a fun application of well known technologies made possible by better batteries and Bluetooth.
    [​IMG]
     
  13. Angélique
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    Angélique aka Angel (only by name)

    They could as well look for some waves, and ditch the batteries and motors, and have even more fun . . .

     
  14. trip the light fandango
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    trip the light fandango Senior Member

    That really does look like fun, there's quite a few over here. The foil operates really well because the wave action is so consistent and therefore controllable. travelling along on a craft that could harness the power of a single wave out in deep water would be a surreal experience.It 's mainly the sail and the lack of certainty/ nature of wind and running across or into multiple waves that makes foilers so unstable. Light weight is the common theme. Maybe that is where the evolvement of foiling will settle , long passages keeping up with a single wave then hopping to a fresher one in suitable conditions, with little or no sail assist.
     

  15. CT249
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    CT249 Senior Member

    The "low performance" foiling does open up interesting possibilities. I actually like the approach of the guy who fitted a foil to his Puddle Duck Racer or Oz Goose; both of them plywood boxes with sprit sails made from tarp materials. You can foil a bit in ideal conditions pretty easily and, from his experience, cheaply. Trying to foil at higher speeds, in lighter winds or upwind can enormously increase the cost, complication and crash issues. So just accepting that you can only foil in a limited range seems to possibly give a lot of the experience while reducing a huge amount of hassle.

    On the other hand, there does seem to be a lot of noise about what guys like Kai Lenny can do. The issue is that what Kai etc can do (as in this vid World Surf League https://www.facebook.com/WSL/videos/295399197746355/ ) is of course utterly impossible for mere mortals,so vids showing experts like that can be very misleading about the possibilities for the normal user.
     
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