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  1. #31
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    How bout a fin that is warped all the way around? Betcha that would provide a unique ride.

  2. #32
    Quote Originally Posted by leethestud View Post
    $169, Roy, I am really proud of you for being somewhat realistic on this endeavor. I would actually consider using one if I didn't think Yankee would shoot me for it. Fits a standard longboard finbox I assume? Can you break it down for a cave man like myself, what does it offer that my normal fins don't?http://wp.surfride.com/2012/02/fin-g...gboard-580.jpg

    The bumpy leading edge gives huge gains ( around 40%) in the angle of attack capability, and unlike conventional leading edges maintains high lift right up to the stall zone. There is also increased lift and lower drag.

  3. #33
    Quote Originally Posted by RhodyPedro View Post
    Looks like a humpback whale fin. Aren't whales really slow movers?
    The humpbacked whale is an agile creature and its flippers are a better model for surfboard fins than the fins belonging to high speed fish.

    http://www.naturalhistorymag.com/bio...he-whale-turns

    Fish fins are not analagous to surfboard fins. The flexibility of fish bodies means that they turn without subjecting fins to a high angle of attack, and the fin does little of the work of either propulsion or turning The Whale flipper on the other hand needs to operate at high angles of attack.

    Adapting the whale flipper to higher speeds is simply a matter of adjusting the chord ratio and foil profile of the fin.

    Furthermore upright elliptical planform fins are inherently more efficient than raked fins like the Greenough.


  4. #34
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    Quote Originally Posted by Roy Stuart View Post
    The humpbacked whale is an agile creature and its flippers are a better model for surfboard fins than the fins belonging to high speed fish.

    http://www.naturalhistorymag.com/bio...he-whale-turns

    Fish fins are not analagous to surfboard fins. The flexibility of fish bodies means that they turn without subjecting fins to a high angle of attack, and the fin does little of the work of either propulsion or turning The Whale flipper on the other hand needs to operate at high angles of attack.

    Adapting the whale flipper to higher speeds is simply a matter of adjusting the chord ratio and foil profile of the fin.

    Furthermore upright elliptical planform fins are inherently more efficient than raked fins like the Greenough.


    The gnome apparently used to work at NOAA.

    That pic looks like the medical scans of what was pulled out of chucka-boo-boo's rectum. Must be nice to finally be able to sit down without a ripping sensation in your bowels, eh boo-boo?

  5. #35
    Quote Originally Posted by yankee View Post
    The gnome apparently used to work at NOAA.

    That pic looks like the medical scans of what was pulled out of chucka-boo-boo's rectum. Must be nice to finally be able to sit down without a ripping sensation in your bowels, eh boo-boo?
    GEEBUS KRIPES, GIVE IT A BREAK! or come up with some different material. unless yer just a 1 trick pony. In that case, just apply a number to each of your 2 rants, it's fast and it'll save you from getting carpel tunnel syndrome. like just put #1, we'll all know, chuckabooboo rectum. and #2, Chuckaboo and his dada,
    Last edited by chicharronne; Dec 22, 2013 at 04:10 PM. Reason: detracts from my point

  6. #36
    That's an interesting article. I always thought someting swept like a Greenough 4-A or tuna's fin was most efficient/less drag; however, I'm not ready to scallop the leading edge of my fins yet. I will be waiting to hear some reports from other surfers who buy one.

  7. #37
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    Quote Originally Posted by chicharronne View Post
    GEEBUS KRIPES, GIVE IT A BREAK! or come up with some different material. unless yer just a 1 trick pony. In that case, just apply a number to each of your 2 rants, it's fast and it'll save you from getting carpel tunnel syndrome. like just put #1, we'll all know, chuckabooboo rectum. and #2, Chuckaboo and his dada, blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah 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    The one-trick VB pony has spoken; er, that would be you, macaroni: the country goombah wannabe who figured out how to copy & paste & bores everyone with conspiracy theories & archy-fan-club stuff.
    What, have you picked up emass8's superiority mantle after last weekend's mackin' swell in VB?

    Tell us how to live, how to post, how to surf, macaroni buoy.
    Last edited by yankee; Dec 22, 2013 at 07:31 AM.

  8. #38
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    Quote Originally Posted by Roy Stuart View Post
    The humpbacked whale is an agile creature and its flippers are a better model for surfboard fins than the fins belonging to high speed fish.

    http://www.naturalhistorymag.com/bio...he-whale-turns

    Fish fins are not analagous to surfboard fins. The flexibility of fish bodies means that they turn without subjecting fins to a high angle of attack, and the fin does little of the work of either propulsion or turning The Whale flipper on the other hand needs to operate at high angles of attack.

    Adapting the whale flipper to higher speeds is simply a matter of adjusting the chord ratio and foil profile of the fin.

    Furthermore upright elliptical planform fins are inherently more efficient than raked fins like the Greenough.

    Me likey very much

  9. #39
    just poking keys doesn't count, Yacky Doodle Doo. try to form sentences like wacky tooky toodle snordge.

  10. #40
    Join Date
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    OTJ drug testing....it's a good thing you're not subject to it, macaroni.