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Making the World's Fastest Kayak

bart_scriv writes "BusinessWeek looks at the world's fastest kayak, which floats over the water rather than nosing through waves like more typical boats. Named 'Little Wing' for the fore and aft wings that add stability, the kayak is the creation of Ted Warren. An MIT-educated engineer, Warren 'played around for three years with 3-D wire mesh designs on his PC, crunching the numbers for speed and stability, then started building actual models to test in the waters near his Massachusetts home.'"

30 of 129 comments (clear)

  1. Not the fastest with me in it by jeremymiles · · Score: 5, Funny
    It isn't going to float over the water in such a delicate fashion when you put 225 pounds of me in it.

    Still, at least the water might not slosh over the side, and into the kayak itself (or worse, the nose bury itself so deep in a wave that it comes over the front).

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    1. Re:Not the fastest with me in it by Upaut · · Score: 4, Interesting

      Thats funny, I'm 240 lb., and I never have any trouble when I kayak out to the sea for a week of random camping along the ocean (great way to drop some weight...). Kayaks themselves are VERY good at handling weight, and the rubber sphincter should be tight enough that water cannot get in.

      I hope that these engineering features can be used to develop better salt-water kayaks as well, as it may make my trips a little faster, so I can get more of the East Coast in.

      --
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    2. Re:Not the fastest with me in it by strider427 · · Score: 2, Interesting

      I actually know the Warren's and have ridden in this very kayak. I'm a complete kayaking novice, so can't comment on comparing these to more traditional boats but at 220lbs myself, I had no problem at all maneuvering. It seemed very responsive to my paddling and felt quite stable.

    3. Re:Not the fastest with me in it by dr_dank · · Score: 4, Funny

      the rubber sphincter should be tight enough that water cannot get in.

      That's why the Goatse Class kayaks never really caught on.

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    4. Re:Not the fastest with me in it by Mr.+Flibble · · Score: 2, Interesting

      From my understanding, kayaks originated with the Inuit people of the far north (arctic ocean). None of the Inuit kayaks I have seen (in person or in photos/films) look anything like a canoe. They are all closed topped with an opening for the kayaker.

      That is correct. The Inuit kayaks were nothing like canoes, they were very wide with flat bottoms and very stable, and the Inuit *DID NOT* "eskimo" roll them. Indeed, I remember a traditional Greenlander Inuit who paddled a sealskin kayak being asked: "What would you do if you flipped upside down?"

      (Keep in mind the incredibly low temperatures of the water, and the artic conditions.)

      The Inuit thought, for some time and answered: "Drown."

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  2. The key to the speed besides the secret 10hp motor by The_Pariah · · Score: 2, Funny
    He learned a secret from the street racing ricers.

    Add carbon fiber to ANYTHING and it will be faster!

    --
    Future ruler of a small Asian-Pacific island
  3. Aftermarket enhancements for the kayak by Erectile+Dysfunction · · Score: 5, Funny

    "The addition of the fore and aft wings was a sound decision that earned the kayak approximately an extra 50HP," a California Institute of Technology professor of Aerodynamical Engineering commented adding, "but I am really eager to get one of this into my lab to see how much performance I can squeeze out by adding reducing the coefficient of drag with racing stripes and aft flames as well as introducing a chrome muffler to increase performance by another 25HP."

  4. Not even close to the world's fastest by Maximum+Prophet · · Score: 4, Informative

    It took this guy 3 hours to cross 13 miles. The world's fastest kayak can do 16.9 mph. http://www.kayakwisconsin.net/2006/01/blur.html

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    1. Re:Not even close to the world's fastest by shawn(at)fsu · · Score: 2, Insightful

      I don't think he's a novice. I read it as he only trained for three days with this particular hull design. All in this entire article sucked. Happy feel good story with little to no technical details at all. Pretty much what I as a techie nerd would expect to get out of a business week article.

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  5. Nice, but I'd rather have a hydrofoil kayak by PapayaSF · · Score: 5, Informative
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  6. What? by Red+Flayer · · Score: 4, Informative
    FTS:
    BusinessWeek looks at the world's fastest kayak, which floats over the water rather than nosing through waves like more typical boats.
    Huh? Not remotely -- this is not a hovercraft. This is simply an ultra-light kayak with a differently shaped hull based on racing boat designs.

    Nor is it the world's fastest kayak, at least not according to TFA. The best it's finished in a competitive race is 6 seconds out of 1st place.

    OK, it's pretty cool, and I'd like to take it on the Hudson sometime. But don't overhype it, please.
    --
    "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    1. Re:What? by Ungrounded+Lightning · · Score: 2, Informative

      FTS:
      BusinessWeek looks at the world's fastest kayak, which floats over the water rather than nosing through waves like more typical boats.

      Huh? Not remotely -- this is not a hovercraft. This is simply an ultra-light kayak with a differently shaped hull based on racing boat designs.


      The blurb makes it sound like he added hydrofoils, so it would actually "fly", rasiing the hull (mostly?) out of the water.

      I was excited by this, thinking that maybe somebody had figured out a way to do man-powered hydrofoils simply, in a solid, unjointed form. Perhaps by letting the hull tuch water occasionally to provide pitch control rather than providing something like a "skimmer" to sense the surface level and adjust the angle of the fore foil (requiring a pivot joint - a moving part in a seawater environment) or using angled foils penetrating the surface for feedback (and wasting power by having foils with lift in two directions canceling each other without canceling the associated drag).

      But then I read the article.

      It looks like he hung a couple "wing keels" on the hull, one fore one aft. Absent any lift on the wing (entirely separate from its normal function) to lift the hull and reduce its friction, this should do nothing but improve the hull's resistance to crosswise slippage from wind and improve its ability to maintain a course by resisting turning without adding appreciable drag. (Judging by the writeup, it didn't even do that well, or at all.)

      (A wing keel is essentially a fin keel - a straight-down waterfoil - with the end cut off and a short crosswise wing (also foil-shaped for minimum friction) substituted, making an inverted "t" with a narrow crossbar. A fin keel resists side-slippage. But water runs around the end, so the last foot or so provides little side force and is just there to make the water take enough of a trip to keep the rest of the fin operating. Substituting a short crosswise wing for the end of the fin does the same job without penetrating as deep into the water - important if you want to work in shallows. The main downside is that as the hull heels over to one side you lose resistance to side-slippage a bit more abruptly.)

      It would be interesting to see a writeup that actually tells us what this hull's design is supposedly accomplishing and how it does it, rather than making puffy claims followed by a meandering story that doesn't support them.

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  7. Re:But can it go... by CheddarHead · · Score: 3, Informative
    Can it go over a waterfall or down some steep rapids? Gliding is great, as long as you have something to glide on, which isn't the case in some of the more turbulent rapids.


    It's an ocean kayak, not a white water kayak. Perhaps you were not aware, but kayaks are not all created equal. White water kayaks are shorter, and more maneuverable. Ocean kayaks are longer, more stable, and with more pronounced keels for better tracking in the wind. This kayak was not designed for waterfalls and rapids.
  8. fastest? by ceejayoz · · Score: 4, Funny

    I'm guessing this one is faster. :-p

  9. Overhyped article - a planing hull kayak by truckaxle · · Score: 5, Interesting

    There are two types of hulls that you'll find in a boat (or kayak) - a planing hull and displacement hull. So this is a planing hull. The fact that it is designed by an MIT graduate using finite element analysis makes this news? And just what criteria are they using to make the claim that it is the "worlds fastest kayak"?

    1. Re:Overhyped article - a planing hull kayak by wsherman · · Score: 3, Informative
      So this is a planing hull.

      The article was light on details but it's not possible for a human kayaker to generate enough power to get the hull up "on plane". For purely human powered kayaks (not surfing waves) the fastest hulls are displacement hulls that minimize the wetted surface area of the hull cross section. That is, fast kayaks are very long and the hull cross section is a semi-circle (very hard to turn and very unstable).

  10. Re:But can it go... by ChetOS.net · · Score: 5, Funny

    Yeah, but can it run Linux?

    That is the real question.

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  11. Not really about the boat by alop · · Score: 2, Interesting

    Anyone else notice that the article about "worlds fastest kayak" wasn't really about the boat. Seemed like it was more about a particular ride. I wanted specifics, ya know, more techie stuff like said 3d wire mesh or something.

    --
    --alop
  12. Re:Missing information? by Timesprout · · Score: 2, Funny

    Just about as fast as you can paddle it

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  13. Wow by VonSkippy · · Score: 4, Funny

    Perhaps next he can put that world class education to really important stuff like lighter golf clubs or more aerodynamic bowling balls.

  14. Re:The key to the speed besides the secret 10hp mo by Itninja · · Score: 2, Funny

    Yeah, AND you can totally Tokyo Drift race this thing. Because it's light. Word.

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  15. Beware Sleestak! by krell · · Score: 2, Funny

    "Can it go over a waterfall or down some steep rapids?"

    Still looking for a way to return to the Land of the Lost, Rick Marshall?

    --
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  16. Re:But can it go... by tylernt · · Score: 2, Funny
    Yeah, but can it run Linux?
    Yes, a Kayak certainly can. We still a few of them still around, and 400MHz is enough to run Linux.

    However, I can guarantee they won't float. They might make good boat anchors though... they are built like tanks!
    --
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  17. Excellent point, but by Red+Flayer · · Score: 2, Informative

    I think we know. The thing is mono-hulled, only 18 feet long, and has a traditional rudder. Even if you want to exclude catamaran and trimaran kayaks, you're not going to be able to compete with the fastest kayaks out there -- which are longer and have underwater foil rudders.

    Now, if the question is whether or not this is the fastest kayak you can get for under $5k, maybe you're onto something.

    Note that max speed increases as hull length increases, though this depends on the seas as well. And I'm also referring to straight-line speed, a more maneuverable kayak will outperform a very long one on there-and-back type races of moderate or short length.

    --
    "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
  18. Speed and water resistance by pjunold · · Score: 5, Informative

    The expression 'world fastest kayak' is somewhat like 'world fastest running shoes'. Race kayaking is all about the motor and to a much lesser degree about the kayak.

    It makes much more sense to speak about the water resistance of various kayak designs. For some given athlete(balance skills, strength and technique) racing some given distance in some given conditions one could even speak of an optimal design. As a general example - the kayaks used for sprint racing are different from the kayaks used for marathon racing.

    On a related note genetic algorithms have been applied to the problem of finding an optimal hull given a number of constraints: http://www.cyberiad.net/library/kayaks/racing/raci ng.htm
    Nothing revolutionary turned out though.

    /Peter
  19. What makes this the worlds fastest kayak? by viking2000 · · Score: 2, Insightful

    The only support for the statement that this is the worlds fastest kayak is:

    1. The builder goes to MIT
    2. The journalist thinks it is fast.

    You start to wonder what kind of people goes to MIT. If you, dear /. reader, went to the newspaper to tell them you had built the worlds fastest something, (say car).

    Would you not have some data to support your claim? A radar gun readout? A win in some competition? Anything?

  20. Article Is Self Promotion by aldheorte · · Score: 2, Insightful

    Article summary: Rich yuppy buys overly expensive kayak because it is "fast" and "looks like a ferrari", although he is unable to explain why, from a technical perspective, it is any better than a regular kayak. He almost exclusively talks about his little vignette of crossing the Long Island Sound in it, pandering on about how he was buying the $5000 kayak so he could get sponsors to give $500 or so to "needy children" for his little cross bay adventure. He gives props to his friends, who will no doubt be tickled to be in BusinessWeek.

    Before you mod troll, read article and you will see it is completely devoid of any technical or scientific interest. Slashdot's slogan is "stuff that matters". This stuff does not.

  21. Re: Inuit by jpkeating · · Score: 2, Interesting

    This anecdote, if true, must be relatively recent -- this clearly is not a guy whose life, and that of his family, depended on his ability to hunt from his kayak in any weather. Traditionally, Arctic peoples certainly could roll, with differences among cultures. Hunters who used kayaks could roll even if they lost their paddle or dislocated a shoulder. Even so, kayak deaths were common. From what I understand, children learning to kayak first learned how to brace ("leaning" on the water with a moving paddle) to keep from capsizing in the first place, then learned how to roll up, and only later learned how to paddle forward. Their kayaks were narrow and sat low in the water, both of which made rolling easier and helped keep the kayak from getting blown around. They also wore one-piece sealskin jackets whose bottoms were tied around the hatch, keeping the paddler warmer and drier than modern equipment does. For a list (with pictures) of capsize maneuvers performed at the Greenland championships, including rolling without a paddle while holding an 8-kg stone, see http://216.92.139.192/QK/rolls/rolls.html.

  22. viking longboat? by CAIMLAS · · Score: 2, Interesting

    Is it just me, or does this kayak look a hell of a lot like a Viking longboat?

    Viking longboats were well known for being fast, sleek in the water, and capable of traversing the shallowest of waterways - kinda like what a kayak is intended to do.

    I personally wouldn't be surprised in the least bit if he copied the general design of a longboat while making it slightly more streamlined and rounded on the topside.

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  23. A(nother) kayakers perspective by Evil+Oli · · Score: 2, Informative

    Having been paddling for several years competitively I can make the following observations:

    1. Yes paddling on flat water is different to paddling on ocean/sea conditions. Generally it is harder and slower paddling in choppy water, however if you are experienced you will know how to best make use of the wind and weather conditions in order to increase your speed. Depending on the swell and wind direction you can quite often get equal speed compared to flat water and sometimes much greater speeds if assisted by good swell.

    2. Carbon fibre is nothing flashy in a kayak; most competition kayaks, and increasing numbers of recreational kayaks are made with carbon fibre.

    3. US$5000 is way too much to spend on something that is so ugly and slow as this kayak. You can easily pick up a K1 racing kayak weighing around 20-25 pounds which would go much faster for around US$2000-2500. And THAT is expensive.

    4. Judging by the content of the article, and despite the author being a novice, you would expect an amazingly fast kayak to be faster than the reported time. Much cheaper and probably stabler kayaks are faster and cost less (and are less ugly).

    I could go on and on. The whole article and indeed the kayak itself are all wrong.