Comments on: Water + Wind = Fun

By: South_44

South_44 — Tue, 22 Mar 2011 16:39:51 +0000

With regards to stopping, have you considered looking at the kite, perhaps creating a “vent valve” on the lowerside of the aerofoil?
Allowing the kite to become less aerodynamically sound?
This would allow the vehicle to slow and maintain the kite in the air for a period of time sufficient to reel it in?
This would result in a unique kite design and perhaps a more exclusive and specific spectrum when marketing to possible backers. Knowing that all the products to be used with this product are produced exclusively by you.
If you have any more questions about the “vent valve” let me know, its easy to adapt a normal kite design and requires no heavy parts so will not comprimise the weight of the kite.
Let me know what you thing.
South.

By: Nereus – Ścigacz Napędzany Siłą Wiatru | Najnowsze wynalazki - najnowsze gadżety :: GADzone ::

Mon, 25 Jan 2010 23:24:55 +0000

[...] http://www.yankodesign.com (No Ratings Yet) Loading [...]

By: stephen russell

stephen russell — Thu, 09 Jul 2009 00:55:00 +0000

Great for use in HI ,FL, CA, PR & Caribbean.
Be Fun 2 own & rent, Radical.
Produce this, & add Buddy Seat too.
Way 2 Cool

By: Jeff

Jeff — Sat, 11 Oct 2008 03:29:43 +0000

Thats cool looking and all but I mean…I guess testing is not a prerequisite for validating design anymore…sad.

By: Robert Frost

Robert Frost — Wed, 24 Sep 2008 19:41:56 +0000

Photoshopped…lol

No, but really, that’s fking awesome. I want two of them!

By: Best of June 2008 » Yanko Design

Best of June 2008 » Yanko Design — Mon, 01 Sep 2008 19:39:43 +0000

[...] “Nereus” water craft by designer Mathias Koehler. Hits: [...]

By: kite surfer

kite surfer — Tue, 19 Aug 2008 13:15:40 +0000

[...] [...]

By: valerie

valerie — Thu, 14 Aug 2008 22:02:08 +0000

If I said I’d thought the best way to slow a car would be to throw an anchor out the back you’d ask why not just take the foot off accelerator or use the brake and assume that I knew nothing about how cars work.. Well this design and suggestions like those above show a similar lack of understanding about how sail craft operate so suggestions like adding braking fins are as daft as the car anchor idea.

Besides, the basic problem with this thing is not stopping it but getting it moving in the first place. the shape of it and the fact that the riders legs are submerged in the water creates a massive amount of drag. You’d have to use a massive kite to move it, probably double the size you might use if kiteboarding which creates big risks for launching and landing, control in gusts and accidental miscontrol becoming much more serious.

So lets say you’ve done that and you get moving. Kite sailing involves the kite generating pulling force perpendicular to the canopy so the kite has to be placed at the side of the vessel and resistance to the lateral component of its pulling force allows the forward component to pull the craft forward – generally across the wind direction. How does the rider stop the craft just being pulled over sideways? Theres a good reason why kite boats tend to be catamarans – a simple google search would have revealed that.

It also makes the false assumption that the kite is steered like some kind of airborne powerboat. point it where you want to go and the boat follws Wrong, Steering allows the kite to be placed in the air to generate the general direction of the pull the rider needs relative to the wind, steering the vessel is accomplished by directing the board or using a rudder if on a kite boat.

anyway, its a silly idea. there you go.

By: Djog

Djog — Fri, 08 Aug 2008 21:35:45 +0000

it wont work, dont waste your time on it.

By: Donovan

Donovan — Sun, 03 Aug 2008 01:40:21 +0000

I might have a solution as to how to slow ( maybe not stop) the nereus if you ever get to building it. If you put fins in the rear that are controlled by your feet, you can dip them into the water and the back end of the craft would foillow. The deeper it goes, the more drag is created, and the slower it goes. Probably won’t stop it but you could certainly go slow enough to pull in to where ever you launched from. And to get going again, pull the fins out of the water. Just a thought but it might work.

Good luck with the design, I think it will work, even if most of these people don’t