I just tried my new wing sail , i can tell you, this is the true wind machine with no limits, very smooth ,and float-able! Broke up my personal speed record, and looking for much more.
Can't put more pictures and videos yet,(have to wait 24 hours after reg) but check back.
This is totally new wind gear, one in the world, full double surface wing , reversible profile, and it rides very smooth, fast and sturdy.
Good luck with the sail ARCWingsail, i would like to check it out i am in the states so let me know.
Thanks Denis! Too bad you in Cape Code, we will demo some models in NJ and Cape Hatteras NC soon
Select to expand quoteARCWingsail said..
In very near feature new wing sail will make its debut on the market. But, does it really worth to switch into totally new sail system? After all, we have so much gear that already clogged our cars and garages.
Well, superiority of the wing over single sheet (or very thing) sail has been proved long time ago by Wright Brothers. For a while, many sail designers tried (and fail) to create successful wing. Most difficult problem is, to make sail reversible and maintain very specific aerodynamic profile. Many sail designs (if not all) ended up as a thick symmetrical profile with slight curvature. Even AC72 multimillion dollar catamaran has symmetrical wing with a flap, despite how funny its sounds. You know, but I like their graphics, and colors, very cool.
It took for me more than two years, by trial and error, to create reversible wing system. My agenda was: Make sail revisable (of course), modular (so it?s easy to replace parts), floatable, light, and affordable.
I?m not going to describe boring process of the creation, so strait to the chase:
Sail have tree air inflated balloons running alone the mast. These balloons compressed between vertical stretch line and mast, spaced by rotational cams. Because balloons compressed, they spring out on side of the sail just like battens, in mechanics it?s called over the center trigger.
Rite under the boom, sail has camber inducing mechanism, designed to prevent sail from becoming symmetrical when loaded. Left and right panels of the sail, joined by leading edge and fully opened on the back, so water can easily flow.
Now, about performance: Sail with wing, is totally different attitude. Sail feels and performs like a very serious wind machine. Let?s get from water start: Sail never sinks, actually I need to hold it down a bit because it wants to fly. Pull a bit forward by the boom and it?s taking off into the air. Ones over the head, sheet very carefully, because it?s going to throw you over to other side. This is proper aerodynamics, more gas=more power, as simple as that. One?s on the board, it rides very smooth, you not going to feel speed but it rides very fast , so I suggest helmet. Jibes are very smooth, even on light wind I have to wait till my speed on the jibe become slower than the wind, so I can rotate sail. Long rides are very pleasant, you are not going to feel load on the back leg due to fixed center of lift.
Also, I don?t know what the wind limit is yet. Sail is 6.5 meters, and it is wind hungry, doesn?t matter how hard it blows, it can handle more. In light conditions, it takes on the plane much faster than regular sail with same area does. I?m sure, in the feature, one wing sail will replace whole bundle of sails that you have now, as it did for me.
Look out for ARCwingsail.com, coming soon?!
See you on the water!
Looking forward to seeing some photos, video or GPS results comparing your development to known designs.
Select to expand quoteARCWingsail said..ARCWingsail said..
In very near feature new wing sail will make its debut on the market. But, does it really worth to switch into totally new sail system? After all, we have so much gear that already clogged our cars and garages.
Well, superiority of the wing over single sheet (or very thing) sail has been proved long time ago by Wright Brothers. For a while, many sail designers tried (and fail) to create successful wing. Most difficult problem is, to make sail reversible and maintain very specific aerodynamic profile. Many sail designs (if not all) ended up as a thick symmetrical profile with slight curvature. Even AC72 multimillion dollar catamaran has symmetrical wing with a flap, despite how funny its sounds. You know, but I like their graphics, and colors, very cool.
It took for me more than two years, by trial and error, to create reversible wing system. My agenda was: Make sail revisable (of course), modular (so it?s easy to replace parts), floatable, light, and affordable.
I?m not going to describe boring process of the creation, so strait to the chase:
Sail have tree air inflated balloons running alone the mast. These balloons compressed between vertical stretch line and mast, spaced by rotational cams. Because balloons compressed, they spring out on side of the sail just like battens, in mechanics its called over the center trigger.
Rite under the boom, sail has camber inducing mechanism, designed to prevent sail from becoming symmetrical when loaded. Left and right panels of the sail, joined by leading edge and fully opened on the back, so water can easily flow.
Now, about performance: Sail with wing, is totally different attitude. Sail feels and performs like a very serious wind machine. Lets get from water start: Sail never sinks, actually I need to hold it down a bit because it wants to fly. Pull a bit forward by the boom and its taking off into the air. Ones over the head, sheet very carefully, because its going to throw you over to other side. This is proper aerodynamics, more gas=more power, as simple as that. Ones on the board, it rides very smooth, you not going to feel speed but it rides very fast , so I suggest helmet. Jibes are very smooth, even on light wind I have to wait till my speed on the jibe become slower than the wind, so I can rotate sail. Long rides are very pleasant, you are not going to feel load on the back leg due to fixed center of lift.
Also, I don't know what the wind limit is yet. Sail is 6.5 meters, and it is wind hungry, doesn't matter how hard it blows, it can handle more. In light conditions, it takes on the plane much faster than regular sail with same area. Im sure, in the feature, one wing sail will replace whole bundle of sails that you have now, as it did for me.
Look out for ARCwingsail.com, coming soon!
See you on the water!
Select to expand quotenebbian said..
We're not talking about kitewings again are we?
No we're not talking about kitewings , on my profile picture you can see me with wingsail , also there is some pictures and short video on my Facebook page, you are very welcome to visit : www.facebook.com/stanislav.mostoviy
Hi Arcwingsail, can you explain this a little further?
Rite under the boom, sail has camber inducing mechanism, designed to prevent sail from becoming symmetrical when loaded. Left and right panels of the sail, joined by leading edge and fully opened on the back, so water can easily flow.
I'm just a bit confuddled about the water flow bit...
Select to expand quoteboardboy said..
cough cough bulli**Select to expand quoteboardboy said..
cough cough bulli**
I understand your skepticism and disbelieve. Many sail designers tried, and actually announced wing sail concept that never happened. Most of them end up with thick symmetrical sail, others, like Huru sails, end up with thick pocket in front. Neither of these designs have any superiority over traditional design that we use now. My concept is very different from anything that had been done. All parts are different from traditional sail parts and need to be fabricated from scratch: batten tensions, one sided interlaced battens, cam holders, and downhaul hook, camber inducing mechanism and monofilm surfaces.
Finally, after 2 years of development, after I got real result with GPS data, I can come to this forum and tell you all about it.
Select to expand quotepepe47 said..
Hi Arcwingsail, can you explain this a little further?
Rite under the boom, sail has camber inducing mechanism, designed to prevent sail from becoming symmetrical when loaded. Left and right panels of the sail, joined by leading edge and fully opened on the back, so water can easily flow.
I'm just a bit confuddled about the water flow bit...
Gladly! My sail have two surfaces, just like a wing of airplane, between these surfaces I have devices that holds and reverses desirable profile. In the beginning of the development I stitched these panels together at the trailing edge. It was a big disappointment, because even little amount of water trapped inside near trailing edge made sail very heavy during waterstarts. So I decided to keep trailing edge opened and it made a big improvement.
Leading edge of the wing made out of polyester fabric joined with left and right panels by the zippers. Camber inducing mechanism: You see, under the load, when tension buildup between mast and the end of boom, sail become symmetrical due equal force distribution between left and right panels. So I design mechanism that displace center of stretch to the side, meaning: harder outhaul= harder pull to the side. I place this mechanism about 30 centimeters below boom, right where biggest camber should be, also it keeps center of gravity down.
Select to expand quoteBen Severne said..
I reckon it looks cool!
well there's a validation if you ever needed one! Good on you Ben. Good to see one manufacturer able to pay another a compliment.
Select to expand quoteARCWingsail said..boardboy said..
cough cough bulli**boardboy said..
cough cough bulli**
I understand your skepticism and disbelieve. Many sail designers tried, and actually announced wing sail concept that never happened. Most of them end up with thick symmetrical sail, others, like Huru sails, end up with thick pocket in front. Neither of these designs have any superiority over traditional design that we use now. My concept is very different from anything that had been done. All parts are different from traditional sail parts and need to be fabricated from scratch: batten tensions, one sided interlaced battens, cam holders, and downhaul hook, camber inducing mechanism and monofilm surfaces.
Finally, after 2 years of development, after I got real result with GPS data, I can come to this forum and tell you all about it.
now I've seen your pics and video on Facebook i stand corrected...you have indeed developed something. Im looking forward to seeing the results and progress of your design. More power and best of luck to you.
Select to expand quoteMobydisc said..
Looking forward to seeing some photos, video or GPS results comparing your development to known designs.
i will give you answer in 12 hours
The 4th image in the pics detailed it a bit better than my understanding of the concept. I recall a conversation with Nebbs about bladders in a sail previously, but it seems you've captured what we couldn't quite work out. Well done. Very innovative. 
And thanks for the explanation.
Select to expand quoteelmo said..
Cool, it's nice to see some experimental innovation going on
Select to expand quoteBen Severne said..
I reckon it looks cool!
Thanks Ben! Your opinion is very important to me.
Select to expand quotepepe47 said..
The 4th image in the pics detailed it a bit better than my understanding of the concept. I recall a conversation with Nebbs about bladders in a sail previously, but it seems you've captured what we couldn't quite work out. Well done. Very innovative.
And thanks for the explanation.
Good ideas, never grows in one place fully matured.
Looks cool. I think this has promise, but how do you keep the weight down? Seems you'd end up with a sail that's either twice as heavy as others, or (if you use thinner film) rather fragile.
Select to expand quoteboardsurfr said..
Looks cool. I think this has promise, but how do you keep the weight down? Seems you'd end up with a sail that's either twice as heavy as others, or (if you use thinner film) rather fragile.
Very good question! All of my prototypes made out of 4 mil monofilm with glass/carbon battens. This is cheapest and heaviest version, however it?s easy to manage. I have curious people on my bay, picking up sail , they always say ?it?s not bad? Naturally, sail require more material ,but structure itself allow me to manufacture every part much lighter . For example, battens lighter because not loaded as hard as traditional sail , also packets for battens feather light . I manage to produce batten tensioner twice liter (and more attractive) than traditional. In the production model I will use 100% carbon battens , and 1 mil laminate technora, it will reduce weight by 60% on the top.
Now about durability: During two years of testing, we broke nothing at all. Because of double surface, it double strong. Sail is not fragile at all . I sail 4 hour cession using heaviest version of wing sail with no problem. Actually, it?s my friends, who?s jumping out of the water to change rig or make adjustments of simply because it?s too much wind. Once I build production model (hopefully 2 weeks from now) I will post more videos and pictures on the water.
Select to expand quoteMobydisc said..
Looking forward to seeing some photos, video or GPS results comparing your development to known designs.
Now about performance. From the start I will answer to ?everyone ask? question: IS IT FASTER? Yes, this sail goes faster than anything you ever had. Let me explain you why I giving you this rather bold answer, without going to hot spot and breaking speed record. Let?s start with traditional design. As you speed up with traditional sail and relative wind (in my estimation for 6.5 m) riches 32.5 kt. , leading edge start failing (stall) this is where you feel pull on the back hand, could be corrected with more outhaul, (detune), from that point if wind speed increases about 3-5 kt sail will fail miserably, you need to rig smaller, and so on. Nothing of this will happen to wing sail. Very simple: more wind, more speed.
In my quest during the whole course of development, I used same board, same boom, same mast, same fin on the same bay, collecting and comparing GPS data btw reg. and wing. Now, I can tell you, wing, is superior to traditional sail by any means, it starts from the moment when you pick it up from the ground.
what size is your test sail and what windrange do you think it has? Will it be mast specific?
are you related to Macroscien ?? 
Just kidding, got to admire someone trying something different !
Other double surface sails have had single surface from clew to head to allow for twist and increase range.
Dan Kaseler had a full double luff as well many years ago with horizontal inflatable ribs/pockets. Didn't have much twist either , showed promise but even when Dan got his own sail brand nobody has heard anymore about it.
Select to expand quoteARCWingsail said..Mobydisc said..
Looking forward to seeing some photos, video or GPS results comparing your development to known designs.
Now about performance. From the start I will answer to everyone ask question: IS IT FASTER? Yes, this sail goes faster than anything you ever had. Let me explain you why I giving you this rather bold answer, without going to hot spot and breaking speed record. Let?s start with traditional design. As you speed up with traditional sail and relative wind (in my estimation for 6.5 m) riches 32.5 kt. , leading edge start failing (stall) this is where you feel pull on the back hand, could be corrected with more outhaul, (detune), from that point if wind speed increases about 3-5 kt sail will fail miserably, you need to rig smaller, and so on. Nothing of this will happen to wing sail. Very simple: more wind, more speed.
In my quest during the whole course of development, I used same board, same boom, same mast, same fin on the same bay, collecting and comparing GPS data btw reg. and wing. Now, I can tell you, wing, is superior to traditional sail by any means, it starts from the moment when you pick it up from the ground.
Select to expand quoteARCWingsail said..ARCWingsail said..Mobydisc said..
Looking forward to seeing some photos, video or GPS results comparing your development to known designs.
Now about performance. From the start I will answer to everyone ask question: IS IT FASTER? Yes, this sail goes faster than anything you ever had. Let me explain you why I giving you this rather bold answer, without going to hot spot and breaking speed record. Let's start with traditional design. As you speed up with traditional sail and relative wind (in my estimation for 6.5 m) riches 32.5 kt. , leading edge start failing (stall) this is where you feel pull on the back hand, could be corrected with more outhaul, (detune), from that point if wind speed increases about 3-5 kt sail will fail miserably, you need to rig smaller, and so on. Nothing of this will happen to wing sail. Very simple: more wind, more speed.
In my quest during the whole course of development, I used same board, same boom, same mast, same fin on the same bay, collecting and comparing GPS data btw reg. and wing. Now, I can tell you, wing, is superior to traditional sail by any means, it starts from the moment when you pick it up from the ground.
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