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post #1 of 12 Old 12-20-2007 Thread Starter
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Wing sails

I have never seen anything like this. I'm assuming someone here knows a little more? They're ugly, but seem effective.

http://www.solarnavigator.net/wing_sails.htm

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post #2 of 12 Old 12-20-2007
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I saw a boat with wing sails on the www recently. Intriguing.
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post #3 of 12 Old 12-20-2007
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I have to give them credit for all their hard work at refining it, but unfortunately this is very obsolete technology compared to the revolutionary SailFan(TM).
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post #4 of 12 Old 12-20-2007 Thread Starter
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lmao......

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post #5 of 12 Old 12-20-2007
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The problem is reefing the beastly thing in a good blow.

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post #6 of 12 Old 12-20-2007
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Wing sails have no place on cruising boats... since, as Idiens has pointed out, they aren't reefable, and would generally present way too much windage in heavy weather. This issue is mentioned in Chris White's The Cruising Multihull, since wing sails and rotating wing masts have been mostly been used on multihulls.

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post #7 of 12 Old 01-26-2011
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Have alook at my posts at
Variable Geometry Wing Sails
Wing sails can be made reefable and don't have to present any greater windage than a conventional rig. See the photo below of the rig on a 28 ft boat.
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post #8 of 12 Old 01-26-2011
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Your work looks interesting but the pictures look more like a full batten sail withe some abilty to change the foil shape than the current hard wings we are seeing on the AC boats and smaller racing cats ?

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post #9 of 12 Old 01-26-2011
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That is a reasonably accurate description. The sail consists of two flat fully battened skins. The foil shape is induced by mast rotation. The rig has twist adjustment and works reefed. Slab reefing is quite simple and lazy jacks could be used also. The sail can produce a very wide range of section shapes. It is also easy to retro fit to any platform. The rig will support fractional or mast head headsails and spinnakers.
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post #10 of 12 Old 01-27-2011
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Sailfan

I had a look for the sailfan, I expect that from the descriptions given it is a fan that mounts on the front of a vessel and the wind passing through the blades turns them in much the same way as a gyrocopter.is this correct?. If it is then I for one would not like to have a fan spinning on the front of my yacht, the OHS issues for a start, never mind the noise.

When considereing wingsails one should remember that most of us go sailing for the effect it has on the senses,The silent energy and the beauty of the sails deployed. Attending the rig is a big part of the experience . Yes a fan spinning on the fordeck gets me going.

The wingsail concept put forward by VGWS1 is based on keeping the experience with a yacht a rewarding one, tall wing shaped sails, sailing higher and faster, 21st century stuff for yachts, not gyrocopters.

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