- published: 06 May 2014
- views: 100945
A wingsail is a variable-camber aerodynamic structure that is fitted to a marine vessel in place of conventional sails. Wingsails are analogous to airplane wings, except that they are designed to provide lift on either side to accommodate being on either tack. Whereas wings adjust camber with flaps, wingsails adjust camber with a flexible or jointed structure (for hard wingsails). Wingsails are typically mounted on an unstayed spar—often made of carbon fiber for lightness and strength. The geometry of wingsails provides more lift, and a better lift-to-drag ratio, than traditional sails. Wingsails are more complex and expensive than conventional sails.
Wingsails are of two basic constructions that create an airfoil, "soft" (fabric-shaped) and "hard" (rigid-surfaced). L. Francis Herreshoff pioneered a precursor rig that had jib and main, each with a two-ply sail with leading edges attached to a rotating spar. The C Class Catamaran class has been experimenting and refining wingsails in a racing context since the 60s. Englishman, John Walker, explored the use of wingsails in cargo ships and developed the first practical application for sailing yachts in the 1990s . Wingsails have been applied to small vessels, like the Optimist dinghy and Laser, to cruising yachts, and most notably to high-performance multihull racing sailboats, like USA-17. The smallest craft have a unitary wing that is manually stepped. Cruising rigs have a soft rig that can be lowered, when not in use. High-performance rigs are often assembled of rigid components and must be stepped (installed) and unstepped by shore-side equipment.
Is this the future of cruising? Matthew Sheahan tests Beneteau's prototype wingsail
The AC72 is a 72-foot catamaran with a wingsail. Each wing takes approximately 25,000 man hours to build. These wings are the ultimate in yacht design allowing the AC72 to fly 3x the speed of the wind. -------------------------------------------------------------------- www.facebook.com/americascup www.twitter.com/americascup www.twitter.com/americascupLIVE (live race tweets) www.americascup.tumblr.com www.pinterest.com/americascup Instagram @americascup Join the AC Crew, official fan club of 34th America's Cup http://sf.americascup.com/crew Shop the America's Cup store, featuring PUMA http://shop.americascup.com/
I built this wing with a tail to control it, and here I am testing it out before I install the remote control systems to it. Eventually I will make the whole thing into a remote control boat
Why do we have a rigid wing instead of a soft sail? Our wing trimmer Paul 'CJ' Campbell James gives the lowdown. Visit Land Rover BAR at http://land-rover-bar.americascup.com/ Like Land Rover BAR on Facebook https://www.facebook.com/LandRoverBAR/ Follow Land Rover BAR on Twitter https://twitter.com/LandRoverBAR Follow Land Rover BAR on Instagram https://www.instagram.com/landroverbar/
http://www.cupexperience.com/ How to trim the wingsail on an America's Cup AC45 catamaran: what are camber and twist in a sail and how do you control them?
RC Wingsail Foiler Project Presentation in 3D Control via Droidplanner V2 Autonom by gyros, weather vane, accelerometer and GPS Master Project to Evry-Val-d'Essonne university (France) Animated with 3Ds Max 900 hours of work 99 hours render time
CURRENT PRICE: $186,700 - - - - STOCK #108415 CLASS A OCEAN GOING CRUISING TRIMARAN IS THE FIRST OF ONLY 4 HULLS EVER BUILT View almost 200 photos and VERY DETAILED information of this 1995 Walker Wingsail Zephyr 45 for sale at https://www.popyachts.com/trimaran-sailboats-for-sale/walker-wingsail-zephyr-45-in-islamorada-florida-108415 Or call us any time at (941) 357-4044. Please enter Stock #108415 so that your call gets routed correctly. We hate machines too but this truly is the fastest way to get routed to the correct representative who knows the most about this boat. Talk to you soon! MORE DETAILS: The first of only four production hulls ever built by John Walker's Walker Wingsail Systems in Plymouth, UK, this is a Class A ocean crossing high performance cruising trimaran. Zep...