Im building a wingsail for my kayak/tri
CLC sailrigand need some help designing an easy and simple control mechanism for the flap, or second element.
The sail is constructed around a Sunfish mast section, well an aluminum tube that is the dimensions of the Sunfish mastbut is 14 ft in length.
The sail will be 12 ft tall using two sections which are NACA foils shapes 0012 for the main(3 ft section), and 0009 (22 inch section) for the second section, or flap.
My wish is to have a control arm on the second section and a "one string pulls all" led to a pivoting exit block off the main element. This one line would be a camber limiter and adjustment, so not only could I pull it to increase camber but it somehow would limit the camber as well.
I can figure it out with two lines but wanted to pick your engineering brains for an easier or one line solution.
Air-pressure is gonna make the second element WANT to always
find O-deg AOA , IF it's hinged in the proper location. I
know this from flying Rigid-wing Hang gliders that have
a flap.
https://www.google.com/search?q=Exxtacy&client=firefox-a&hs=hUt&rls=org.mozilla:en-US:official&channel=np&source=lnms&tbm=isch&sa=X&ei=GtLKUsiEJs34oATarYGQDA&ved=0CAkQ_AUoAQ
I would want that second element to go to neutral, whenever
i sheeted OUT the main sheet, the flap adds Copious amounts
of lift, that i'd want to go away in a gust ; so a quick release would be Great!
Why so thin on the airfoil ? My Exxtacy is 14% cord thickness,
and it will do 80mph ; pull the flap-cord, and i can land
it on one foot, (and it's a Fake leg at That !!
Bille
