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5 tips: faster foils. Keel and rudder - Yachting World
https://www.yachtingworld.com/5-tips/5-tips-faster-foils-make-sure-keel-rudder-tip-top-condition-71194
There are two basic options here: 1) Ask for section templates from the designer or, 2) simply test to see whether your foil is different on each side. Then pick the better section shape and...
Sailboats with foils: the evolution seen by Sirena, Soldini …
https://globalsolochallenge.com/sailboats-with-foils/
We put “wings” in the water to lift and fly the sailboats with foils and we will progressively avoid the friction of the water until the friction of the hull is eliminated. The friction of the foils remains, which is not zero, but is much less than that of the hull. V-foil trimaran – Hydroptere
foil keel | Boat Design Net
https://www.boatdesign.net/threads/foil-keel.25540/
The trim tab was activated by a vertical hydraulic cylinder and a cam plate hidden in the recess between the two foil sections. This worked so remarkably well that the Race Committee for the 1998-99 Around Alone race certified that the keel alone qualified as the emergency rudder.
Stability and foils on IMOCA sailboats - Modern Wooden boat | Pro …
http://www.modernwoodenboat.com/stability-and-foils-on-imoca-sailboats/
canting keel : that’s to say the keel is fitted on a pin (a huge one) and can be canted upwind, with its 3 tons lead bulb at 4,5 meters under the waterline, thus shifting significantly the centre of gravity (see sketch) and increasing the righting moment, apart form a little bit of lift “on the wrong side” given by the keel wing ; the undesired …
How to template a keel | SailNet Community
https://www.sailnet.com/threads/how-to-template-a-keel.54867/
Wear your eye protection and run the planer up and down on the keel, not front to back. Once you get it close, use the Surform file until the high spots are gone. The templates should now fit the keel with gaps in the low spots. And yes, the black marker line is the center of the keel. Step 7. Between the templates.
Canting Keel RC Yacht beginning to foil - YouTube
https://www.youtube.com/watch?v=ZonzSaQx5TQ
Here is a clip of a 1.2 m canting keel yacht foiling. Still in the early stages, but showing great potential.
Swing Keel Foil Pattern? | Sailboat Owners Forums
https://forums.sailboatowners.com/threads/swing-keel-foil-pattern.167579/
That matches up better with the ~3" max thickness of an actual bare keel, mine anyway. Otherwise, we'd have to add 1/2" to both sides. It also states on the template: "The actual foil percentage if the (keel hanging) angle was 45 degrees, the water length would be 22.62", which would come out to 13.2% This is about perfect for a small boat.
Foiling Monohull Design - Sail Magazine
https://www.sailmagazine.com/boats/foiling-monohull-design
IMOCA limits its boats to five appendages—normally two rudders, a keel, plus two others, be they daggerboards or whatever. Importantly, IMOCA ruled that a single horizontal foil that can slide out either side of the boat, as with British designer Hugh Welbourn’s Dynamic Stability System (DSS) foil, must count as two foils.
Canting Keel as a Lifting Foil | Boat Design Net
https://www.boatdesign.net/threads/canting-keel-as-a-lifting-foil.40423/
The front part is higher up, which means that the keel is angled and can be seen as a foil, which helps lift the boat up. On the Farr designed boats this angle was 2 degrees, but 5 on Safran and now we're up to 7.5." This doesn't seem to make sense since angled the way he says it is would lift up ,canceling part of the RM developed by the keel.
The "Best" Sportboat Keel Foil? - Sport Boat Anarchy
https://forums.sailinganarchy.com/index.php?/topic/102880-the-best-sportboat-keel-foil/
ahl said: not a sportboat, but the new advertiser the Scandinavian 20 uses a "Modified GA ( W) 10% aerofoil keel with Beavertail/Swallowtail bulb". "Modified" is the right word here. The GA-W 1 and 2 are highly asymmetrical semi-Natural Laminar Flow airfoils.
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