Apr 2, 2015 · SailNet is a forum community dedicated to Sailing enthusiasts. Come join the discussion about sailing, modifications, classifieds, troubleshooting, repairs, reviews, maintenance, and more!

Nov 2, 2016 · SailNet is a forum community dedicated to Sailing enthusiasts. Come join the discussion about sailing, modifications, classifieds, troubleshooting, repairs, reviews, maintenance, and more!

Dec 10, 2024 · Essentially it's a rectangle that fits in the trunk and pivots on the lower forward corner -- not likely a NACA foil shape. Sometimes people find a large sheet of heavy-gauge metal and cut it to fit. If it's too heavy it might be difficult to raise, but …

Dec 15, 2011 · How about my elliprical rudder? Benefits include: backs easily to port or starboard, point higher / more lift lift from a NACA 012 hydrofoil cross-section, lighter helm... especially while motoring, turn in a tighter radius. Built better than OEM quality materials.... including an all stainless shaft and web. Competitively priced too.

Sep 11, 2008 · Given that the rudder is a stockless design, being held on by pintles and gudgeons, I think you'll be fine with making a rudder up that way. I would use two 3/4" pieces of ply though, not 5/8" if your goal is a rudder 1.5" thick. You'll want to shape the rudder to a NACA profile, and then glass over the wood and fair it with thickened epoxy.

Oct 7, 1999 · Paine came up with an unusually long — not full — keel and rudder configuration. The long Naca foil keel has a very big aperture where the propeller shaft exists. The stock of the slightly balanced rudder dead ends to a bearing at …

Mar 30, 2021 · I agree that if this is a NACA shaped fin keel and spade rudder of miminal length and optimal depth, it would perform better than a full length keel by a significant amount (again not quantified) But this is americas cup territory. A cruiser is less concerned with performance and the attendant limitations caused by draft is a different ...

Jan 17, 2010 · * Fin keel with NACA foil profile: the deeper and narrower the better. Deep narrow fins w/ bulbs is the trend. * Spade rudder, likewise a lifting foil. Possibly dual rudders to keep the foil vertical when heeled. * Perhaps non-intuitive: slow boats may point better than fast ones.

Dec 1, 2004 · Sirius 32, Sirius 35 THE OBJECT OF THIS THREAD: Interesting sailboats in production and available on the new boat market (only boats with modern designs, meaning that the boats still in production but made with old designs are out). Recent designs out of production are also admissible...

Feb 10, 2014 · We have been enjoying our I-28 with the suit of sails it came with. A 135 and a 150 and the main with a "shelf". No tears or major flaws but I am guessing they are at least 20 years old. Thinking about new sails I asked Hood to spec out a new head sail and got back a "boilerplate" quote for a...