Howard, The small notch you refer to in the rudder blade behind the skeg is a non-standard modification for my boat. My gudgeons are different from the stock model and the pintles are only 3/4 inch from the transom when inserted. That didn't leave enough room for the forward stepped leading edge of the blade to clear the transom, hence the "notch".
The "balanced" feature of the blade is similar to my original rudder, which was the way Lyle Hess designed them, before the rudders were redesigned to be raisable. It is a very sweet handling high performance rudder, not much weather helm (dependent on your rigging), but not "dead" at all to my way of thinking. I hope the new kick-up blade performs the same. Larry On Thu, 03 Mar 2005 10:09:42 -0600 Howard Audsley <[EMAIL PROTECTED]> writes: > > > Offhand, I can't imagine how a line through a cleat is going to > release on > it's own, but I'm sure it must. I'd like to see how that works. The > concept > of a line releasing from a cleat on it's own just doesn't seem > right. > > I'm aware of one such kick-up rudder design, where the rudder blade > pivots > on a bolt or pin at the aft edge of the rudder. On the forward edge > of the > rudder is a spring loaded pin that has enough friction/force to hold > the > rudder in place during normal loads. The pin is on the top half of > the > rudder. Right above that is cam on the bottom half...the part in the > water. > In this design, an impact has enough leverage aft to force the small > cam on > the rudders blade to push the pin out and release the rudder blade > to pivot > out of the water . You then use a line like you describe to reset > it > forward. Normally, there isn't any tension on the line, which just > hangs > loose. > > For those who frequently encounter shallow water and groundings, > this could > be a really good deal, as a severe grounding with a stock rudder can > damage > the rudder, the rudder pin and if bad enough, the transom too. > > I also notice the foil of the new rudder extends forward under the > skeg, > giving a more balanced rudder design. Curious to see how this is > going to > affect weather helm and the "feel" of the tiller. Hopefully, it is > only > partially balanced and not "dead". Also curious to see how that > small notch > at the aft end of the skeg affects drag, if any. It is below the > waterline > and in a turbulent flow area. It may turn out to be a great > improvement. > Just curious to see how it turns out. > > And lastly, I'd be curious to see if you can steer with the rudder > kicked > up. As in what happens when you find yourself sailing in 20 inches > of water? > Will it still steer the boat without damaging the rudder? > > Howard > M17, #278 > > > ------ Forwarded Message > From: Larry E Yake <[EMAIL PROTECTED]> > Reply-To: For and about Montgomery Sailboats > <[email protected]> > Date: Thu, 3 Mar 2005 07:24:50 -0800 > To: [email protected] > Subject: Re: M_Boats: M17 Kick-up rudder > > The rudder blade is held down by cinching up and cleating off the > line on > the front of the rudder. On impact, the cleat releases and allows > the > blade to pivot on the bolt. You then just tighten that line back up > to > pull the blade back down, cleat it, on you're on your way. > Larry > > On Thu, 3 Mar 2005 07:11:55 -0600 "Gilbert Landin" > <[EMAIL PROTECTED]> > writes: > > Randys pictures sure look good. It just seems the one tension > bolt > > would > > make it hard for the bottom part to stay horizontal on a good > sail. > > > > gil > > ----- Original Message ----- > > From: "Larry E Yake" <[EMAIL PROTECTED]> > > To: <[email protected]> > > Sent: Wednesday, March 02, 2005 11:20 PM > > Subject: M_Boats: M17 Kick-up rudder > > > > > > > My new kick-up rudder from Ida Sailor arrived this week. I'm > > impressed. > > > It fits perfect and the workmanship is top notch. Can't wait > for > > spring > > > to try it out. All I have to do is drill the tiller pivot bolt > > hole, > > > since I'm using my old tiller. Randy Graves added some pictures > of > > it to > > > his website at http://sailing.gravesfam.us . It has some > custom > > > modifications to fit my non-standard gudgeons, and I had the > > optional > > > releasing jam cleat added, but the basic design will be the > same > > for the > > > standard M17 setup. > > > > > > Larry Yake > > > M17 #200 > > > Tullamore > > > "In a power boat you get there faster. > > > In a sailboat you're already there." > > > > > > _______________________________________________ > > > > > > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > > > > > > _______________________________________________ > > > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > > > > _______________________________________________ > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > ------ End of Forwarded Message > > > _______________________________________________ > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
