Thanks Bob. I will measure. How much do you guess the rudder weighs? This solid teak rudder on my M15 is heavy it seems. Sent from BlueMail On Jun 20, 2018, 3:00 PM, at 3:00 PM, Bob Eeg <montgomeryboats@hotmail.com> wrote:
Our Rudders on our new M 15s are mahogany and 42 inches overall length. The same as Jerry’s specification. They work well. Bob
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On Jun 20, 2018, at 1:55 PM, Doug <doug9326@gmail.com> wrote:
This rudder is solid one piece of teak. It is shaped but no idea if its the right shape. Guess I need to run into another M15 owner and compare rudders. Wait, that doesn't sound right!!
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On Jun 20, 2018, 2:45 PM, at 2:45 PM, Dave Scobie <scoobscobie@gmail.com> wrote: Doug:
If the rudder was made by Jerry it should be mahogany. As I've no access to a M15 will need to have another person report the measurements or Jerry will comment.
Being short is more of an issue than long. Jerry designed the boat to have a good amount of rudder depth. 'about 1" thick is likely close to correct for a M15/17 width/cord.
Next is shape. Jerry is pretty particular that shape is correct. See -
http://www.sagemarine.com/SCA_articles/SCA_pdf/smalltalk_55.pdf
(Link will open a PDF)
Rudder shape should be an NACA0012.
Using a poorly shaped or matched rudder to the boat will make the boat sail POORLY! A poorly sailing boat is one that isn't going to be used. This is also why your boat should also have sails that are not work out - if the sails on your boat are original or older than 10 years it is time for new ones! #1 reason most boats sail poorly is blown out sails!
:: Dave Scobie :: M17 #375 SWEET PEA - m17-375.com
On Tue, Jun 19, 2018, 9:06 PM doug <doug9326@gmail.com> wrote:
Having just bought a M-15 from 1980, I am wondering if the rudder that I have is the right length and weight. This one is made of teak, solid teak over an inch thick. What is the length of the standard rudder for a M-15 and it will be used for cruising and day sailing, not racing if that makes a difference. I sure appreciate the combined knowledge and experience of this group. I saw it in action today in regards to another issue that came up here. Thanks.
Doug M-15, 1980