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