Thanks for the replies. So essentially I should do the dimensioning as though the mizzen was a backstay-less main mast (appropriately sized)....
Hello all, I'm working on a self-design, self build ketch. I have used ISO 12215 and Principles of Yacht design to guide most of the scantling...
Thanks for those. It makes sense and I Think I can integrate that into the design.
Hi All, I'm working on a 42 foot custom designed Wood/epoxy composite ketch. Attached is an image to illustrate what I am referring to. I've...
Earl, thanks for the advice! I'm wondering, did you do this before your strip planking was complete (i.e. with an exposed keel)?
Hi all, I'm building a 42' wooden ketch and I'm getting near to the point where I'm going to have to bore the propeller shaft through a 5"...
Hi all, I'm in the midst of building my own custom design 42' wooden ketch (Epoxy strip+veneer). The building is progressing well, but I would...
Alright. Thanks for the input. My main concern was about the remaining life forms in there. As far as the lumber that I am using is concerned,...
I'm working with a batch of Khaya Ivorensis raw lumber. (10" wide, 4/4" and 8/4", 10+' long, being used for laminating a 5"x10" keel). There...
Not to get philosophic on you, but curiosity is human nature. If I'm going to build a boat that will hold my life out of wood whose behaviour I...
Yes, that's definitely my next area to tackle. I want to be able to bond the wood better. The other thing is that the test harness was made of...
The test was basically meant to be performed using a vise. I've drawn up a picture meant to describe the various forces being created. The sample...
Final post, test results etc... I am posting the results of rolling shear test of Hard Maple (aka Sugar Maple) for posterity. The test was...
AH: Thanks for that write up. I've started doing some testing around the shop on maple as Tad suggested (especially regarding rolling...
Here's a link to a pdf where 6 oz. of glass is mentioned enough times that I consider it a good number. Tad, thanks again. Very much obliged.
Looking at the USDA Encyclopedia of wood, I find the Modulus of Elasticity of Sugar (hard) Maple to be 12,600 MPa with a density of .63. For White...
Tad: thank you very much. This is the information I was looking for.
Ha hah! You've spotted the pattern. I am indeed choosing local woods over imports even if sometimes imports cost cheaper (like Khaya)....
Butch H: Sorry no idea yet. I have come across many sources for that information (not the least GB's publications), however I haven't thoughtfully...
Tad: what do you guys do as an alternative to i-beam style keels? I've thought about this at length. My plan is to notch in the first layer of...
