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Question for Jacques and other designers........
Posted: Tue Aug 03, 2004 10:49 pm
by cvlngineer
I ran across this school that offers a course program in Naval Architecture/Yacht Design. It looks very interesting. What is your take on it? Here is the site:
MacNaughton Yacht Design School
Thanks,
cvlngineer
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http://www.freewoodplans.net
Posted: Tue Aug 03, 2004 11:07 pm
by anonymous
I've seen those courses. Can't really offer opinion without having taken them.
But I will say that I've e-mailed Tom MacNaughton quite a bit these last couple of weeks. He seems very knowledgable about wooden boat design/building and is a very friendly person. Site says he's versed in other materials but I've only discussed wooden boats with him.
I bought a couple of his publications and they are very straightforward and easy to follow.
Can't offer intelligent opinion about their design quality. Some look a little funky to me but different strokes for different folks.
Posted: Wed Aug 04, 2004 7:09 pm
by jacquesmm
If you are serious about yacht design, take the Westlawn course.
Mac Naugthon is OK but, while quite good at designing heavy wooden boats, I don't think you will learn much about modern materials and methods with his school.
Westlawn's new director is Dave Gerr.
Posted: Wed Aug 04, 2004 9:32 pm
by cvlngineer
Thanks for the info. The Westlawn course does look to be better. I am just pondering the notion of learning more about the subject. It looks to be very interesting, and could be a fun way to use my engineering degree, while making a little money on the side.
cvlngineer
Posted: Thu Aug 05, 2004 1:07 am
by cvlngineer
Do any of you know the approximate values for the tensile, compressive, and shear strength in a typical glass over plywood joint?
cvlngineer
Posted: Thu Aug 05, 2004 8:16 am
by Oceola
Cvlngineer,
Do a Google search for "Recreational Marine Industry". There are enough tech. subjects on epoxy, foam core , etc. related, to satisfy even the most avid boat builder/engineer.
Oceola
Posted: Thu Aug 05, 2004 9:04 am
by jacquesmm
cvlngineer wrote:Do any of you know the approximate values for the tensile, compressive, and shear strength in a typical glass over plywood joint?
cvlngineer
You mean the properties of that sandwich?
You are not going to find that in any book. There are several ways to get those figures:
- calculate the laminate stack from scratch. You will be left with a pure theoritical value that has little to do with what you can produce in the real world.
- test samples in a lab as we did 12 years ago
- make you own testing equipment, we still do that:
http://bateau2.com/content/view/95/28/
That page shows only one test, not show is a peel test and a fatigue test done with an excentric wheel.
You will find values for more traditional materials in engineering books or in this book:
http://www.boatplans-online.com/proddet ... rod=BFP001
There is also :
marinecomposites.com
Start with the book. It is a great introduction to yacht design.