Canting Keel Design

[Marvic]

Hi All,

Am currently undertaking some calculations for a Mini transit canting keel. I think there was an articule in Seahorse a year or two back on canting keel calculations, does anyone have that articule or any information like this?

[Ilan Voyager]

Very delicate design. Definitely out of reach of an amateur who will have as only source a magazine article!
It's a major structural design with delicate mechanical devices and needs a first class fabrication...if you want to keep it light on a race boat. A fortiori on a small ultra light race boat.
A lot of accidents involving canting keels have resulted in many deaths; visibly not all is known about canting keels design specially the quantification of the stresses.
Have you the means of dynamic structural calculations? Even on a Mini Transat I wouldn't adventure lightly in that.
Another and better possibility is to buy a proven design (by proven I mean: several made, at least 2 years old and no failure, or even another mechanics problems) to a NA or NE.

[Velsia]

Basic engineering principles should cover the stresses on the pin/canting lines frame attachments, ect. Its the unknown dynamic stresses such due to the sea and/or human error which are the hard ones. If you do find any articles let me know