Hello, In the rule 2012, I note that the design area factor (Fd) is not linked with the ratio Ad/Ar, but on the stiffener space for the craft <...
Hello, Do you know why the calculation of Kar is not the same for sailing craft and planing craft ? The Kar of a planing craft vary with the...
Hello, In ABS HSC rule, the Fd (Design area factor) is given by a diagram ; do you know the mathematic formula used for calculating the Fd ?...
Thank you again. If my unterstanding is correct, the "standard" formula of inertia for stiffener concern especially the "low end manufacturing"...
Hello, Thank you for your answers. In fact, I am surprised by the difference of allowable deflection for a stringer (or a transverse frame) : 1...
Thank you very much for your answer.
Hello, I don't understand the formula used by ISO 12215-5 for calculate the minimum moment of inertia for a GRP stiffener. In DIS 2004, the...
Thank you very much BR Jacques
Hello Ignacio, Thank you very much for your answer. In fact, in my question, I had supposed that the crown stiffener is 18 % of the...
Hello, Can I submit you an example of calculation for a transverse frame for a sailboat with ISO 12215-5 ? The boat had a Lwl of 9 m and a...
Hello, You'll find attached the patent of Hasler and Major.
Hello, Thank you for your answers. I agree with Gonzo : the vane gear of Marin Marie is the first windvane on a "true" boat. But I am...
Thank you very much for the information.
Hello, I had interested by the first "vane gears" with trim tab. I had some informations about the vane gear of Buttercup, designed by...
Thank you very much for your answer. But it seems to me that ABS ORY take in account the curvature factor only for the plating, but not for the...
Thank you for your answer. In fact, I thinked to a sailboat : as the curvature is "soft", it is difficult to slit the frame in two part :...
Hello, A little question about the sketch given by RXComposite : il seems to me that the L.R. and the ABS rules have different interpretation on...
I think that you can have several "level" of structure on a deck : for example : 1e level : deck longitudinal (supporting the deck plating) =>...
It seem to me that : A beam is a secondary stiffener, witch "support" the plating A girder is a primary stiffener, witch "support" the secondary...
Thank you very much