Talk:Ship stability

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Again, I agree. Cruise ships are not as vulnerable to capsize as the original auther would have us believe. In addition, the angle of heel is not an indication of stability- a ship may lie at 20deg very comfortably and never capsize even in the roughest seas. I have added the required stability section as a start. I'm not convinced it should be merged with the other page- I think conditions and general stability constitute different topics.--Dj245 14:04, 2 July 2007 (UTC)

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I don't see how this article adds any value to the growing number of articles on Naval Architecture that seem to be saying the same thing different ways - I suggest removing it. The article attempts to cover too many topics at once. There are also errors in the text : The fins, paravanes, etc. are active and passive roll control devices. They do not improve or detract from stability they merely reduce roll amplitude. Finite Element Analysis is used to calculate stresses in structure not stability. I could go on. Jmvolc 02:55, 27 August 2007 (UTC)

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First of all, some of the other pages on naval architecture are much worse. See Stability conditions (watercraft) for a good example. That one appears to be written from the perspective of a deck officer- the words "chief mate" appear frequently throughout the article. I'm not sure where to begin to start fixing that one. fins, vanes, and other such devices affect the perceived stability of the vessel. It could also be argued they affect dynamic stability. Static heeling loads are not affected by these systems but shock loads such as waves are. I think they deserve to be included. Stress calculations of complicated structures is only one application of FEA. Finite element analysis is used in many other applications. Splitting the object up into many small elements and then solving simultaneous equations is a FEA analysis.

[edit] Merge discussion

Please conduct merge discussion at: Wikipedia_talk:WikiProject_Ships#Stability. Regards, The Land (talk) 17:50, 28 December 2007 (UTC)