Talk:J Class (yacht)

message: The article on Universal Rule doesn't seem to include mast height as a factor. Instead they have sail area. Also this article doesn't say what the product of the Universal Rule had to be.
:J-Class can be considered as a subset of the Universal Rule, as such I think details could be added, amongst which the mast weight of 5,500lb. Nuttyrave (talk) 09:16, 5 February 2009 (UTC)
replies: text: No, KZ-1 is not a J-class yacht.  She was built to exploit design loopholes in the America's Cup rule.  She was not built with any reference to or consideration of the J-Class rule Boatman 15:41, 17 February 2006 (UTC)

text: Only Shamrock V was J-class yacht. Shamrocks I to IV were cutters. Radomil talk 19:02, 9 December 2006 (UTC)

text: -> No. All Shamrocks were cutters, of which only Shamrock V was built to the J-Class rule. 1914 America's Cup defender Resolute was not built to the J-Class rule, but was converted to it in 1930 to make a trial horse for the purpose-built J-Class Enterprise. Bear in mind that the J-Class rule dates back to 1903 but no boat was built to it until 1930.Nuttyrave (talk) 15:20, 6 November 2008 (UTC)

text: I think the big change in 1930 was that rigging technology permitted the bermuda rig on very tall masts. This mature technology just coincidently appeared with the adoption of the J-Class for the 1930 America's Cup.Nuttyrave (talk) 15:25, 6 November 2008 (UTC)

text: done Nuttyrave (talk) 09:16, 5 February 2009 (UTC)
thread_title: Parameters of the J Class

message: the J Class book covers the genesis of the class, the original and current rating rules and each of the following boats in their own short chapter. The book starts with a list of the included diagrams, all carefully rendered by François Chevalier. These drawings have an important part to play in the revival of the class:
launch	yacht       	designer                        	lines	sailplan + hull profile	sailplan + hull profile	deck layout	deck layout
1893  	Britannia   	George Lennox Watson            	1893 	1931                   	1931                   	           	
1893  	Valkyrie II 	George Lennox Watson            	1893 	1893                   	1893                   	           	
1903  	Reliance    	Nathanael Greene Herreshoff     	1903 	1903                   	1903                   	1903       	1903
1908  	Shamrock    	William Fife III                	1908 	1908                   	1908                   	           	
1914  	Defiance    	George Owen                     	1914 	1914                   	1914                   	           	
1914  	Resolute    	Nathanael Greene Herreshoff     	1920 	1920                   	1929                   	           	
1914  	Vanitie     	William Gardner                 	1920 	1920                   	1929                   	1920       	1920
1914  	Shamrock IV 	Charles Ernest Nicholson        	1920 	1920                   	1920                   	           	
1927  	Katoura     	Starling Burgess                	1927 	1927                   	1927                   	1927       	1927
1928  	Astra       	Charles Ernest Nicholson        	1928 	1931                   	1931                   	1931       	1931
1928  	Cambria     	William Fife III                	1928 	1928                   	1928                   	1928       	1928
1929  	Candida     	Charles Ernest Nicholson        	1929 	1931                   	1931                   	1931       	1931
1930  	Enterprise  	Starling Burgess                	1930 	1930                   	1930                   	1930       	1930
1930  	Shamrock V  	Charles Ernest Nicholson        	1930 	1930                   	2000                   	2000       	2000
1930  	Weetamoe    	Clinton Hoadley Crane           	1930 	1930                   	1930                   	1930       	1930
1930  	Whirlwind   	Lewis Francis Herreshoff        	1930 	1930                   	1930                   	1930       	1930
1930  	Yankee      	Frank Cabot Paine               	1930 	1930                   	1930                   	1930       	1930
1930  	project     	John G. Alden                   	1930 	                       	                       	           	
1933  	Velsheda    	Charles Ernest Nicholson        	1933 	1933                   	1997                   	1933       	1997
1934  	Endeavour   	Charles Ernest Nicholson        	1934 	1934                   	1989                   	1934       	1989
1934  	Rainbow     	Starling Burgess                	1934 	1934                   	1934                   	1934       	1934
1935  	project     	Frank Cabot Paine               	1935 	                       	                       	           	
1936  	Endeavour II	Charles Ernest Nicholson        	1936 	1936                   	1936                   	1936       	1936
1937  	77A project 	Starling Burgess & Olin Stephens	1937 	                       	                       	           	
1937  	77B project 	Starling Burgess & Olin Stephens	1937 	                       	                       	           	
1937  	77C Ranger  	Starling Burgess & Olin Stephens	1937 	1937                   	1937                   	1937       	1937
1937  	77D project 	Starling Burgess & Olin Stephens	1937 	                       	                       	           	
1937  	77E project 	Starling Burgess & Olin Stephens	1937 	                       	                       	           	
1937  	77F project 	Starling Burgess & Olin Stephens	1937 	                       	                       	           	
1937  	uncompleted 	Tore Anton Holm                 	1937 	                       	                       	           	
The 23mR White Heather II and the A-class schooner Westward were the only other boats which ever raced with the J-Class. Both boats' lines could be included separately in the upcoming books "Mariette and the Herreshoff schooners" and "The Great Meter Classes", available shortly here. Nuttyrave (talk) 20:39, 15 May 2010 (UTC)
thread_title:  boat lines 

message: I made some changes and they were immediately reverted for purported "inaccuracies" .   I made the changes to make the page more readable and to bring the page into conformance with information found at other pages (specifically the page at Universal Rule).   So if what I added was inaccurate, so too is the page on the universal rule as well as the references therein.   If you are going to revert purported "inaccuracies" the burden is upon you to list these accuracies.  If the accuracies are not burdensome, I suggest correction (you know, actual editing...) rather than wholesale revision to the previous.  If the inaccuracies are truly problematic then the burden is upon you, also, to change the other pages that reflect such purported inaccuracies.  TreebeardTheEnt (talk) 16:53, 23 January 2014 (UTC)
replies: text: I support improvements, but why did you add the Skene citation to the rating formula if you were not going to use it, gut the formula, use the 0.2 index which was pre-J-Class and introduce inaccuracies such as a rating of 88ft? The max is 76ft. I had previously worked on the French page, where fellow contributors did a fantastic job. Please read it and advise.. signed:Donan Raven (talk) 20:27, 23 January 2014 (UTC)
replies: text:  I accidentally transposed 88 ft when working from the table of classes at Universal Rule  (I-Class max R = 88ft).  I have fixed that.  A  Note that the Universal rule wasn't put in place specifically to create classes, that was sort of the cart after the horse, and perhaps that should be noted here as well.   TreebeardTheEnt (talk) 17:35, 24 January 2014 (UTC)
thread_title: Changes of January 2014 

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thread_title:  Copyright problem removed 

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thread_title:  External links modified 

message: Conversion to SI units needed. 130.233.200.96 (talk) 11:46, 6 June 2023 (UTC)
thread_title:  Conversion to SI