tag:blogger.com,1999:blog-19245896.post4162307315829881573..comments2024-03-29T23:07:34.242+11:00Comments on Submarine Matters & Australian Nuclear Weapons: Why the Japanese proposal is low risk (PART ONE)Pete2http://www.blogger.com/profile/06134037393078707072noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-19245896.post-35823200742475170012016-04-12T21:05:36.727+10:002016-04-12T21:05:36.727+10:00Hi S
Yes the difference between Displacements tha...Hi S<br /><br />Yes the difference between Displacements that are:<br /><br />1. standard<br />2. surfaced<br />3. full load, and<br />4. submerged<br /><br />may have different meanings due too different country approaches as to the components/formula for each. Different languages.<br /><br />Then there is tonnes, short tons, long tons or just "t".<br /><br />Also the need for secrecy may change the numbers or round them off.<br /><br />Anyway, 3,600 tonnes is more appealing to a customer who want lots of room than 2,900 tonnes.<br /><br />I'll study these definitions as well.<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-69570738739252949442016-04-12T20:53:21.518+10:002016-04-12T20:53:21.518+10:00Hi Wispywood2344
Thanks for the Soryu diagrams an...Hi Wispywood2344<br /><br />Thanks for the Soryu diagrams and text.<br /><br />I'll turn them into an article in the next few days.<br /><br />Regards<br /><br />Pete Petehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-49997369439684675892016-04-12T02:17:26.936+10:002016-04-12T02:17:26.936+10:00Hi Pete
Three displacements (standard displacemen...Hi Pete<br /><br />Three displacements (standard displacement, full load displacement, submerged displacement) are used for Japanese submarine. JMSDF uses standard displacement in the Home Page and sometimes uses submerged displacement. But, as far as I know, full load displacement is not used. <br /><br />Full load is defined as the displacement of a vessel when floating at its greatest allowable draft as established by classification societies [1]. Submerged displacement is 4200t. Full load displacement which Ambassador Kusada meant is 3600t.<br /><br />According to JMSDF, standard displacement is 2950t [2, 3]. Definition of standard displacement [4] by JMSDF, which is different from definition [1] by the Washington Naval Treaty of 1922, is displacement in which weight of fuel, preliminary boiler water, fixed ballast, expendable supplies, food, wet canteen, fresh water, general service sea water, fluid for stability and fluid for defense are excluded from full load displacement.<br /> <br />[1] https://en.wikipedia.org/wiki/Displacement_(ship)#Loaded_displacement<br />[2]http://www.mod.go.jp/msdf/formal/gallery/ships/ss/soryuu/501.html<br />[3]https://en.wikipedia.org/wiki/S%C5%8Dry%C5%AB-class_submarine Definition of surfaced displacement in English wiki is not clear. <br />[4] “Standard of shipment allocation for surfaced war ship” established by MoD in Feb/18/1978 (currently not available).<br /><br />Regards<br />SAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-9444044167087427172016-04-12T00:46:27.485+10:002016-04-12T00:46:27.485+10:00Hi Pete.
I have estimated hull structure of Soryu...Hi Pete.<br /><br />I have estimated hull structure of Soryu Mk.2 and Soryu Aus.<br /><br />Soryu Mk.1 & Mk.2 & Aus.<br />http://blog.livedoor.jp/wispywood2344/others/Soryu_Cutaway_Variants.svg<br />Soryu Aus.<br />http://livedoor.blogimg.jp/wispywood2344/imgs/f/a/fa477755.png<br /><br />The differences are as follows;<br /><br />Mk.1 -> Mk.2<br />1)Abolition of Stirling AIP system [section 9]<br />2)Abolition of LABs (total 480 units) [section 5,8]<br />3)Adoption of LIBs (total 480(+approx.240) units) [section 5,8,13]<br />4)Existence of unassigned area (probably be assigned to accomodation) [sectoin ?,??]<br /><br />Mk.2 -> Aus.<br />1)Insertion of double-hull compartment [section 14]<br /> *Additional fuel tanks are installed outside the pressure hull<br /> **Maybe additional diesel generators (perhaps conventional 12V25/25SB) are installed inside the pressure hull<br /><br />Note that higher power generator system and high capacity LIBs make it possible to shorten the snorting time , that leads to lower indiscretion ratio (and perhaps extension of engine lifetime). <br />Whether new developed diesel generator system are exported or not is unclear, so there is some possibility of adopting conventional and relatively-powerless 12V25/25SB. <br /><br />For your information.<br /><br />Regards<br />Wispywood2344Wispywood2344http://blog.livedoor.jp/wispywood2344/noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-47430088826045304332016-04-11T23:39:48.228+10:002016-04-11T23:39:48.228+10:00"The Japanese proposal is low risk and meets ..."The Japanese proposal is low risk and meets Australia’s needs. It’s a proposal based on our accumulated experience and the proven technologies of the Soryu-class submarine, which is the world’s largest conventionally powered submarine. "<br /><br />Kockums couldn't had said it better.MHalblaubhttps://www.blogger.com/profile/14234020711635190127noreply@blogger.com