tag:blogger.com,1999:blog-19245896.post9213508229879299046..comments2024-03-29T14:20:26.555+11:00Comments on Submarine Matters & Australian Nuclear Weapons: Japan Increasingly its Submarine Propulsion (Diesels & Motors), Soryu TABLEPete2http://www.blogger.com/profile/06134037393078707072noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-19245896.post-8768447009401149392018-10-04T15:28:28.384+10:002018-10-04T15:28:28.384+10:00Hi Pete
First LIBs Soryu- class (27SS), Auryu was...Hi Pete<br /><br />First LIBs Soryu- class (27SS), Auryu was launched on 04/Oct/2018 [1]. Length of Auryu (84m) is as same as that of LABs-Soryu. 27SS equips with neither two large LOx tanks nor 4 Starling AIPs suggesting significant increase in numbers of batteries and improvement of endurance.<br /><br />Ministry of Defense is planning to appoint woman submariners [2] in 2023. Equipment (such as women’s room and toilet) that considers the gender is needed [3] and affects improvement of endurance of 27SS.<br /><br />[1] http://www.sankei.com/west/news/181004/wst1810040017-n1.html<br />[2] https://www.sankei.com/west/news/180831/wst1808310047-n1.html<br />[3] Ordinance on Industrial Safety and Health Part III Chapter IIV Cleaness (Article 628)<br />The employer shall install lavatories as provided by followings. “Tto be constructed separately for men and women. “ “To provide one or more toilets for every 20 women or less working at the same time.”<br /><br /><br />Regards<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-85683617484558037982018-02-13T23:06:14.998+11:002018-02-13T23:06:14.998+11:00Hi Anonymous
Thanks for your suggested changes.
...Hi Anonymous<br /><br />Thanks for your suggested changes.<br /><br />I'll alter the text accordingly tomorrow.<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-13729013299583120182018-02-13T19:41:34.081+11:002018-02-13T19:41:34.081+11:00Hi Pete
Japanese submarine does not equip with re...Hi Pete<br /><br />Japanese submarine does not equip with reduction gear, and its speed is electrically adjusted. DC motor of Oyasho and AC motor (PMSM) of Soryu have different adjustment system. In Soryu MKI (SMC-8), maximum silent speed which is bigger than 6knot/h, may correspond to maximum output at single operation by small roter. In Soryu MKII (SMC-8B),incleased maximum silent speed for longer period is expected.<br /><br />Since 20knot/h for 5min is limitation of SMC-8 as a machine, achieving 20knot/h for 1h requires big modification such as increased cooling system, bigger roter and stator, inforced bearing and shaft. Speed of submarine is propotional to cubes of output of then propultion motor, and then 10% increase in maximum speed (from 20knot/h to22knot/h) needs 33% increase in output (from 5.9MW to 8MW), and this also requires big modification. These modification may cause additional vibration.<br /><br />Achieving higher silent speed for longer time at least within the framework of current output is most realistic.<br /> <br />Regards<br />Anonymousnoreply@blogger.com