http://www.navyrecognition.com/index.php/news/naval-exhibitions/2017/mast-asia-2017-show-daily-news/5283-mast-asia-2017-japan-s-atla-unveils-future-multi-purpose-trimaran-concept.html

こういう内部構造
https://www.navyrecognition.com/images/stories/asia/japan/exhibition/mastasia_2017/news/ATLA_Future_Multi_Purpose_Trimaran_MAST_Asia_2017_Naval_Defense_Exhibition_Tokyo_Japan_news_3.jpg
https://www.navyrecognition.com/images/stories/asia/japan/exhibition/mastasia_2017/news/ATLA_Future_Multi_Purpose_Trimaran_MAST_Asia_2017_Naval_Defense_Exhibition_Tokyo_Japan_news_4.jpg