Development of 7000m work class ROV “KAIKO Mk-IV”

Japan Agency for Marine Earth Science and Technology (JAMSTEC) has started a new project “submarine resource research project” in April 2011. We decided to advance the development of work class ROV “KAIKO Mk-IV” as fourth KAIKO's vehicle applied for submarine resource exploration. “KAIKO Mk-IV” construction started in April 2011 and it completed in March 2013. Then, its sea trials have been carried out in FY2013-FY2015. This paper describes about the development of new ROV (vehicle) “KAIKO Mk-IV” and those equipment using advanced technologies and test results.