ProtectedShips Second Japanese carrier’s F-35B conversion By ANI - April 23, 2022 0 847 Helicopter Destroyer (DDH) JS Kaga in the dry dock for its F-35B conversion work. Picture from 5 April 2022 by JMSDF Escort Flotilla 4. DDH “Kaga” is being modified in order to operate the F-35B fighter. The battleship Yamato (once the pride of the Imperial Japanese Navy) was built on the same site, Naval News reports. Please Login to view this content. (Not a member? Join Today!)