This is the first ship I built, designed to imitate the US battleship Iowa-class Missouri. The battleship Missouri in history has witnessed that great moment and it has become famous throughout the world. However, with the advent of the carrier era, the battleship, the hegemon that dominated the ocean for several centuries, was gradually declining, and the service of ship-borne missiles made this marine hegemony withdraw from the stage of history. In May 1938, the U.S. Navy confirmed plans to build an Iowa-class battleship. From May 17, 1938 to July 19, 1940, a total of six Iowa-class battleships were approved for construction. During World War II, Iowa-class battleships mainly performed escort missions. On September 2, 1945, the Missouri became famous because of its participation in the surrender ceremony. Afterwards, the movie "Super Battleship" became the world's attention again. This work seeks to restore the glory of the battleship Missouri with a limited number of parts. The following are operating instructions:         Action group 1: VTOL controls the horizontal rotation of the front main turret, and Trim controls the barrel pitch;         Action group 2: After the VTOL control, the main turret rotates horizontally, and Trim controls the barrel pitch; Action group 3 controls the main gun launch;        Action group 4: VTOL controls the horizontal rotation of the side auxiliary gun turret, and Trim controls the gun pitch         Action group 4: VTOL controls the anti-aircraft gun's horizontal rotation, and Trim controls the pitch;