The Iowa Class Battleships were the largest and final great battleships of the US Navy. They included the BB-61 Iowa, the BB-62 New Jersey, and the third ship, the famous BB-63 Battleship Missouri. These ships, which boasted an amazing 212,000hp allowing a 33knots max speed, were armed with massive 40.6cm main guns. The Iowa Class ships stretched 270.4m but were relatively thin, with only 33m max length, enabling these ships to pass through the Panama Canal. Being commissioned in June 1944, the USS Missouri took part in many operations during the Pacific War including bombardments on Japanese mainland and cak.