Given an order from U.S. Navy in 1933, PBY Catalina was to become one of the most important seaplane of World War II, being used by the United States and its allies in missions of maritime patrol, anti-submarine and even as torpedo bomber. Although sub powered, requiring much the pilot, it was robust and reliable, having accomplished important milestones, such as the location of the Bismarck, which culminated in its sunking.