The Imperial Japanese Navy's Yamato – along with her sister ship Musashi – was the largest battleship ever constructed. her nine 46cm (18.1-inch) Type 94 main guns employed were the largest ...

What You Need to Know: After years of analysis, Microsoft co-founder Paul Allen's team discovered the wreck of the Japanese battleship Musashi in 2015, 3,280 feet deep in the Philippine Sibuyan Sea.