The Shinano, a Japanese carrier built to replace the carriers Japan lost at the Battle of Midway, was sunk by the US submarine Archerfish during the Japanese carrier's sea trials in November 1944.
- Due to the secretive construction of the Shinano, US naval intelligence initially misidentified it.
- It was designed as a support ship for the broader carrier fleet, housing 47 self-defence fighters.
- Captain Toshio Abe of the Shinano went down with his ship.
- Archerfish, some found in Northern Australia, prey on land-based insects by ejecting water droplets from their mouths.
- Four out of the six torpedoes from Archerfish hit their target.