The IJN Ibuki was an Unryu-class aircraft carrier of the Imperial Japanese Navy that was named after a heavy cruiser of the same name that had been previously sunk by an American submarine.
During the Battle of the South China Sea, Ibuki was hit on her starboard side by five torpedoes and capsized within ten minutes. Soon afterwards, British dive bombers would hit her forward magazines with a 1000 pound armor piercing bomb sinking her.[1]