sentences: "Isabel" first sighted another ship on 5 December 1941, when she encountered a large, dark-gray ship flying no flag and apparently altering course frequently to try to move out of sighting range.On the morning of 6 December 1941, a Japanese Aichi E13A1 "Jake" reconnaissance floatplane from the seaplane tender "Kamikawa Maru" circled "Isabel" at an altitude of 1,000 feet (305 meters) and a range of 2,000 yards (1,830 meters).