Heading to Pearl Harbor
After conducting further maintenance on the Grayback at Portsmouth Naval Shipyard situated on the Maine coast, the Grayback set course for Pearl Harbor in 1942. February 15thwas the date that the Grayback embarked on her first wartime patrol.
Her First Wartime Patrol
The Grayback set sail into the Pacific and cruised along the island of Guam, which was where the Japanese had attacked at the end of 1941. In addition to this, the Grayback also traveled to the Saipan coast, which was also Japanese territory.