The 1941 Grayback Patrol
Once her commissioning was successful, Grayback went into full cruise under the guide and command of Lieutenant Willard A. Saunders on Long Island Sound. This launch came as a test for the submarine to see its capabilities as well as for crew members to get familiarized with her technicalities. Once all was according to plan, the Grayback went on a patrol where she covered parts of the Caribbean and the Chesapeake Bay in September 1941.
Beginning of the Journey Through WWII
After going through a series of checks and maintenance at the Portsmouth Naval Shipyard on the Maine Coast, she made her way back to Pearl Harbor in February 1942. Upon arrival, the U.S. was already in the Second World War, and things were about to get busy for the sub and her crew. The first cruise into war took place on February 15 when it sailed along the Pacific to the coasts of the island of Guam, where Japan invaded in 1941.