What date was the US Navy's prewar buildup aiming for?
Short answerThe construction and commissioning pattern points toward a fleet prepared for major war around 1943-44, making December 1941 several years early.
NotesThe planned commissioning surge suggests that the US Navy expected its strongest position around 1943-44. Essex-class carriers ordered largely in 1940 were meant to launch in 1942 and enter service across 1943-44, while the Fletcher-class destroyer surge followed the same broad horizon. The Gearing class was authorized after war had already begun, and the shorter building cycles of smaller ships help distinguish planned expansion from an emergency response. December 1941 arrived roughly three years before the fleet expected its strongest concentration of new construction. Had the timetable held, Chester Nimitz might have reached Chief of Naval Operations instead of taking command of a Pacific Fleet shattered at Pearl Harbor.