Pilot's Flight Logbook, May 1952. This page from Lt. W.E. Bancroft's personal flight log documents patrol and proficiency flights in the Martin PBM-5 Mariner flying boat, based at Naval Air Station Alameda, California, during the final year of the Korean War. Meticulous handwritten entries record aircraft, flight duration, and crew role for each sortie, preserving a detailed firsthand account of a Navy patrol pilot's wartime service. Project: 218133