This page from Lt. Wayne E. Bancroft's personal flight log book records a demanding month of advanced training in May 1950, flying the Martin PBM Mariner patrol flying boat. Entries for instrument flying, night navigation, and gunnery exercises - carefully tracked with training syllabus codes - illustrate the rigorous preparation U.S. Navy patrol pilots underwent just weeks before the outbreak of the Korean War, when many would be called into active combat operations. Project: 218132