B-29 "Double Trouble" is "Mister Bee"

This book is the story of Elmer C. Jones, a young man who grew up during the Great Depression and who joined the military in 1943, becoming a member of the Army's Air Corps in 1944. He was the radar observer of a B-29 Superfortress bomber crew flying 28 combat missions over Japan in 1945--13 bombing missions and 15 photographic reconnaissance missions, including the longest mission of the war: 4,650 miles in 23:00 hours. He accumulated 489:50 combat flying hours during the war.