He's heard that sound before

With the B-17 "Aluminum Overcast" firing up in the background, 93-year-old Frank Girman of Brunswick, Ohio, poses for a picture. He was flight engineer and top turret gunner on 35 B-17 missions over Germany in World War II. Part of the 546th Squadron of the 384th Bomb Group of the 8th Army Air Force, he flew out of Northamptonshire, England.