Retired Chief Master Sgt. Walter Olmstead Jr., a World War II veteran, visited Whiteman Air Force Base, Missouri and got a chance to see how U.S. Air Force bombers have evolved since his time in the service. In his 25-year military career, Olmsted logged more than 200 combat hours in World War II as a tail gunner of the B-17 Flying Fortress. He has also flown in the B-26, B-29 and B-50, among others, and was later part of the B-52’s maintenance crew.