In 1958, a gallon of gas cost 30 cents, a mid-sized house could be purchased for $18,000 and Barksdale Air Force Base received its first B-52 Stratofortress. Since then, the aircraft has seen many changes and undergone several tests and upgrades.For the past 25 years, upgrading the B-52H Stratofortress has been the mission of the 49th Test and