B-52 Stratofortress in Color Screensaver - Version 1.0 The free aircraft screensaver, B-52 Stratofortress, contains 24 high quality color images of the B-52 Stratofortress long-range, jet strategic bomber. The Boeing B-52 Stratofortress is a long-range, jet strategic bomber flown by the United States Air Force (USAF) since 1954.