The B-52 Stratofortress™ is an American long-range, subsonic, jet-powered strategic bomber. It was designed and built by Boeing, which has continued to provide support and upgrades. The B-52 has been a mainstay of the United States Air Force since 1955 and is expected to remain in service through 2050. The bomber can carry up to 70,000 pounds of weapons and has a combat range of around 8,800 miles.