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The Boeing B-52 Stratofortress is an American long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air Force (USAF) since the 1950s, and NASA for nearly 50 years.
A Boeing B-52H Stratofortress in flight. The Boeing B-52 Stratofortress has been operational with the United States Air Force since 5 June 1955. This list is of accidents and incidents involving the B-52 resulting in loss of life, severe injuries, or a loss of an aircraft (damaged beyond repair).
The Boeing B-52 Stratofortress is a long-range, subsonic, jet-powered, strategic bomber operated by the United States Air Force (USAF) since 1955. The B-52A first flew in 1954, and the B model entered service in 1955. A total of 744 B-52s were built with the last, a B-52H, delivered in October 1962.
As the B-52 power requirements grew, the design evolved into a turbojet, the JT3. Pratt & Whitney designed the J57 to have a relatively high overall pressure ratio to help improve both thrust-specific fuel consumption and specific thrust , but it was known that throttling a single high-pressure-ratio compressor would cause stability problems.
The U.S. Air Force recently announced that the last squadrons of the legendary B-52's have returned home after concluding operations against ISIS. 11 photos of the legendary B-52 Stratofortress bomber
In 1961, the TF33-powered Boeing B-52H Stratofortress entered service. The "H" model of the B-52 was the only production variant of the heavy bomber to be fitted with turbofan engines, and is the only model remaining in United States Air Force service.
Low-level B-52 missions were typically flown at 300 to 500 ft (91 to 152 m) above ground level. Some of the aircraft stationed at Westover were loaned to other bases during the late 1960s and early 1970s, due to SAC use of later model B-52s in combat in Southeast Asia, beginning with Operation Rolling Thunder in March 1965.
The B-52 was not designed for this kind of operation. 56-0591, a B-52D, took off from Larson AFB, Washington, on 23 June 1959 and experienced a horizontal stabilizer turbulence-induced failure at low level and crashed. The modification process of the B-52 series began in 1961. [5]