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The Boeing B-52 Stratofortress is an ... Although the full-size mock-up inspection in April ... the F130 re-engine program maintains eight engines on the B-52.
Military variant of the BR700-725 with a 17,000 lbf (75.62 kN) maximum rating for the Boeing B-52 Stratofortress. [27] BR700-TP Turboprop variant rated at 7,460 kilowatts (10,000 shaft horsepower) and proposed for the European Future Large Aircraft (which became the Airbus A400M Atlas military transporter/tanker). [28]
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.
In 1955, the USAF issued requirements for a new bomber combining the payload and range of the Boeing B-52 Stratofortress with the Mach 2 maximum speed of the Convair B-58 Hustler. [7] In December 1957, the USAF selected North American Aviation 's B-70 Valkyrie for this role, a six-engine bomber that could cruise at Mach 3 at high altitude ...
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
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. It is expected to remain as a mainstay of the Air Force heavy bomber fleet until at least 2040, with options for replacing the 8 TF33 engines with more modern ...
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