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A jet engine afterburner is an extended exhaust section containing extra fuel injectors. Since the jet engine upstream (i.e., before the turbine) will use little of the oxygen it ingests, additional fuel can be burned after the gas flow has left the turbines. When the afterburner is turned on, fuel is injected and igniters are fired.
The B-52's US$72,000 cost per hour of flight is more than the B-1B's US$63,000 cost per hour, but less than the B-2's US$135,000 per hour. [ 232 ] The Long Range Strike Bomber program is intended to yield a stealthy successor for the B-52 and B-1 that would begin service in the 2020s; it is intended to produce 80 to 100 aircraft.
The only active operational model of the B-52 is the B-52H. It is currently stationed at three USAF bases, flown by four wings: [1] 2nd Bomb Wing (AFGSC) – Barksdale AFB, Louisiana. 11th Bomb Squadron (B-52H, Tail Code: LA, Gold Tail Stripe) 20th Bomb Squadron (B-52H, Tail Code: LA, Blue Tail Stripe)
The J85 was originally designed to power a large decoy missile, the McDonnell ADM-20 Quail.The Quail was designed to be released from a B-52 Stratofortress in-flight and fly for long distances in formation with the launch aircraft, multiplying the number of targets facing the SA-2 surface-to-air missile operators on the ground.
The General Electric J79 is an axial-flow turbojet engine built for use in a variety of fighter and bomber aircraft and a supersonic cruise missile.The J79 was produced by General Electric Aircraft Engines in the United States, and under license by several other companies worldwide.
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 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). Incidents in which the aircraft was damaged but repaired are not included.
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.