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The B-17 evolved through numerous design advances [4] [5] but from its inception, the USAAC (from 1941 the United States Army Air Forces, USAAF) promoted the aircraft as a strategic weapon. It was a relatively fast, high-flying, long-range bomber with heavy defensive armament at the expense of bomb load.
As U.S. participation in the war started, the U.S. Army Air Forces drew up widespread and comprehensive bombing plans based on the Norden. They believed the B-17 had a 1.2% probability of hitting a 30 meters (100 ft) target from 6,100 meters (20,000 ft), meaning that 220 bombers would be needed for a 93% probability of one or more hits.
The B-17E (299O) was an extensive redesign of the previous B-17D. The most obvious change was the larger, completely new vertical stabilizer, originally developed for the Boeing 307 Stratoliner, and the addition of a tail gunner. Experience had shown the Flying Fortress was vulnerable to attack from behind.
The B-17G Flying Fortress was equipped with 11 to 13 machine guns and capable of a 9,600-pound bomb load. ... A B-17 with 13 people aboard crashed at a 2019 air show in Connecticut, killing seven ...
Contents. B-17 Flying Fortress units of the United States Army Air Forces. The Collings Foundation B-17G N93012 restored to represent B-17G Nine-O-Nine of the 323rd Bomb Squadron, one of two longest-serving B-17's of the 91st BG; the original "Nine-O-Nine" was scrapped after World War II in Kingman, Arizona. This is a list of United States Army ...
The P-63 overtook the B-17 on a descending trajectory during low-level maneuvers and impacted the aircraft from the port side, at a point just above and aft of the B-17's wings. The tail section of Texas Raiders was severed from the rest of the aircraft due to the collision and both aircraft were destroyed in the resulting impact with the ...
The Boeing B-17 Flying Fortress is an American four-engine heavy bomber used by the United States Army Air Forces and other Allied air forces during World War II. Forty-five planes survive in complete form, [1][a] including 38 in the United States with many preserved in museum displays. The number of operational B-17s has dwindled over time ...
The B-1B has a maximum speed of Mach 1.25 at higher altitudes. [40] [63] The B-1B's maximum takeoff weight was increased to 477,000 pounds (216,000 kg) from the B-1A's 395,000 pounds (179,000 kg). [40] [64] The weight increase was to allow for takeoff with a full internal fuel load and for external weapons to be carried.