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| Historic NACA test aircraft in hangar NACA Aircraft in hangar clockwise from front center: YF-84A, D-558-1, D-558-2, XB-47, X-1 ship 2, and XF-92A. Behind the B-47 L-R: X-4, F-51, D-558-1, and X-5. |
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| Boeing XB-47 takes off with JATO assistance Boeing's swept-wing XB-47 won the Air Force's postwar bomber competition and swiftly transformed the XB-46 and the XB-48 into aviation footnotes. Six Allison J35-2 turbojet engines slung in pods beneath the swept-back wings gave the prototype Stratojet nimble performance, and helped to validate a design concept still widely used today. Although uprated J47-GE-3s were soon substituted, the B-47 also carried mountings for 18 solid-fuel booster rockets in the aft fuselage to shorten the takeoff roll. Here, a XB-47 lifts off from Rogers Dry Lake with JATO assistance during Limited Heavy Weights Performance Tests at the Air Force Flight Test Center. Note the T-33 chase plane with its landing gear already retracted to keep up with the speedy B-47. |
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| Boeing XB-47 takes off from Edwards AFB Boeing's swept-wing XB-47 won the Air Force's postwar bomber competition and swiftly transformed the XB-46 and the XB-48 into aviation footnotes. Six Allison J35-2 turbojet engines slung in pods beneath the swept-back wings gave the prototype Stratojet nimble performance, and helped to validate a design concept still widely used today. Although uprated J47-GE-3s were soon substituted, the B-47 also carried mountings for 18 solid-fuel booster rockets in the aft fuselage to shorten the takeoff roll. |
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| Boeing XB-47 at Wichita, Kansas Side view of Boeing XB-47 at Wichita, Kansas. |
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| NACA Boeing B-47a on ramp, Edwards AFB Boeing B-47a (NACA 150) shown on the ramp near NACA High-Speed Flight Research Station at South Base of Edwards Air Force Base, California, in 1953. The B-47a Stratojet's wing is mounted high on the fuselage with a sweep back of 36 degrees and a span of 116 feet, with wing vortex generators installed. A two engine pod under each wing, and an additional engine pod at each wing tip using General Electric J-47-GE-23 turbojets. The airplane is fitted with a nose boom for measuring airspeed, altitude, angle-of-attack and angle-of-sideslip, and an optigraph for measuring the movements of target lights on the wing and tail. |
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| Boeing XB-47 at roll out, Wichita, Kansas, 1950 Boeing Airplane Company today released for the first time flight photographs of its newest model Air Force Stratojet bomber. Wichita, Kansas, August 11, 1950. The photographs were taken during a recnt test flight near here of one of the production model B-47A Stratojets, fastest known bomber in the world. Boeing is building a substantial quanitity of the Stratojets at Wichita, the first of the new planes having been rolled March 1 from the assembly line. The swept-wing bomber has a top speed of more than 600 miles an hour. It is powered by six General Electric J-47 turbo-jet engines, has a maximum gross takeoff weight of more than 186,000 pounds and can carry more than 20,000 pounds of bombs. An earlier model Stratojet, one of the two original XB-47's, last year spanned the nation from Moses Lake, Washington, to Andrews Air Force Base, Maryland, in 3 hours 46 minutes at an average speed of 607.8 miles per hour. |
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| NACA XB-47 on ramp during pre-flight NACA Boeing XB-47 Stratojet on ramp during pre-flight at Wichita, Kansas. This XB-47 will fly to Edwards Air Force Base for testing. |
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| Boeing XB-47 just before take off Aft view of Boeing XB-47 just before take off to Edwards Air Force Base, California. Note the "RATO", Rocket Assist Take Off, ports on the aft fuselage. JATO stands for 'Jet-assisted take off' (and the similar RATO for 'Rocket-assisted take off'). In the JATO and RATO systems, additional engines are mounted on the airframe which are used only during take off so plane can carry heavy loads. |
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| Test pilot Stan Butchart climbing into B-47 Test pilot Stan Butchart climbing into NACA Boeing XB-47 for test flight at Dryden Flight Research Center, Edwards Air Force Base, California, July 14, 1954. |
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| Test pilots & crew after XB-47 test flight In 1954 after a research flight in the Boeing XB-47A Stratojet crew chief Wilbur McClenaghan (center) pilots Joe Walker on the viewer's left and Stanley Butchart on the right. Data system technician Merle Curtis, in coveralls, is busy checking the airdata head mounted on the nose boom with the help of Instrumentation Crew Chief Raymond Langley. The door to the cockpit area is open showing a view of the ladder that folds down to be used by the pilots to enter and exit. Edwards Air Force Base, California, September 17, 1954. |
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| Boeing B-47 and Lockheed F-80 chase plane Boeing B-47E-65-BW (S/N 51-5257, the last Boeing-built block 65 -E model) during rocket-assisted take off test, being chased by a Lockheed F-80 jet. |
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| Boeing B-47 rocket-assisted take off Boeing B-47B rocket-assisted take off at Edwards Air Force Base, California. April 15, 1954. The "RATO", Rocket Assist Take Off, ports on the aft fuselage. JATO stands for 'Jet-assisted take off' (and the similar RATO for 'Rocket-assisted take off'). In the JATO and RATO systems, additional engines are mounted on the airframe which are used only during take off. Rare color photograph. |
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| Boeing B-47 rocket-assisted take off Boeing B-47 rocket-assisted take off at Edwards Air Force Base, California. |
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| First Boeing XB-47 rocket-assisted take off First Boeing XB-47 rocket-assisted take off at Edwards Air Force Base, December 31, 1948. |
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| NACA Boeing XB-47 Stratojet during landing N.A.C.A. Boeing B-47A Stratojet landing at Edwards Air Force Base, California. The drag chute was used on landings to help brake the airplane's speed. The B-47A fuselage was 106 feet 11 inches in length. The average gross weight was 115,000 pounds. Accommodations were for two pilots and a navigator with the aircraft being instrumented for aeroelasticity studies. |
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| Boeing B-47 Stratojet in flight S.A.C. Boeing B-47 Stratojet aircraft in flight. |
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| Boeing B-47 Stratojet in flight Boeing B-47 Stratojet in flight. |
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| SAC B-47 bomber in flight S.A.C. "Strategic Air Command" Boeing B-47 Stratojet bomber in flight. |
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| S.A.C. B-47 bombers on tarmac S.A.C. B-47 bombers on tarmac ready for takeoff during the "Cold War" years. |
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