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The sole XB-44 Superfortress was a B-29 Superfortress converted to test the possibility of using the R-4360 radial engine.. Development of an improved B-29 started in 1944, with the desire to replace the unreliable Wright R-3350 Duplex-Cyclone engines with the more powerful four-row, 28-cylinder Pratt & Whitney R-4360 Wasp Major radial engines, America's largest-ever displacement aircraft ...
The first YF-93 in flight. The prototypes, serial numbers 48-317 and -318, began flight tests in 1950 and were entered in a flyoff against the other penetration fighter projects, the XF-88 and XF-90; the XF-88 Voodoo was declared the winner. None of the projects would be ordered.
United Airlines Flight 93 was the fourth and final passenger jet to be commandeered by terrorists on September 11, and the only one that did not reach a target intended by al-Qaeda. The hijacking was supposed to be coordinated with that of American Airlines Flight 77, which
The Boeing C-97 Stratofreighter is a long-range heavy military cargo aircraft developed from the B-29 and B-50 bombers. Design work began in 1942, the first of three prototype XC-97s flew on 9 November 1944 and the first of six service-test YC-97s flew on 11 March 1947.
The Lucky Lady II was a B-50 of the 43rd Bombardment Group, equipped with 12 .50-caliber (12.7mm) machine guns. For its circumnavigation mission, a fuel tank was added in the bomb bay for extra range. The mission required a double crew with three pilots, under the command of Capt. James Gallagher. The crews rotated in shifts of four to six hours.
A second flight will take place in October 1948 and will be successful. October 14 – U.S. Air Force Captain Chuck Yeager takes the rocket-powered Bell X-1 past the speed of sound in the first controlled, supersonic, level flight. The flight, which achieves Mach 1.06, sets a new world air speed record of 807.2 mph (1,299.1 km/h). A few days ...
Only two prototypes were built each of the XF-11 and the XF-12 were ordered into service by the U.S. Army Air Forces, [3] as the requirement evaporated after World War II ended, while the cheaper off-the-shelf Boeing B-29 Superfortress and Boeing B-50 Superfortress could temporarily fill the role until the jet-powered Boeing RB-47 Stratojet ...
The MD-80 series, the first derivative or the second generation of the DC-9 family, entered service in 1980.The aircraft series was originally designated as Series 80 or stylized as the Super 80, [5] which was a 14 ft 3 in (4.34 m) lengthened Series 50 with a higher maximum take-off weight (MTOW) and higher fuel capacity, as well as next-generation Pratt and Whitney JT8D-200 series engines and ...