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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 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 tail gunner is located below the fin. All B-17s have a retractable tail-wheel landing gear. The B-17G weights 32,720 pounds (14,840 kg) empty. Fully armed and loaded, a B-17 can weigh 65,600 pounds (29,800 kg) Payloads ran between 4,000–5,000 pounds (1,800–2,300 kg), but they could carry up to 17,600 pounds (8,000 kg) for shorter missions.
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.
By 1943 the new Boeing B-29 Superfortress was flying with R-3350s. The engines remained temperamental, and the rear cylinders tended to overheat, partially due to inadequate clearance between the cylinder baffles and the cowl. A number of changes were introduced to improve cooling, and the aircraft was rushed into service in the Pacific in 1944 ...
The Boeing B-52 Stratofortress is an American long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air Force (USAF) since the 1950s, and NASA for nearly 50 years.
The B-25G followed the success of the prototype XB-25G and production was a continuation of the NA96. The production model featured increased armor and a greater fuel supply than the XB-25G. One B-25G was passed to the British, who gave it the name Mitchell II that had been used for the B-25C.
The Boeing Model 307 Stratoliner (or Strato-Clipper in Pan American service, or C-75 in USAAF service) is an American stressed-skin four-engine low-wing tailwheel monoplane airliner derived from the B-17 Flying Fortress bomber, which entered commercial service in July 1940.