![]() Preliminary SPECIFICATIONS B747-8I(Intercontinental) and B747-8F(Freighter)ġ nm.(nautical mile) = 1.15155 miles, 1 kt (knot) = 1.15155 mile / hr. The airplane can accommodate four additional main-deck pallets and three additional lower-hold pallets. The 747-8 Freighter will be longer than the 747-400F by 5.6 m (18.3 ft) and enjoy a maximum structural payload capability of 140 metric tonnes (154 tons) with a range of 8,275 km (4,475 nmi).Īlso powered by 787-technology engines, The 747-8 Freighter will have nearly equivalent trip costs and 14 percent lower ton-mile costs than the 747-400, plus 16 percent more revenue cargo volume.The additional 121 cu m (4,225 cu ft) of volume means The 747 Intercontinental will provide nearly equivalent trip costs and 10 percent lower seat-mile costs than the 747-400, plus 28 percent greater cargo volume. Using 787-technology engines, the airplane will be quieter and achieve better fuel economy. The 747-8 Intercontinental is stretched 5.6 m (18.3 ft) from the 747-400 to provide 467 seats in a three-class configuration and a 14,815-km (8,000-nmi) range. On December 4, 2009, Korean Air became the second airline customer for the -8I passenger model. Production of the first 747-8 Freighter began in Everett in early August 2008.In February 2009, only one airline customer (Lufthansa) had ordered the 747-8I passenger model. Boeing said that the new design would be quieter, more economical,Īnd more environmentally friendly than previous versions of the 747. The 747-8 was designed to be the first lengthened 747 to go in to production. However, the 747X family was unable to attract enough interest to enter production. The 747X was to carry 430 passengers up to 8,700 nmi (16,100 km). The 747X would increase the 747's wingspan to 229 ft (69.8 m) by adding a segment at the root. This price range reflects the difference in fuel types, with jet fuel. The cost of fueling a 747 can range from 50,000 to 200,000, based on the price of fuel at the time. Still configured in its flight test configuration, it was extensively restored in 20.Boeing had considered larger-capacity versions of the 747 several times. The wingspan of the Boeing 747 also helps it generate more lift, fly more efficiently. The aircraft's final flight occurred on April 6, 1995, when Boeing officially donated RA001 to the Museum after 5,300 flight hours. Planning for eventual donation to the Museum began in the mid-1980s. After 747 certification testing, the aircraft served for many years as a company testbed for technology development and new engine programs for other Boeing commercial jets, including the Pratt & Whitney PW4000 for the Boeing 777. The Museum's aircraft was the first 747 ever built, known as RA001. Other unique modifications include the enlarged "Dreamlifter" for 787 components, the YAL-1A Airborne Laser Testbed, and the Stratospheric Observatory for Infrared Astronomy (SOFIA). In 1990, two 747-200Bs were modified as VC-25As to serve as Air Force One, the U.S. Air Force "command post" platforms, designated E-3 and E-4. Several aircraft were produced to serve as U.S. Two 747-100s were modified to become Shuttle Carrier Aircraft for the NASA Space Shuttle Program. The airplane proved to be highly flexible, performing many missions that were not part of its original design specifications. The 747-8, with all-new wings and engines, entered service in 2011. In 1989, a major upgrade was introduced in the form of the 747-400, with a modernized two-crew flight deck and improved performance. The 747-300 followed in 1982, with an extended upper deck. A shortened version (747SP) debuted in 1976, capable of very long range flights. A "Combi" was soon offered to allow simultaneous carriage of passengers and cargo on the main deck. ![]() A freighter model, with a large nose cargo door, allows outsized payloads to be carried. Continued development in the ensuing years has increased payload, range, and capability with multiple 747 variants. The 747 quickly became a mainstay of the world’s international airlines. The first 747 engine, the Pratt & Whitney JT9D, was an equally challenging engineering effort it experienced numerous problems in initial service. First flight occurred on February 9, 1969, followed by an extensive test program. The leviathan 747 required an all-new factory, which was built almost simultaneously with the first 747 at Paine Field in Everett, Washington. It triggered a revolution in air travel and represents a significant milestone in the evolution of aviation design. With its massive size and signature upper deck "hump," the iconic 747 is one the most recognizable aircraft in the world. But the gamble paid off – over 1,500 units have been produced. Developing what was then the world's largest passenger aircraft was a formidable undertaking, requiring the company to risk much of its net worth. The growing worldwide demand for air travel during the 1960s led Boeing to launch the 747, the first wide-body jet. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |