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A Boeing 787 Dreamliner of United Airlines landing at Beijing Capital International Airport on 28 December 2018.. A wide-body aircraft, also known as a twin-aisle aircraft and in the largest cases as a jumbo jet, is an airliner with a fuselage wide enough to accommodate two passenger aisles with seven or more seats abreast. [1]
It entered service with Pan Am on January 22, 1970. The 747 was the first airplane called a "Jumbo Jet" as the first wide-body airliner. The 747 is a four-engined jet aircraft, initially powered by Pratt & Whitney JT9D turbofan engines, then General Electric CF6 and Rolls-Royce RB211 engines for the original variants.
The Boeing 747-400 is a large, long-range wide-body airliner produced by Boeing Commercial Airplanes, an advanced variant of the initial Boeing 747.The "Advanced Series 300" was announced at the September 1984 Farnborough Airshow, targeting a 10% cost reduction with more efficient engines and 1,000 nautical miles [nmi] (1,900 km; 1,200 mi) of additional range.
Having experienced difficulties with some of its military programs, Lockheed was eager to re-enter the civilian market with a smaller wide-body jet, and its response was the L-1011 TriStar. Douglas Aircraft answered American Airlines with the DC-10 , which had a similar three-engine configuration and dimensions. [ 7 ]
The Pratt & Whitney JT9D engine was the first high bypass ratio jet engine to power a wide-body airliner. [2] Its initial application was the Boeing 747-100 , the original "Jumbo Jet". It was Pratt & Whitney 's first high-bypass-ratio turbofan.
Compared to the 747-8I, the upcoming 777-9X "mini-jumbo jet" is projected to have a lower fuel cost per seat mile and greater cargo capacity, though it has a lower passenger capacity and higher list price; consequently, the 777-9X has totaled more orders than the 747-8I due to airlines placing a high value on fuel efficiency. [98] [99]
N747PA was completed on February 28, 1969. Originally registered as N732PA, it was re-registered to N747PA early on. The aircraft was used by Boeing for flight testing before being delivered to Pan Am, which immediately sent it out on an extensive promotional tour across the United States and the rest of the world to showcase the 747 to the public.
[2] [3] The aircraft carried manufacturer serial number 20235 [3] and was designated internally as RA001, [clarification needed] marking the beginning of the era of the "jumbo jet". [4] N7470 has a paint design featuring a simple white and red livery adorned with the logos of the more than two dozen airline customers who had ordered the ...