Airbus A300
The Airbus A300 is Airbus' first production aircraft and the world's first twin-engine, wide-body airliner. It was developed by Airbus Industrie GIE, now merged into Airbus, and manufactured from 1971 to 2007.
In September 1967, aircraft manufacturers in France, West Germany and the United Kingdom signed an initial memorandum of understanding to collaborate to develop an innovative large airliner. The French and West Germans reached a firm agreement on 29 May 1969, after the British withdrew from the project on 10 April 1969. A new collaborative aerospace company, Airbus Industrie GIE, was formally created on 18 December 1970 to develop and produce it. The A300 prototype first flew on 28 October 1972.
The first twin-engine widebody airliner, the A300 typically seats 247 passengers in two classes over a range of.
Initial variants are powered by General Electric CF6-50 or Pratt & Whitney JT9D turbofans and have a three-crew flight deck. The improved A300-600 has a two-crew cockpit and updated CF6-80C2 or PW4000 engines; it made its first flight on 8 July 1983 and entered service later that year. The A300 is the basis of the smaller A310 and was adapted in a freighter version. Its cross section was retained for the larger four-engined A340 and the larger twin-engined A330. It is also the basis for the oversize Beluga transport. Unlike most Airbus aircraft, it has a yoke and does not use a fly-by-wire system.
Launch customer Air France introduced the type on 23 May 1974.
After limited demand initially, sales took off as the type was proven in early service, beginning three decades of steady orders. It has a similar capacity to the Boeing 767-300, introduced in 1986, but lacked the 767-300ER range. During the 1990s, the A300 became popular with cargo aircraft operators, as both passenger airliner conversions and as original builds. Production ceased in July 2007 after 561 deliveries.
, there are 197 A300 family aircraft still in commercial service.
Development
Origins
During the 1960s, European aircraft manufacturers such as Hawker Siddeley and the British Aircraft Corporation, based in the UK, and Sud Aviation of France, had ambitions to build a new 200-seat airliner for the growing civil aviation market. While studies were performed and considered, such as a stretched twin-engine variant of the Hawker Siddeley Trident and an expanded development of the British Aircraft Corporation One-Eleven, designated the BAC Two-Eleven, it was recognized that if each of the European manufacturers were to launch similar aircraft into the market at the same time, neither would achieve sales volume needed to make them viable. In 1965, a British government study, known as the Plowden Report, had found British aircraft production costs to be between 10% and 20% higher than American counterparts due to shorter production runs, which was in part due to the fractured European market. To overcome this factor, the report recommended the pursuit of multinational collaborative projects between the region's leading aircraft manufacturers.European manufacturers were keen to explore prospective programmes; the proposed 260-seat wide-body HBN 100 between Hawker Siddeley, Nord Aviation, and Breguet Aviation being one such example. National governments were also keen to support such efforts amid a belief that American manufacturers could dominate the European Economic Community; in particular, Germany had ambitions for a multinational airliner project to invigorate its aircraft industry, which had declined considerably following the Second World War. During the mid-1960s, both Air France and American Airlines had expressed interest in a short-haul twin-engine wide-body aircraft, indicating a market demand for such an aircraft to be produced. In July 1967, during a high-profile meeting between French, German, and British ministers, an agreement was made for greater cooperation between European nations in the field of aviation technology, and "for the joint development and production of an airbus". The word airbus at this point was a generic aviation term for a larger commercial aircraft, and was considered acceptable in multiple languages, including French.
File:28.10.72 1er Vol d'Airbus - 53Fi1992.jpg|thumb|Technical director Roger Béteille discussing with general manager Henri Ziegler beside the CF6 turbofan, which powered the A300 first flight
Shortly after the July 1967 meeting, French engineer Roger Béteille was appointed as the technical director of what would become the A300 programme, while Henri Ziegler, chief operating office of Sud Aviation, was appointed as the general manager of the organisation and German politician Franz Josef Strauss became the chairman of the supervisory board. Béteille drew up an initial work share plan for the project, under which French firms would produce the aircraft's cockpit, the control systems, and lower-centre portion of the fuselage, Hawker Siddeley would manufacture the wings, while German companies would produce the forward, rear and upper part of the center fuselage sections. Additional work included moving elements of the wings being produced in the Netherlands, and Spain producing the horizontal tail plane.
An early design goal for the A300 that Béteille had stressed the importance of was the incorporation of a high level of technology, which would serve as a decisive advantage over prospective competitors. For this reason, the A300 would feature the first use of composite materials of any passenger aircraft, the leading and trailing edges of the tail fin being composed of glass fibre reinforced plastic. Béteille opted for English as the working language for the developing aircraft, as well against using Metric instrumentation and measurements, as most airlines already had US-built aircraft. These decisions were partially influenced by feedback from various airlines, such as Air France and Lufthansa, as an emphasis had been placed on determining the specifics of what kind of aircraft that potential operators were seeking. According to Airbus, this cultural approach to market research had been crucial to the company's long-term success.
Workshare and redefinition
On 26 September 1967, the French, West German and British governments signed a Memorandum of Understanding to start the development of the 300-seat Airbus A300. At this point, the A300 was only the second major joint aircraft programme in Europe, the first being the Anglo-French Concorde. Under the terms of the memorandum, the French and British were to each receive a 37.5 per cent work share on the project, while the West Germans would receive a 25 per cent share. Sud Aviation was recognized as the lead contractor for the A300, with Hawker Siddeley being selected as the British partner company. At the time, the news of the announcement had been clouded by the British Government's support for the Airbus, which coincided with its refusal to back BAC's proposed competitor, the BAC 2–11, despite a preference for the latter expressed by British European Airways. Another parameter was the requirement for a new engine to be developed by Rolls-Royce to power the proposed airliner; a derivative of the in-development Rolls-Royce RB211, the triple-spool RB207, capable of producing of.The programme cost was US$4.6 billion.
File:Airbus A300 cross section.jpg|thumb|The diameter circular fuselage section for 8-abreast seating and 2 LD3 containers below. This is part of the first A300 prototype, F-OCAZ, on display at Deutsches Museum in Munich.
In December 1968, the French and British partner companies proposed a revised configuration, the 250-seat Airbus A250. It had been feared that the original 300-seat proposal was too large for the market, thus it had been scaled down to produce the A250. The dimensional changes involved in the shrink reduced the length of the fuselage by and the diameter by, reducing the overall weight by. For increased flexibility, the cabin floor was raised so that standard LD3 freight containers could be accommodated side-by-side, allowing more cargo to be carried. Refinements made by Hawker Siddeley to the wing's design provided for greater lift and overall performance; this gave the aircraft the ability to climb faster and attain a level cruising altitude sooner than any other passenger aircraft. It was later renamed the A300B.
Perhaps the most significant change of the A300B was that it would not require new engines to be developed, being of a suitable size to be powered by Rolls-Royce's RB211, or alternatively the American Pratt & Whitney JT9D and General Electric CF6 powerplants; this switch was recognized as considerably reducing the project's development costs. To attract potential customers in the US market, it was decided that General Electric CF6-50 engines would power the A300 in place of the British RB207; these engines would be produced in co-operation with French firm Snecma. By this time, Rolls-Royce had been concentrating their efforts upon developing their RB211 turbofan engine instead and progress on the RB207's development had been slow for some time, the firm having suffered due to funding limitations, both of which had been factors in the engine switch decision.
On 10 April 1969, a few months after the decision to drop the RB207 had been announced, the British government announced that they would withdraw from the Airbus venture. In response, West Germany proposed to France that they would be willing to contribute up to 50% of the project's costs if France was prepared to do the same. Additionally, the managing director of Hawker Siddeley, Sir Arnold Alexander Hall, decided that his company would remain in the project as a favoured sub-contractor, developing and manufacturing the wings for the A300, which would prove to be an important contributor to the performance of subsequent versions. Hawker Siddeley spent £35 million of its own funds, along with a further £35 million loan from the West German government, on the machine tooling to design and produce the wings.