New Materials for Next-Generation Commercial Transports (1996) / Chapter Skim
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1 Requirements and Drivers
1 Requirements and Drivers
Pages 5-10
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Introduction
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In response to the Act, the FAA has initiated a comprehensive research program concerned with all aspects of civil aircraft safety The overall objective of the FAA program is to anticipate the technological advances that will likely affect future aircraft and to evaluate their implications for aircraft safety. One very important concern regarding aircraft safety is the degradation of structural materials as aircraft operate beyond their original design life, bringing to the forefront issues of materials stability, corrosion resistance, fatigue behavior, and maintenance procedures.
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, the recent trends described above will have a profound effect on the design and production of nextaeneration commercial aircraft NEXT-GENERelTION AIRCRAFT The major aircraft manufacturers have recently introduced new aircraft, including the Airbus A340, the McDonnell Douglas MD-11, and most recently, the Boeing 777. New aircraft models range from derivative models that are modifications of existing aircraft designs (e.g., fuselage extensions for increased capacity)
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From page 9... ...
The economic viability of a large sector of the advanced materials industry is threatened because of significant reductions in the military markets, the economic decline in commercial aerospace, unrealistic market forecasts, and increased international competition (Seagle, 1994~. In the current business environment, it is difficult for materials suppliers to commit to expensive design, development, and qualification efforts needed to evaluate and fabricate a new material for commercial aircraft applications.
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For derivative or new aircraft, the incentive to introduce new materials include reduced airline maintenance and operating costs, reduced production and rework costs, reduced manufacturing cycle time, and compliance with environmental regulations. Although qualification costs can inhibit the introduction of new materials and structural concepts on derivative models, the consideration of incentives described above are evolving production toward short development cycles, cost reductions, and customer-preferred options.
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