DOI: 10.2514/5.9781600866449.0001.0039
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Abstract: I. IntroductionI N response to the extraordinary transformations in the world's political and economic structure and the increasing economic stresses and social concerns, the aerospace programs of the United States, Europe, Jap~, and Russia are going through sweeping changes. In aeronautics, future goals include lower life-cycle costs; higher cruising speeds, altitudes, and engine thrust-to-weight ratios; reduced environmental impact; improved safety and greater convenience of air travel; and greater passenge…

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