Increased temperature capability will be based on improved composite materials such as metal matrix, intermetallics, ceramics, and carbon/carbon as well as advanced heat transfer techniques. Key fundamental enabling technologies include increased temperature capability and advanced design methods. Propulsion technologies will include high-speed turboprops in the near term, very high bypass ratio turbofans, high efficiency small engines and advanced cycles utilizing high temperature materials for high-speed propulsion.

These aircraft will include advanced aerodynamic, structural, and avionic technologies resulting in major new system capabilities and economic improvements.

The next twenty-five years will see major advances in civil propulsion technology that will result in completely new aircraft systems for domestic, international, commuter and high-speed transports. This article examines the socioeconomic, political, and cultural factors that contributed to the spearfishing crisis twenty-five yearsâ€¦Ĭivil propulsion technology for the next twenty-five years Twenty-five years ago a 'perfect storm' of economic, environmental, and social conditions swirled in northern Wisconsin and battered attempts by the Ojibwe to exercise their treaty-based fishing rights. Data, in the form of questionnaire responses, wereâ€¦Īfter the Storm: Ojibwe Treaty Rights Twenty-Five Years after the 'Voigt' Decision The purpose of the multiple case- study research was to investigate the relationship between students' early interests and theirâ€¦Īfter Twenty-Five Years: A Twenty-Five Year Follow-up Study of Middlesex County Vocational and Technical High School Graduates of the Class of June 1953.Ī twenty-five-year follow-up study was conducted to determine the occupational, educational, marital and armed forces experiences of the graduating class of 1953 from the Middlesex County Vocational and Technical high schools located in New Brunswick, Perth, Amboy, and Woodbridge, New Jersey. This retrospective study examines the lives of students twenty-five years after they participated in an elementary gifted program based on The Revolving Door Identification Model (Renzulli, Reis, and Smith, 1981). Young Creative Producers: Twenty-Five Years LaterĮRIC Educational Resources Information Center

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