Commercial aircraft have the potential to become dramatically cleaner and quieter in the next 25 years, but manufacturers will have to decide how far they want to push technology, and airlines must decide how much they are willing to pay for efficiency.rnThe potential for improvement is outlined in studies completed for NASA by four design teams led by Boeing, General Electric and Cessna, the Massachusetts Institute of Technology and Northrop Grumman. The teams defined configu- rations to meet NASA's aggressive en-vironmental goals for an "N+3-genera- tion" subsonic airliner entering servicernin 2030-35 (N is today's aircraft). They then developed road maps to mature the required technologies.
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机译：商用飞机有可能在未来25年内变得更清洁，更安静，但制造商将不得不决定他们要推动技术发展的程度，而航空公司必须决定他们愿意为效率付出多少。由波音，通用电气和塞斯纳，麻省理工学院和诺斯罗普·格鲁曼公司领导的四个设计团队完成的针对NASA的研究概述。团队定义了配置，以满足美国航空航天局的积极环境目标，即“ N + 3代”超音速客机在2030-35年服役（今天的飞机是N型）。然后，他们制定了路线图以成熟所需的技术。
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