摘要: The entire TAC study is briefly summarized for background information. The, most important research items for the areas of noise, congestion, and emissions are identified. Other key research areas are also discussed. The 50 recomm... 展开 The entire TAC study is briefly summarized for background information. The, most important research items for the areas of noise, congestion, and emissions are identified. Other key research areas are also discussed. The 50 recommended research items are categorized by flight phase, technology, and compatibility benefits. The relationship of the TAC recommendations to the previous ATT recommendations is discussed. The bulk of the document contains the 50 recommended research items. For each item, the potential payoff, state of readiness, recommended action, and estimated cost and schedule are given. 收起