在民用飞机价值驱动设计的流程中,经济性需求是设计流程的出发点。从项目型号规划、相似机型水平、航线运营成本和航空发展规划四个方面对民用飞机的经济性需求做了分析。描述了民用飞机的经济性设计域,为民用飞机设计开展价值驱动的设计流程提供输入。 In the civil aircraft value-driven design process, the economic requirements are the starting point of the design process. From the project model planning, the level of similar models, route operating costs and aviation development planning four aspects of the economic needs of civil aircraft has been analyzed. Describes the economics of civil aircraft design domain, providing input for the value-driven design process of civil aircraft design.