在现代商用飞机的研制过程中对发动机供应商单选多选问题进行科学的、定量化的评价决策对于新机型的研制与其市场竞争力具有重要的影响。在主制造商-供应商模式下,对于飞机的主制造商而言更倾向于单选发动机供应商,因为多选发动机供应商将引起飞机系统与发动机技术协调工作的重复进行,增加了研制成本和研制周期。对于飞机的主要使用者——航空公司和飞机租赁公司而言又有各自利益的考虑。在各发动机供应商的技术状态差 In the process of the development of modern commercial aircraft, the scientific and quantitative evaluation and decision-making of the multiple choice of engine suppliers for single-selection has an important impact on the development of new models and their market competitiveness. Under the main manufacturer-supplier model, the primary manufacturer of aircraft is more likely to be a single-factor engine supplier because multiple-choice engine suppliers will result in duplication of coordination between aircraft systems and engine technology, increasing development costs And development cycle. For the main users of aircraft - airlines and aircraft leasing companies have their own interests. The technical status of each engine supplier is poor