选择了九种双组元和三组元发动机系统方案，计算了各种方案发动机的性能和质量。当单级入轨运载器主推进系统由这些发动机组成时，计算和分析了推进系统的组成方式对运载器干质量的影响。计算结果表明，当推进系统全部由三组元发动机组成时，运载器干质量最小。 Nine types of two-component and three-component engine system solutions were selected, and the performance and quality of various schemes of the engine were calculated. When the single-stage orbiter main propulsion system consists of these engines, the influence of propulsion system composition on the vehicle dry mass is calculated and analyzed. The calculation results show that when the propulsion system consists of three-component engines, the dry weight of the carrier is the smallest.