升力式火箭动力航班化航天运输系统的关键技术挑战

航班化航天运输系统是重复使用航天运输系统的高级形式，具有高可靠、低成本、智能化、规模化、产业化等特点。基于火箭动力发展航班化航天运输系统是切实可行的技术途径之一，升力式火箭动力航班化航天运输系统具备实现类似飞机航班形式的快速周转发射能力，同时对航天运输技术也提出了新的挑战。结合航班化航天运输系统的发展态势和技术方案，重点分析了升力式火箭动力航班化航天运输系统面临的技术挑战，提出了后续研究重点与发展建议。

Key Challenges of Lifting-Body Rocket-Powered Airline-Flight-Mode Space Transportation System

The airline-flight-mode space transportation system is an advanced form of reusable space transportation system, with features of high-reliability, low-cost, intelligent and industrialized. One of the feasible approach of airline-flight-mode space transportation system is based on rocket engines with lifting-body configuration, which can achieve fast turnover launch capability like commercial flights. It is challenging to develop such an advance space transportation system and therefore innovation in technologies are needed. In this article, combined with recent developments and technical solutions of the airline-flight-mode space transportation system, technical challenges faced in the development of reusable launch vehicles are analyzed, and research priorities and suggestions in the future are given.