CUI Kai , XU Yingzhou , Li Guangli  , XIAO Yao, WANG Haoxiang

DOI Number XXX-YYY-ZZZ

Conference Number HiSST 2018_2830937

This study aims at climbing characteristics investigation of the first-stage reusable launch vehicle in small Two-Stage-To-Orbit (TSTO) systems adopting ground boosting, horizontal take-off strategy. On the basis of the two-dimensional, three degree of freedom ballistic equations, the impact of the lift-todrag ratio of the vehicle on some key performance parameters, which include the velocity gain, the height gain, the trajectory inclination angle, the dynamic pressure, and the maximal overload, etc are systematically analyzed under different thrust-weight ratios. The results clearly show that a high lift-todrag ratio is not only propitious to elevate the height of separation, but also conducive to reduce the dynamic pressure as well as the maximal overload, especially in small thrust-weight ratio conditions. The adjustment range of the trajectory inclination angle is significantly extended due to a high lift-todrag value simultaneously. Finally, some critical requirements of aerodynamic configuration design are proposed.

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In Categories: High-Speed Aerodynamics and Aerothermodynamics, High-Speed Missions and Vehicles, HiSST 2018
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