The aerodynamics of typical aircraft configurations under Ma=6.0 (Re=1×107) cruise condition was evaluated numerically using in-house software SPACER. The configurations include quasi-waverider (like X-51A), blended-wing-body (ISR), traditional lifting-body (X-33) and axisymmetric cone (Fasthawk). A flat lifting-body model was also studied in this paper. It is found that, at the current conditions, the quasi-waverider has good lift-to-drag ratio and relatively small drag force, which is the most potential hypersonic configuration among studied; the blended-wing-body and lifting-body require modifications to improve the performance, such as to flat the shape of the lifting-body; the axisymmetric cone is also a candidate for hypersonic cruise configuration due to the small drag.
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