A comparative analysis of the aerogasdynamics of waveriders designed from two different flow types, namely the axisymmetric conical flows and the flows behind two-dimensional planar shocks, was carried out. Integral aerodynamic characteristics of a configuration with different forms of transverse contours of the lower surface were considered, and the “conical” and equivalent “planar” waveriders optimal in terms of the life-todrag ratio were compared. The gas-dynamic structure features in off-design flow regimes were investigated on the basis of numerical solution of the Euler equations for the Mach numbers, which were both higher and lower than the design values. Obtained data refer to the freestream Mach number range M∞ = 4–10.