To break through the restrictions imposed by traditional paradrogue on the speed and altitude of the tanker aircraft， the variable drag characteristic paradrogue is proposed. The effects of the variable drag characteristic on the paradrogue draught positon are analyzed， aerodynamic characteristics of an improved paradrogue allowing canopy manipulation are simulated by computational fluid dynamics （CFD）， and the trend of drag related to speeds and altitudes is obtained. The hose configuration is calculated by building discrete models. Results demonstrate that by changing the angle of the struct-arm， the improved type can provide variable drag so that the paradrogue movement can be limited， and the improved type is feasible and applicable at broader speed and altitude range.