According to the characteristics of rotor wing aircraft, the helicopterSflying platform is developed that can apply to rotor wing aircraft research. Structural design of rotor wing and power system is analyzed and the calculating and comparing of aerodynamic performance of elliptic airfoils with different thickness-chord ratio using numerical calculation method is given. And in the end of this paper, the calculation and experimental investigation of rotor wing in hover is developed, the results in this paper provides some reference value for the research of rotor wing aircraft.