INFLUENCE OF STATIC AEROELASTIC DEFORMATION OF AN AIRPLANE ON THE AERODYNAMIC CHARACTERISTICS AND FLIGHTLOADS

The static aeroelastic characteristics of a flexible V-tail airplane were studied by the analyses of the variations of aerodynamic derivatives and flight loads versus flight dynamic pressure. The results show that the variation trends of aerodynamic derivatives and flight loads of the flexible airplane are different from those of the rigid airplane. Therefore, it is necessary to consider the static aeroelastic effects during the flexible airplane design.