S-bent D-shaped deflection thrust vectoring nozzle with continuous center line curvature and method

The invention discloses an S-bent D-shaped deflection thrust vectoring nozzle with continuous center line curvature and a method, and belongs to the technical field of aircrafts. Comprising a spray pipe equal straight section and an S-shaped bent section which are in smooth connection. The outlet end of the S-shaped bent section of the spray pipe is sequentially connected with a D-shaped deflection section and a D-shaped outlet section, the curvature of the center lines of the equal straight section, the S-shaped bent section and the D-shaped deflection section of the spray pipe is continuous, and the curved surfaces of the three sections are smooth and all achieve first-order continuity; the D-shaped deflection section comprises a deflection reserved section and a sliding section, and the sliding section is installed at the outlet end of the S-shaped bent section of the spray pipe through the deflection reserved section and can slide and stretch out and draw back along the center line of the sliding section