Research on fall-evaluation method of towed decoy missile

The wind tunnel towed test and force test were performed with the full scale model of the towed decoy missile to research the towed flight fall under real conditions. Firstly, the wind tunnel towed test was carried out on decoy missile models of different configurations, and it turns out that the head shape and the center of mass have a great influence on the final towed attitude. In addition, the static stability does not always increase with a forward movement of the center of mass by the combined effect of the strain of tether and the aerodynamic force. Then, by analyzing the stress of the decoy missile in stabilization, a new idea is recommended for the fall evaluation based on the wind tunnel force test, which can derive the fall formulas using the aerodynamic data gathered from the force test. Its feasibility is comfirmed by comparing with the towed test. Lastly, by deeply study the advantages and disadvantages of the two tests above, a detailed application method on the optimal design and fall evaluation of the towed decoy missile is proposed for engineering practice.