Design for the seal system and charge of a CTA gun

The cased telescoped ammunition (CTA) gun makes use of new principle of propulsion. Both its ammunition and the gun structures are different from the conventional guns. The seal system for the rotating chamber and the charge design are the two key techniques in a CTA gun. For a good interior ballistic performance, the authors studied the propulsion principle of a CTA gun. Based on experiments, the charge of a CTA gun was designed, and some schemes were given, such as the material and the length of the flash tube, the material and the structure of the control tube and the lock pieces on the forehead of the pill. To ensure the reliability of the seal between the chamber and the gun barrel, a novel self-impacted combined seal system was designed, which provides a good solution for the problem under radial transient high pressure. Furthermore, the authors describe some experimental phenomena and especially some successful techniques and experiences testified by experiments.