Abstract : The primary mission involves research and development support related to the aerodynamic and aeroballistic aspects of advanced chemical delivery vehicles. This includes the evaluation and optimization of advanced aerodynamic chemical munition configurations as well as the analysis of the effects of chemical type payloads on their flight performance. Secondly, because of the technical expertise of the ARCAS personnel and their special aerodynamic laboratory facilities, the mission also includes providing assistance to ARRADCOM and DOD in demonstrating the feasibility of advanced aerodynamic weapons concepts. To support this mission, the ARCAS possesses an aerodynamic laboratory with a unique array of experimental aerodynamic facilities including four wind tunnels and a special projectile flight simulator. The wind tunnels cover the subsonic, transonic, and supersonic speed regimes and also include a special vertical wind tunnel facility. The flight simulator allows full sized artillery payloads to undergo the simultaneous spinning and coning motion of the projectile in flight.