Missile DATCOM is a widely used semi-empirical datasheet component build-up method for the preliminary design and analysis of missile aerodynamics and performance. It has been in continual development for over twenty years with the latest version released in March 2011. It has traditionally been supplied free of charge by the USAF to American defense contractors. The code is considered ITAR and should not be distributed outside the country.
References
Missile Datcom Wikipedia(Text) CC BY-SA