This report contains the papers prepared for the Symposium on Missile Aerodynamics' organised by the RTO Applied Vehicle Technology Panel (AVT), which was held 11-14 May 1998 in Sorrento, Italy. In addition, a Technical Evaluation Report aimed at assessing the success of the Symposium in meeting its objectives, and an edited transcript of the General Discussion held at the end of the Symposium are also included. This Symposium was dedicated to the memory of Dr. Jack Nielsen and a keynote paper addressed his contributions to Missible Aerodynamics. An additional keynote paper was presented on Future Missile System Trends and their Impact on Aerodynamics. In addition to the keynote presentations, 38 Papers were presented during sessions on the following subjects: (1) Aerodynamic Design; (2) Unconventional Configurations; (3) Jet Effects; (4) Flows Physics and Turbulence Modeling; and (5) Prediction Methodology.