Rapid-response surveillance system design and aerodynamic modeling

Abstract

The Rapid-Response Surveillance System (also known as WASP or Wide Area Surveillance Projectile) was developed within the context of the MIT/Draper Technology Development Partnership Project, which had as its aims the development of a first-of-a-kind system within a time-frame of two years and the development of an entrepreneurial spirit in the participating engineering students at MIT. After some studies, the final concept consisted of a integrated shell-flier system, known as the Super-Shell. After being launched from a standard Army or Navy gun, the shell would deploy a parachute during the ballistic trajectory, to de-spin and slow down. Aerodynamic surfaces (wings and tails) would deploy out of the shell, and the flier would conduct a 15-minute surveillance mission, recording images with a visual sensor, and sending them back to a ground station. In the aerodynamic analysis and modeling, this report shows the trade studies performed in selecting the best aerodynamic configuration in terms of performance and stability. The propulsion system selection is an integral part of the aerodynamic performance, and a propeller driven by an electric motor was selected. In the static and dynamic stability analysis, the aerodynamic configuration was modeled and analyzed using existing software, to provide sufficient control for a flexible mission.