 This paper presents a remote sensing system for radiation detection and aerial imaging using an autonomous helicopter. The system is designed to gather crucial situational awareness in post disaster environments allowing response efforts to be expedited. The radiation payload consists of a scintillating type detector with associated software and novel search algorithms to rapidly and effectively map and locate sources of high radiation intensity. The system has been flight tested over several years and a new production flight platform has been built to enhance reliability and maintainability. The new platform is based on the AeroScout B1-100 helicopter platform which has a one-hour flight endurance and uses a COFDM radio system that gives the helicopter an effective range of seven kilometers. This article was authored by Kevin Cochersberger, Brian Kraewick, and Jerry Teller.