This course presents the challenges to uncrewed and autonomous systems (UAS) encountered in their operational capacities. The student is exposed to the aspects of extreme environments where the vehicles and communications must operate in all conditions. The presence of adverse factors and disturbances could disrupt the function of the communications and controllers and lead to significant degradation of performance, causing instability and possible damages. Students learn to match platform capabilities, communications abilities, and payloads with the mission requirements to meet the demands of a variety of environments. The students develop an understanding of extreme or uncertain environments, the limitations inflicted on UAS systems, and possible methods to overcome them. Prerequisite: UAS-140. (3-0-3)