To demonstrate the feasibility and practicability of designing and building low-cost flight simulators, a prototype system was developed to model the performance of a new US Army remotely piloted missile system. The flight simulator displays a dynamic, three-dimensional, out-the-window view of the terrain in real time while responding to operator input from the command and control system. A description is given of the hardware, software, and database implementations. The system capabilities and limitations are examined. The total development cost is an order of magnitude less than that of the sophisticated systems currently in use. >