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Predicting the Impact Point of a Falling Body

QinetiQ’s Real Time All Vehicle Simulator (RTAVS) is a multi-platform simulation environment used for a variety of applications, including the simulation of a military fast jet. In this application, a Head Up Display (HUD) provides the pilot with navigation and weapons system information. The trajectory of any air to ground munition must be calculated many times a second in order to update the HUD information. Within RTAVS this calculation is performed along with several thousand others on a personal computer running the aircraft model and visuals in real-time. Therefore an efficient algorithm for the calculation of the predicted impact point is required, which must also be simple to implement, because the RTAVS software is maintained by several people all with differing mathematical knowledge.