Preliminary PWI Specifications and Threat Logic

Abstract : An estimation was made of the potential benefit to be derived by the various users of the air-space through the implementation of Pilot Warning Instrument (PWI) systems of various degrees of sophistication. It is anticipated that the effectiveness of any PWI will depend strongly on the following: the rate of alarms it generates; the percentage of these alarms for which pilots detect corresponding targets; and whether or not the pilots consider these targets to be dangerous. It is proposed to measure the potential effectiveness of various systems by exercising them through simulation with pilots who are busy with workloads appropriate to their mission.