Vought Corporation - Systems Division is under contract to NAVAIR (4131) to develop a pilot performance measurement system that will aid the Landing Signal Officer (ISO) during training in the A-7 Night Carrier Landing Trainer (NCLT). This paper discusses (a) how parametric performance data (lineup and glide-slope error, sink rate, airspeed, etc.) are collected on categories I and II A-7 replacement pilots during NCLT and night carrier qualifications, (b) how the data will be statistically analyzed to determine those factors that indicate student progress, (c) how these factors will be combined into a single predictive index, and (d) how the program products can be applied as training aids. Finally, the results of preliminary analyses are presented.