The AQM-128 was a short-lived program undertaken by the United States Navy for the development of a subscale target drone, launched from aircraft and capable of supersonic speed. The AQM-128 was intended to use pre-programmed guidance.
The program for development of the new target drone was begun in 1983; in January 1984, the designation YAQM-128A was approved for the program. However, the program was cancelled in April that year before any designs were selected.
References
AQM-128 Wikipedia(Text) CC BY-SA