 According to Bill Lear's son, William P. Lear, the designs of the P-16 and the Learjet possessed substantial differences, particularly in terms of their wing and tail configurations, dismissing claims of there being a close similarities between the two as "stories" and "fantasy".William had become involved in the P-16 program at a later stage, which included flying the type multiple times, after FFA had reached out to him for his assessment of the aircraft during 1960.The FFA P-16 was a single-seat, single-engine aircraft, designed to be especially well-suited to the close air support (CAS) role, but to also perform as a capable interceptor aircraft as well.