The mathematical concepts of convolution and superposition are used in a modeling scheme that creates a new capability for studying some modern flying qualities problems. The process computes solutions of very highorder six-degree-of-freedom linear vehicle dynamics on a minicomputer with input/output process times under 10 msec, substituting easily constructed, vehicle step-responses in the time domain for the usual differential equations. Thus, it offers a valuable way to study the flying qualities of nonclassical control responses produced by modern, highly augmented vehicles. Furthermore, standard non-real-time stability and control analysis software can be used to quickly produce real-time minicomputer models, making relatively inexpensive simulator flying qualities studies possible very early in the design/development cycle. A current application to the study of adverse lateral control responses at hover on a large-amplitude research simulator is reviewed.