Naval Training Device Center, Port Washington, N.Y.: Technical report NAVTRADEVCEN (series). Simulation of helicopter and V/STOL aircraft: v. 3, pt. 2, Computational methods of digital, study, equations, of motion of vertical/short take-off and landing operational flight/ weapon system trainers [with bibliography; by] Burton G. Tregub, Merlin T. Coffee, C. E. Russell.