Investigation of control, display, and crew-loading requirements for helicopter instrument approachA ground simulation experiment was conducted on a flight simulator for advanced aircraft to investigate the influence and interaction of flight-control system, flight-director display, and crew-loading situation on helicopter flying qualities during terminal-area operations in instrument conditions. Six levels of control complexity were implemented on a representative helicopter model. The six levels of augmentation were examined with display variations consisting of raw elevation and azimuth data only and of raw data plus one-, two-, and three-cue flight directors. Crew-loading situations simulated for the control-display combinations were dual-pilot operation and single-pilot operation. Four pilots performed a total of 150 evaluations of combinations of these parameters for a representative microwave landing system approach task. Pilot rating results indicated the existence of a control display trade-off for ratings of satisfactory, whereas ratings of adequate-but-unsatisfactory depended primarily on the control system; the control system required for ratings of adequate-but-unsatisfactory was clearly more complex for the single-pilot situation than that for the dual-pilot situation.
Document ID
19810059706
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Lebacqz, J. V. (NASA Ames Research Center Moffett Field, CA, United States)
Gerdes, R. M. (NASA Ames Research Center Moffett Field, CA, United States)
Forrest, R. D. (FAA Moffett Field, CA, United States)
Merrill, R. K. (U.S. Army, Aeromechanics Laboratory, Moffett Field CA, United States)