A Pilot/Vehicle Model Analysis of the Effects of Motion Cues on Harrier Control Tasks.
Final rept. Mar 81-Mar 82,
BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA
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In this study, the results of an analytical investigation of pilot control of a simulated AV-8B Harrier aircraft are presented. The analysis was performed using a well-established pilot-vehicle model, namely, the Optimal Control Model. The effects on closed-loop performance of aircraft configuration SAS-ON or SAS-OFF and flight condition hover or cruise and of simulator motion cueing condition fixed-base, moving platform or g-seat were all analyzed. In addition, the interaction between these conditions and the level of pilot attention andor skill or training was investigated by means of a sensitivity analysis in which we systematically varied a parameter of the OCM the observation noisesignal ratio which can be related to these pilot factors. The results indicate that motion cues could be very significant in the Harrier hover control task for the augmented SAS-OFF vehicle. For hover with the SAS-ON and for cruise flight, motion cues are predicted to be, at best, of marginal utility for improving performance. The model results suggest that motion cues may be provided for these tasks by a g-seat with little loss in performance as compared to using platform motion. However, the assumptions underlying the g-seat analysis have not been verified experimentally. Author