Effects of added work load on compensatory tracking for maximum terrain following.

Abstract

The relative merits of presenting each of two command signals (δe, the elevator deflection angle, and γ, the aircraft flight-vector angle) on a compensatory display for manual control of a simulated aircraft on a terrain-following mission were examined. It was found that imposing additional work loads on the pilot led to a greater decrement in tracking performance with the γ command than with the δe command. Further, the work load task itself was performed with greater proficiency while tracking with the δe command. The apparent merits of the δe command warrant further investigation.