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Previous studies have shown that use of flight-path displays may lead to increased situational awareness during final approach and landing. However, there are a number of research issues which remain to be investigated concerning the optimum design of a perspective flight-path display. The purpose of this paper is to report the results of a study which investigated the relationship between the geometric field of view, number of tunnels in the display, and flight-path complexity on the subject's ability to fly a computer-simulated aircraft during final approach. Implications of the results for the design of perspective flight-path displays are discussed.

This study investigated perceptual biases in spatial judgments as a function of the computer graphics eyepoint elevation, monoscopic or stereoscopic display, and target cube location. The display for this experiments consisted of two computer-generated cubes located above a grid plane with drop lines to the display surface. The experiment task consisted of judging azimuth and elevation angles between the target and reference cubes. The results indicated that azimuth errors varied with eyepoint elevation and were maximized at the - 15 degree eyepoint, elevation errors were worse using the 75 degree eyepoint, and binocular disparity did not aid judgments of azimuth and elevation.