Three types of visual scene cues were varied in order to determine their effect on pilot performance during simulated low altitude flight. The three types of visual cues consisted of three sizes of ground texture patterns, the presence or absence of vertical object cues, and the presence or absence of an aircraft shadow. The pilots who flew the simulated missions reported that all three visual cues were useful, however the vertical object cues and texture patterns were more useful than the aircraft shadow. Both the texture patterns and the vertical object cues produced statistically significant differences in quantitative measures of pilot performance.