The effect of different simulator motion conditions on pilot performance was investigated, and the cuing function of simulator motion was explored. Subjects were required to perform a simulated air-to-air gunnery task under four conditions of motion. While treatment effects did not meet the predetermined level of statistical significance, simulator motion produced better accuracy performance than no motion. There was significant learning or practice effect as a result of continued exposure to the task. Other performance parameters showed no systematic differences as a function of experimental condition. In general, the results of this study appear to confirm previous indications that simulator motion need not be a faithful reproduction of real-life motion in order to provide essential motion cues. (Author/MT)