A simulator facility employing a two-axis compensatory trackingtask with a random-appearing signal was used to evaluate the performanceof fifty-five pilot and non-pilot test subjects using four separatecontrol sticks — two movable and two rigid. Pilot acceptance of therigid cockpit controllers was determined by comparing individual pilotratings of the sticks. In general, in both performance and opinion, therigid systems were found to be superior to their movable counterparts.Steps were taken to avoid errors due to pilot bias, learning, adaptation,or fatigue. The results obtained are subject to several test limitations,including the low stick-force levels used, the neglect of aircraftvibration effects, and the realism of the simulation.
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