Two-Dimensional Versus Three-Dimensional Tracking Under Two Modes of Error Feedback

Abstract

A set of constraints arose in connection with the design of a search vessel. Ship size was expected to limit ship control automation yet require one-man operation. Furthermore, the scale required to display track error was extremely small and likely to cause error feedback problems. A study was undertaken to obtain baseline data, given these constraints. Results showed severe ship control decrement where the operator was coupled to two nonredundant tasks, depth- and course-keeping, even though one task was display aided. Results also showed that mode of course error feedback did not affect course-keeping, but did affect the coordinate task of depth-keeping.