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2001 Assessment of the Office of Naval Research’s Aircraft Technology Program
and design practices, including the introduction of meaningful figures of merit for trading off such parameters as machine versus human functionality.
Because of the need for mission performance to be highly reliable—perhaps as reliable as safe manned flight—the fault tolerance and fail-safe characteristics of all flight-safety-critical control technologies on UAVs and UCAVs should be extended, as required, to ensure that mission-critical functions are performed reliably.