Definition of "unpiloted" [unpiloted]

• Lacking a pilot (adjective)

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• "Unmanned aircraft are already cleared to fly in the U.S. on a case-by-case basis, but for commercial UAV flight to take off the FAA will have to establish a set of across-the-board rules governing unpiloted flight."
• "The unpiloted test is part of an effort to design a system for safely propelling future spacecraft and crews away from hazards on the launch pad or during the climb to orbit."
• "The ISS Progress 36 unpiloted spacecraft approaches International Space Station for docking."