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A multi-rotor unmanned aircraft, or drone, participates in NASA's Unmanned Aircraft Systems Traffic Management research program. The research aims to solve the challenge of drones flying beyond the visual line of sight of their human operators without endangering other aircraft. During the test, two of the drones flew beyond their commanders' lines of sight. As many as two drones were operated in the same test airspace, separated by altitude and within sight of their operators. The pilots used the NASA-developed UTM research platform to gain information about all the drones' locations and proximity to other air traffic and hazards. UTM also informed other airspace users of potential hazards and conflicting operations that could affect their plans. Before multiple drones can fly in the same area, beyond the pilots' view, procedures need to be in place to safely manage the traffic. Operators must be aware of other aircraft around them, no-fly zones (also known as geo-fenced areas), and man-made and natural hazards, such as severe weather or unanticipated events in the area.
