CPC G10K 11/17823 (2018.01) [B64C 27/20 (2013.01); B64C 39/024 (2013.01); G05D 1/0808 (2013.01); H04R 1/323 (2013.01); H04R 1/326 (2013.01); B64C 2220/00 (2013.01); B64U 30/20 (2023.01); G10K 2210/1281 (2013.01); G10K 2210/3046 (2013.01); H04R 2410/05 (2013.01); H04R 2499/13 (2013.01)] | 14 Claims |
1. An unmanned aircraft comprising:
rotor blades;
a duct that shrouds the rotor blades and through which airflow generated by rotation of the rotor blades passes; and
a processor that controls rotation of the rotor blades,
wherein a ratio of a height to a width of an inner space of the duct in which the rotor blades are shrouded is at least 0.5.
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