Abstract Based on a flight experiment, the difference between the total aircraft noise level and the ambient noise is proposed to be used as an audibility criterion for unmanned aerial vehicles equipped with piston engines. It is found that the unmanned aerial vehicle becomes audible for an observer at a criterion value of 3 dBA.
Selection of an Audibility Criterion for Propeller Driven Unmanned Aerial Vehicle
Russian Aeronautics ; 61 , 2 ; 149-155
2018-04-01
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Selection of an Audibility Criterion for Propeller Driven Unmanned Aerial Vehicle
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