Tag: Noise

EASA Publishes Noise Standards for EVOTLs

Aviation International News reports that EASA “has published what it claims are the world’s first proposed noise certification standards for eVTOLs.” The proposals, known as the Environmental Protection Technical Specifications (EPTS), “are applicable to eVTOL vehicles powered by multiple vertical, non-tilting, evenly distributed rotors.” EASA says that the proposed specifications “are intended to fill a regulatory gap and use the internationally harmonized noise certification standards for heavy helicopters” as a starting point while it “collects more noise data from specific eVTOL designs through certification projects.” In addition, a hover noise level “has been developed to aid in the assessment of flight operations in the vicinity of vertiports.”
Full Story (Aviation International News)

NASA Test Flights of Joby eVTOL Prove Low Noise Levels

Aviation International News reports that results “from recent NASA-backed flight tests with Joby’s eVTOL prototype demonstrate that noise from the four-passenger air taxi vehicle would be barely audible from city streets below.” While in flight, the Joby eVTOL “registered the equivalent of 45.2 dBA while cruising at an altitude of 1,640 feet at a speed of 115 mph.”
Full Story (Aviation International News)