CycloTech says it has conducted the “most extensive CycloRotor outdoor noise test campaign with a key result being that the CycloRotor generates a sound pressure level of 59 dBA at a distance of 100 meters, which is equivalent to the level of a typical conversation between two people.”
According to a press release “CycloRotors are becoming a new propulsion option for urban air mobility vehicles, offering the unique 360 degree thrust vectoring capability coupled with compact design.
“The noise test campaign was conducted at Wels General Aviation Airport, Austria. The CycloRotor CR-42 was mounted vertically on a mobile frame and placed far away from any reflective surface. Measurements were performed in moments of no air traffic and wind speeds below 2.5m/s, with eight microphones, arranged in five distinct configurations, to characterise the noise generation and propagation of the CycloRotor.
“The data gathered is used to investigate the influence of different parameters on the acoustic characteristics of CyloRotors and guide the design of CycloRotor-driven AirCar concepts in order to leverage the noise reduction potential of electrically powered air vehicles and thus minimise noise exposure in populated areas.”
For more information and download Executive Summary