In the end it’s a trade off between blade angle of attack (read energy produced) and noise.
https://pinnacleacoustics.com/wp-content/uploads/2015/07/Pinnacle_Acoustics_REV425X183-300x129.png00Bill Thornburghhttps://pinnacleacoustics.com/wp-content/uploads/2015/07/Pinnacle_Acoustics_REV425X183-300x129.pngBill Thornburgh2021-04-01 09:44:352021-04-01 09:44:36Wind Power vs. Noise