https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/441415Edit ImageSaveSaveEditCropCustom TextNew renovated NASA Ames Research Center 12 foot Pressure Wind Tunnel, seen here is the single stage, 20 blade axial-flow fan powered by a 15,000 horsepower variable speed, synchronous electric motor that provides airflow in the closed-return, variable-density tunnel. Original from NASA. Digitally enhanced by rawpixel.MorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 1200 x 1181 px | 300 dpiLarge JPEG 2048 x 2016 px | 300 dpiTIFF 2048 x 2016 px | 300 dpi | 23.65 MBFree DownloadNew renovated NASA Ames Research Center 12 foot Pressure Wind Tunnel, seen here is the single stage, 20 blade axial-flow fan powered by a 15,000 horsepower variable speed, synchronous electric motor that provides airflow in the closed-return, variable-density tunnel. Original from NASA. Digitally enhanced by rawpixel.More