Hybrid-Electric Integrated Systems TestbedEngineers at NASA’s Armstrong Flight Research Center integrate electric propellers onto a modified wing to test complex electric propulsion systems onboard the Hybrid-Electric Integrated Systems Testbed, or HEIST.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/hybrid-electric-integrated-systems-testbed-5/Copy URL to clipboard> DownloadShareSize1041x835px