Prandtl-D1 and Prandtl-D3NASA Armstrong says goodbye to its Prandtl-D1 that is being shipped to the National Air and Space Museum, Smithsonian Institution and Prandl-D3 that will be going to the California Science Center. Image Credit: NASA/Lauren Hughes Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/amf-afrc2019-0015-11/Copy URL to clipboard> DownloadShareTakenFebruary 7, 2019ProducerAFRCImage CreditNASA/Lauren HughesSize1920x1280pxPIA NumberAFRC2019-0015-11