F-16XL Refuels In-FlightAn F-16XL refuels in-flight. Only two XLs were built, and NASA eventually operated both for experimental purposes, including an active supersonic laminar flow experiment.Image Credit: NASA/Carla Thomas Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/amf-ec96-43548-12/Copy URL to clipboard> DownloadShareTakenMay 13, 1996ProducerAFRCImage CreditNASA/Carla ThomasSize1920x1408pxPIA NumberEC96-43548-12