An 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.

---

Size: 4155px × 3048px
Photo credit: © NASA/piemags / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -16xl, -flight, afrc, armstrong, center, flight, nasa, refuels, research