NASA’s Crossflow Attenuated Natural Laminar Flow (CATNLF) Project Tests Model Wing on F-15

A F-15 aircraft owned by NASA’s Armstrong Flight Research Center in Edwards, California, flies above a mountain range on Tuesday, April 21, 2026. The agency’s Crossflow Attenuated Natural Laminar Flow (CATNLF) test article is attached to the bottom of this F-15. This project aims to lower fuel costs for future commercial aircraft by testing a scale-model wing designed to improve laminar flow.