1 min readThe NACA: A Look BackNASAMar 02, 2010 Image Article NACA High-Speed Flight Station test pilot Joseph Walker in 1955 as "Cowboy Joe" and his steed-in this case the Bell Aircraft X-1A. NACA High-Speed Flight Station test pilot Joseph Walker in 1955 as “Cowboy Joe” and his steed-in this case the Bell Aircraft X-1A.Image Credit: NACA