![Bill Dana, test pilot and aeronautical engineer, reached Mach 5.38 on the 199th and last flight of the X-15 in 1968. D...](https://img3.medioq.com/192/957/204907221929577.jpg)
25/10/2022
Bill Dana, test pilot and aeronautical engineer, reached Mach 5.38 on the 199th and last flight of the X-15 in 1968. Dana's long career at NASA's Armstrong Flight Research Center spanned more than 48 years, during which he logged more than 8,000 hours in over 60 different aircraft.
More: https://go.nasa.gov/3zc1BKq