Former NACA test pilot Scott Crossfield at the 1998 "Men of Mach 2" symposium, an event celebrating his work in the 1950's on the D-558-II Skyrocket aircraft.

Former NACA test pilot Scott Crossfield at the 1998 "Men of Mach 2" symposium, an event celebrating his work in the 1950's on the D-558-II Skyrocket aircraft.

Former NACA test pilot Scott Crossfield at the 1998 "Men of Mach 2" symposium, an event celebrating his work in the 1950's on the D-558-II Skyrocket aircraft.

Photographer NASA/Tony Landis
Location AFRC