50 years ago...
October 24 1968, NASA test pilot William "Bill" Dana made the final (199th) flight in the hypersonic X-15 flight research program. A 200th flight was cancelled due to bad weather and the program was permanently cancelled on 20 December 1968...
Only 12 pilots flew the rocket-powered
X-15 aircraft, among who Neil Armstrong (7 flights) and William "Pete" Knight (16 flights) who, in October 1967, set the official world record for highest speed ever recorded by a manned aircraft of Mach 6.7 (7274 Km/hr)... unchallenged today !
The tuning fork
Accutron Astronaut wrist watch was their timepiece of choice
😉
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