I repeat, Says who?https://twitter.com/boblucasjr/status/767753697967370240 …
@SITEZwebdesign @airandspace An article in the Smithsonian's Air and Space magazine, General Yeager. 1.02 Mach, iirc.
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@SITEZwebdesign @airandspace An article in the Smithsonian's Air and Space magazine, General Yeager. 1.02 Mach, iirc.