Lockheed’s YF-12A was a Mach 3.2 Cold War interceptor born from the same Skunk Works lineage that produced the A-12 and SR-71 ...
In the mid-1960s, Lockheed’s Mach 3 YF-12 and North American Aviation’s Mach 3 XB-70 Valkyrie were both flying test missions ...
A Boeing F-15 is still quite fast, but not nearly Mach 3, the company’s program manager said on Feb. 23, correcting a previous statement. “Mach 2.497 is what we can get out of the Eagle jet and that’s ...