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 ...
Many fascinating variants were proposed while trying to save the XB-70 Valkyrie program. We have often written about the XB-70 Valkyrie, With a cruise speed of Mach 3 and operational altitude of ...
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Turning a spy plane into a Mach 3 interceptor - the YF-12

The YF-12 was Lockheed’s attempt to transform the A-12 reconnaissance aircraft into a Mach 3 interceptor armed with powerful ...
Summary: Boeing’s F-15EX Eagle II, boasting remarkable aerodynamic efficiency and powered by twin GE F110-GE-229 engines, initially claimed to reach speeds nearing Mach 3. However, Boeing program ...