Vintage Aviation News on MSN

Grounded dreams: The RF-4X Phantom – the Mach 3 legend that never flew

The story of the RF-4X Phantom "Peace Jack" project, an attempt to build a Mach-3 Phantom interceptor to counter Soviet ...
The National Interest

F-15EX Eagle II Fighter Can’t Hit Mach 3 Afterall

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 ...