The F-4 Phantom II's brute-force design is why modern air forces can't replace it

The F-4 Phantom II was noted for being a "brick" that had the sheer thrust that allowed it to fly into combat and win.
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F-4 Phantom: Why Iran Still Flies a 60-Year-Old American Fighter Jet

Key Points - The McDonnell Douglas F-4 Phantom II, an iconic American fighter from the Vietnam era, remains the most numerous jet in Iran's air force, with around 63 still in service. -Iran acquired ...