Multiple decades between the two platforms, even with upgrades, many things cant be updated on the f15
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Ah Yes, at least partially true.
The airframes are pretty much stuck at the 1970s. Some minor mods can be done, nothing major.
The engines can be upgraded, don’t know if this was done. I walked 45 years ago.
The electronics, particularly the radar and electronic warfare equipment and cockpit isplays, can be completely ripped out and replaced with new equipment. The art has improved considerably. That’s the edge we have over adversaries.
And the F-15 airframe is still pretty durned good; better than most.
Worked Eagles for about 4 years.
Yes I agree with what you said, but you cant make them stealth anywhere near as good as an f35, much less an f22. I know they have the SE version but theres only so much you can do. They can be improved but only so much.
The 14 was always my favorite jet - just cool as all get-out with the swept wing design.