[deepnotderp]

Both the Mig-29 and Su-27 are based on the same aerodynamics research. That they look similar to the F-15 is probably more due to the fact that they were all designed to be air superiority fighters than any espionage.

[perl4ever]

Something that caught my eye was not just the overall layout but the intakes' shape.

When I say it looks like the F-15, I'm saying, as opposed to, say, the F-16 or F-18 or F-14.

And it's just a comment on the superficial appearance, not based on aerospace knowledge or about espionage.

This thread isn't even about espionage, is it?