A tough fight.
Close in at the merge, if the Su-57s survive the initial AMRAAM volley, the surviving F-15Cs would be at somewhat of disadvantage against the extraordinarily maneuverable Russian fighters. However, the F-15C community has a lot of practice flying against the extremely maneuverable F-22s, and while they are disadvantaged, Eagle pilots do win dogfights against the Raptor on some occasions. Moreover, with the addition of the Joint Helmet Mounted Cueing...
Read this story at The National Interest