F-14 and F-15ABCDE are even bigger than SU-27.............(25 m2 VS 15m2)I always wondered how much the canted radome aperture could improve the RCS and as a side effect the BVR performance of a Flanker on a 1v1 basis. Like essentially, aside from the Mig-31, these things have the biggest RCS of an active, high end fighter although we don't know the details.
While new generation Su-27 / 30 /34 / 35 are reduced to 1-4 m2