You gotta love the Mig-25.
Capable of Mach 3.2 - one was clocked flying over Israel at that speed. But apparently, when it got back to base, the engines were finished as they had gone into overspeed and burned themselves to bits. Apparently it's actual top speed (without having to throw the engines out when the plane got home) was
only Mach 2.8.
And the radar was REALLY crude but incredibly powerful. It would simply burn it's way through jamming and was supposedly so dangerous that it was VERY harmful to humans that got anywhere near it while switched on and would kill small animals on the sides of the runway if the pilot turned the radar on before takeoff.
This big thing defined BRUTE FORCE...I love it.
But it's successor, the Mig-31 Foxhound, is even more impressive.
It is bigger, has the same top speed, two crew, a longer range, was the world's first aircraft with first phased-array radar (so it could track ultra-low flying planes/cruise missiles) and carries missiles (the R-33S or E) that is basically a Phoenix missile knockoff, imo - but with a range of over 300 kilometers.
Surely, one of the most potent, air defense fighters in history.