What are you talking about?
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MIg 25 FM is getting fixed via these bug reports. No more funny mach 1 rate fighting STEEL interceptor. (Rightfully so)
kizvy
December 8, 2025, 3:36pm
250
Better rate than the damn f-2 lol
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The MiG-25PD’s improved R-40RD missile, with its extended ~77 km launch range , ~50 g boost acceleration, and Mach 4.5 top speed, made a head-on shot against the SR-71 physically feasible . In such a geometry, the combined closure rate of roughly 2.5 km/s meant the missile could theoretically reach the intercept point in about 30 seconds , provided its seeker wasn’t jammed and the SR-71 made no maneuver , even a 1–2° jink at Mach 3 creates kilometres of lateral displacement, quickly breaking the solution. In contrast, a tail-chase shot was impossible : the R-40RD’s ~3-second powered flight and 500 m/s effective overtake margin couldn’t sustain the climb and pursuit over the required ~150 seconds , especially with the MiG-25PD flying lower and slower than a Mach 3.2 SR-71 (even with a more generous powered flight the result was the same). The physics, thrust limits, and altitude gap fundamentally prevented stern-aspect interception.
Gents, I did some calculations with A.I on the topic of SR 71 interception feasibility by a MiG-25, based on all data I have in this suggestion, after numerous recalculations and corrections this is the result I got. An interception of an SR 71 by a MiG-25PD was possible under very specific conditions .
