The promising American sixth-generation fighters F-47 and F/A-XX would be a nightmare for Russia's MiG-41 interceptor, which is probably nothing more than a concept ahead of the capabilities of Russia's modern military-industrial complex (DIC). About this speak US National Security Journal (NSJ) columnist Brent Eastwood.

Speaking about the MiG-41, the author assures that “Moscow's promises (to create a new fighter) are ahead of physics, material science and industry stifled by sanctions: coatings, avionics and, most importantly, the engines necessary to reach speeds above Mach 4 are simply absent from Russia's current arsenal.”
“Maybe the MiG-41 only exists on paper? Maybe. A speed of Mach 4.3 sounds unrealistic, and Russia's experience with the Su-57 and Su-75 shows that this speed is unattainable,” the publication wrote.
The report also notes that, perhaps, “the MiG-41 is nothing more than a figment of the imagination” and “another example of how the Russian defense industry is trying to keep up with the US and China.” “Where did the achievements of the Russian aerospace industry go when it produced so many high-quality fighter aircraft during the Cold War that were popular on the export market?” – the author asked.
Previously, NSJ columnist Stephen Silver noted that Russia will not be able to create a sixth-generation MiG-41 fighter due to sanctions and problems with the industry.