[The Great RJ]

I recall that Western experts were surprised that the MIG-25 was not built mostly of titanium like US Mach 2+ jets, but of steel.

[skinkinthegrass]

the leading edges were protected by titanium strips
and had (surprising short) range of 186 km
could do 3.2 mach after that;
the engines were unuseable/fried
use advanced tube technology
radar strong enough to
kill rabbits @ couple meters...
basically an all weather, short range interceptor.

[Fiji Hill]

I recall that Western experts were surprised that the MIG-25 was not built mostly of titanium like US Mach 2+ jets, but of steel.

Robert K. Dornan, who was running for Congress at the time, called the MiG-25 a "flying tank."

[Timber Rattler]

And it was riveted together, with rust stains on the seams.

[Hulka]

And that it had rust on it.