This is what probably Garry is referring to , Its known TOPAZ , I think 2 of these were sold to US in early 90’s

As far as I know the range is 120km in the low low profile. Against soft targets a high altitude flight profile could certainly extend this and it might be even be possible to program its engines throttle settings so that it can fly slower over a longer range for unprotected targets like civilian shipping or perhaps some ground targets if a particular land attack version is built.

Thats Interesting , So if low-low is 120 KM , Hi-LO or Hi-HI-LO 150-160 KM is probably achieveable and same can be done with lesser speed .

Is any one aware of the kind of materials(steel/alloys ) the Russian use for sun construction , the US uses HY-80/100 for sub construction , do russian use smilar materials , I understand that Akula can dive as deep as 600 meteres , Sev could be higher so probably new materials ???