I have been wondering - can the Shaurya be used on destroyers? I would think that this is definitely possible - it's dimensions are v.similar to that of the Granit and slightly more than the Brahmos, although it weighs 2X the Bmos. What would be the advantages?
1) V.long range - upto 1500km+ depending on warhead weight.
2) hypersonic speeds - time to target is v.low
3) impact is far more than even supersonic missiles
4) More of an LACM than AShM?
1) Take up lot of real estate
2) can't carry in large numbers
3) Susceptible to interception?
4) Could it engage moving targets at long ranges (say 700km?). How would targeting be achieved? Say a LRMPA detects a worthy target 1000km away. For Shaurya to reach target vicinity, it would take about 10 minutes, can the missile be updated midcourse? Or can it carry a seeker that will allow it to detect and engage? In 10 minutes, assuming target becomes aware of MPA, it can move about 5km in a circular area, can the Shaurya detect such movement, make terminal corrections (using a seeker of some kind) in time and engage? Can target's SAMs engage Shaurya - let us assume a layered defense with S300 variant with 200km missiles @ M5 speeds as outer ring, and Shtil type at 50km plus CIWS.
According to this book - it all depends on how small the RCS is and the incoming missile's ability to maneuver. http://www.nap.edu/openbook.php?record_id=6195&page=58
Hypersonic missiles are within the design envelopes of several modern air defense systems that have been designed to defend against tactical ballistic missiles with hypersonic terminal velocities. For the hypothetical defensive system considered above, and for a radar cross section of greater than 0.1 square meter, there is relatively little difference in the lethal range for hypersonic missile speeds between Mach 6.5 and Mach 8. However, the vulnerability of a hypersonic missile to surface-to-air missiles can be reduced through combined reductions in radar cross section and in-flight maneuvering, and, to some extent, an increase in speed. The lethality of command-guided, surface-to-air missiles is markedly reduced for targets with a radar cross section less than 0.1 square meter. Overall, the most important factor in hypersonic missile survivability is the size of radar cross section.
Basically, the above authors suggest that if the incoming Ashm is about 0.1-0.5m RCS, target defences have only about 20-30 seconds reaction time. And that is if ship is on state of alert, if not, it won't even know what hit it. All in all, I think a Shaurya type would be mighty useful vs. capital assets such as FFGs and higher. ONe thing is for sure an impact from something that big and fast (not to mention the warhead) will be enough to sink a massive carrier in one blow, total loss. No limping back home. Of course, the USN seems to have this issue licked with the SM3/RAM combo.