John wrote:That's true for any missile they quote engagement range when terminal speed allows (around Mach 2-3) it intercept the target (doesn't matter if it's powered or not powered). Akash has low max speed so it's ability to intercept a target when motors shuts off will be rather limited.
Right, so we agree the range quoted is for the time when the motor is "on", and its SSKp is high during that period.
When it comes to the Akash, for the targets it envisages, i.e. aircraft, air breathers, PGMs, adversary systems are well within its 2-3M envelope, so its speed is hardly low for the targets it needs to hit. A constant energy state helps within that envelope, the missile can pull G easier than a human. Its engagement geometry is plotted beforehand (lead vs lag) to ensure the trajectory is optimized for energy management.
A higher sprint speed could be useful against BM's but there too, high max speed comes with a direct correlation to stresses placed on structure and hence the focus on a trade-off between the two. Try doing both, and the size starts leading you to a system which is far more than a relatively small sized mobile SAM unit.
As I stated before need to ditch the Ramjet and switch to a solid propellant rocket to maximize it's capabilities. IMO it could easily achieve a engagement range of over 70 KM with that switch.
They are not switching for that, but because of the weight and complexity of scaling up the existing ramjet system, they will move to a dual pulse system. Though not as advantageous as an Akash (constant energy state), the 2nd kick in motor should improve Pk to similar levels.