max steel wrote:Singular_trafo wrote:
200 km maximum altited means minimum 2000 m/sec velocity.(without considering the air friction)
However this means that at 100km the rocket has only 600 m/sec, insufficient to intercept anything as fast as an ICBM,even with nuclear warhead.
S-500 missile will travel at 7 km/s. Is it enough to trget icbms ? because re-entry vehicle travel at 8-9 km/sec.
There are intercept windows. The size of these windows increases with the speed of the interceptor. With a 7 km/s exo-atmospheric
interceptor any existing ICBM warhead is accessible. Of course the interceptor has to be launched early enough but that is not an issue since
the warheads are tracked over very large distances and not just when they are raining overhead.
I doubt that the S-500 will be designed around endo-atmospheric interception. This is the most difficult ABM task since the incoming warhead
is at its maximum velocity and the time window before hitting the target is on the order of one minute. Exo-atmospheric or mid-course interception
is the only viable option if boost phase interception is not possible.