Alfat8 wrote:Sound like misreporting again, the mach 8 is probly Zircon's theoretical max, the mach 12 thing sounds more like Sarmat.
GarryB wrote:7km/s is a pretty average reentry speed... which is about mach 22... mach 12 is just under 4km/s... which the Triump and late model S-300s can intercept already... assuming it flys straight.
I think you are correct. When we discussed about RS-24 (RS 26 not under discussion) we used to say mach 12 for warheads . I do not know what ICBM warheads flight profile is but I think most of Russian missiles(other countries do not have these type of missiles) they slow before they come in contact.
I believe the ICBM warheads strike their targets at mach no 5 -8 far lower than 7-8 km /sec speeds at which they separate.
Ironically slowing of speeds before hitting targets
is due acquiring of target ,
last stage tracking ,
imaging(radar ,pre determined flight paths do not require radar, thermal to detect targets, they conduct approximate hitting at target only useful for icbm..)
I am quite sure that previously warheads used to decrease their speeds before hitting their targets but with the new advances of re-targeting , multi targeting "on the fly mode" I am not sure what is the exact speed of warheads.
miketheterrible wrote:no, since warheads now for ICBM's are mach 20. So more like mach 20 for Sarmat. 12 Mach is more than likely for Zircon
On teh whole I agree with the notion that ICBM warheads decrease their speeds to mach 5 to 6 before hitting their targets. Suppose the ICBM warheads have to by pass anti missile then they will by pass/conduct evasive manuevres at like 400kms to 800 kms distance from the targets not 4 -10 kms distance from target.
As far as production is concerned RS-24 and Bulava and under full production where as RS-26 and sarmat are delayed due to (Russia U.S reset in 2017).
Russia has recently made some excuses to Trump admin for mass production of RS24 and bulava. and is deliberately delaying rs-26 and sarmat due to (detente and may be economic partnership programs with U.S)