No, the reason that I quote 120km is that is the tech limit today’s radar can effectively lock a target. If your CM keep flying in low altitude all the way to target, with the help of planet curve, the Aegis will only be able to detect the incoming missile in the last 30km-40km. That was Russians would rather put their backfire pilots in the risk by shooting the CM only 150km away from CV to keep the CM at L-L.
No matter how much your tech evolve, there is always some boundary inside which you need to work. You could have a RADAR for tracking purpose with a range of 1000 km, but you simply can't use it for target acquisition purpose.
Well, as I pointed out in the above, flying in high altitude vs low altitude, is completely different thing. When the CM keeps sea-skimming all the time, the Aegis system can only start tracking the missile 30-40km away. But if in 10km high altitude, there is almost no blind spot at all, radar will be able to start tracking the CM from 300-400km away and targeting 120km away.
It means the defence system would get around 2 mins to target the CM at that altitude. Now everything depends on the processing speed, algorithm and kill probability of the defensive system. On rough it would fire around 3 to 4 missile to target one single CM to attain 1.0 Pk. Now here the salvo does its work.
No in case of a supersonic one, things are much different: 1. Supersonic CM doesn’t have valle-hugging capability which sub-sonic CM does. This makes it impossible for supersonic CM to fly between mountains, that is where the blind spots are in the land warfare; 2. When your missile flying at supersonic speed, you can’t keep it high maneuvering through the whole flying route, that will shorten their range further; 3. You can’t make a complicated flying route for them either as that will shorten their range as well. Without these 3 important advantages, supersonic speed CM is quite vulnerable before it is diving towards its target, which is majority of her journey.
I do completely agree with your 2nd and 3rd point. That's the very reason why supersonic CM does implies simple flight pattern like HI-Hi or Hi-Lo.
Regarding 1st point, let me just point out one thing. BRAHMOS does take a evasive 'S' maneuver in its last stage to ditch CIWS. Now this 'S' maneuver is a norm in almost all CM. So it implies that like other CM, it is maneuverable too. Also a point to take note is, subsonic CM's too does have limitations in its maneuverability factor. Its not like that it takes drastic high angle maneuver. In case of supersonic CM, the points which doesn't go well with high maneuverability is,
Structural integrity
Mass
Range
Regarding you’re your magic salvo attacking, I don’t know if you understand what I wrote or even read what I wrote. I don’t want to repeat what I already said. I only want to point out another big difference: Unlike US, UK or India, Russia and China, have always been relying on their air-defence missile forest to protect their armed forces, the intensity of their air-dfence missiles are more likely overwhelming your CM instead.
I would be sharing few details of PLA RADAR here.
It proves my point – a land base target will require a lot more missile to take out comparing a ship.
I didn't mean that the missiles were offcourse. There was a question mark in between what I wrote.
Really? Firstly, Snark was a sub-sonic CM not supersonic; Secondly, Buran was cancelled when only 2 prototypes were built; Thirdly, in the peak of cold war, both were deploying hundreds of mid-range ballistic missiles in Europe but none of them was looking at the supersonic CM even though both had the matured tech, doesn’t that tell you something?
I didn't said SNARK to be a supersonic missile. Buran and SNARK had been cancelled because of the progress made in BM technology after WWII. The main drawback of CM was its launch mass and warhead capability. If you had read history well enough, you might have known that during the height of cold war, both US and USSR were depending on Nuclear payload rather then conventional ones. SNARK and Buran were designed with Nuclear payload and due to this fact and along with immature technology of that time, these were not reliable enough to deliver the payload. The cheap way around is to use BM which were developed along with.
Wish I could have said, "Your ignorance is our blessing". But alas I couldn't say that, because you might be ignorant, but PLA and PLAAF were not so ignorant enough in this regard.
BTW........... Here is some data regarding RADARs which are being used by China.
1) NRIET/CEIEC/CETC YLC-2/YLC-2A/YLC-2V High Guard 3D Long Range Surveillance Radar
Detection range: 330 km
Range accuracy: 200 m
Range resolution: 300 m
Azimuth: 0º ~ 360º
Elevation: 0.5º ~ 20º
Height accuracy: 400m @ 200 km
750m @ 300 km
2) CEIEC/JESE JL3D-90A / 3D Commander
Target detection data:
Range: 300km
Altitude: 20,000m
Range accuracy: 150m
Altitude accuracy: 500m
Azimuth accuracy: 0.25°
Range resolution: 90m
Azimuth resolution: 1.5º
3)
JY-11 Specifications: (Pd=80, Pf=10-6, RCS 2m2)
Band: 2.7 - 3.4 GHz
Detection range: >180km
Detection altitude: 15,000 m
Elevation: 0º ~ 30º
Azimuth: 0º ~ 360º
Resolution:
Range: 200m
Azimuth: 2.5º
4) JY-11B Specifications: (Pd=80, Pf=10-6, RCS 2m2)
Target detection data:
Range: 210km
Altitude: 12,000m
Elevation: 0º ~ 35º
Azimuth: 0º ~ 360º
Range accuracy: 50m
Azimuth accuracy: 0.3°
Height accuracy: (≤100km) 500m
Range resolution: 100m
Azimuth resolution: 1.8º
5) ECRIEE / CETC JY-29 / LSS-1 Low Altitude 2D Air Defence Radar
Coverage: (Pd= 80%, Pfaa=10-6, SW1, σ = 2 m2)
Azimuth 0º~360º
Elevation: 0º~30º
Instrumented range: 250 km
Search range: 200 km
Height: 12,000 m
Target capacity: ≥72 tracks
Given a detection range of 180km would suggest maximum PRF in the order of 830pps.
Measurement Accuracy: (rms)
Range: 100 m
Azimuth: 0.5º
Target Resolution: (Pd=0.5)
Range: 300 m
Azimuth: 2.0º
6) ECRIEE / CETC JYL-1 Long-range 3D Air Defence Radar
Coverage: (Pd=80%, Pf=10-6, SW1, RCS=2m2)Azimuth 0º ~ 360º
Elevation: 0º ~ 25º
Search range; 320km
Height: 25,000m
Measurement Accuracy (rms):
Range: 100m
Azimuth: 0.3º
Height: 600m @ 200km
Azimuth: 0.3º
Resolution:
Range: 200m
Azimuth 1.5º
7) CETC YLC-18 High Mobility Medium Range Low Altitude 3D Radar
Specifications:
Operating frequency: EF-band
Coverage: (Pd = 80%, RCS = 2m2)
Range: ≥ 250km
Height: ≥ 12,000m
Elevation: 0º ~ 35º
Azimuth: 0º ~ 360º
Its detection range suggest instantaneous PRF of 600pps thus operational PRF of approx 400 is suspected.
Measurement accuracy: (rms)
Azimuth: ≤ 0.3º
Range: ≤ 100m
Height: ≤ 600m (within 200km)
Now almost all these reading are with a target RCS of 2sq mtr.
Now just compare what would be the detection and engagement range of any CM. Now add a speed of 2.8 Mach in that.