PLAN Anti-ship/surface missiles

Brumby

Major
Not necessarily actually "real-time", but close enough to provide adequate targeting information for the likes of a DF-21D launch, which as I said they must already have in some form or else they would not have already fielded this missile.
What I typically find is that there is a big divide between assumption and reality when technical considerations are placed into the picture. Your statement about the DF-21D is premised on :
(a)the availability of "real time" targeting information. You need to explain the source of your targeting information and how it would work within the decision chain to execute the plan.
(b)the capability of the DF-21D and the resulting kill chain. Such issues had been discussed before from it being untested to probable vulnerabilities within the kill chain. However this is still secondary and goes back to (a) i.e. availability of actionable real time targeting information.

Also, ECM will not fool an EOsat, and will also break EMCON for sure.
If you are talking about satellite constellations that can provide SAR or GMTI data, I suggest that you provide some more substance to argue your case. There was a report that I posted on this forum that discussed the Chinese development in this area but from memory the coverage was limited. There is no doubt the Chinese is building a kill chain infrastructure but developing and executable are two different set of conversations.

China already has many of those and are undoubtedly launching more in the years to come. No doubt these sats are vulnerable to destruction but just as the US has backup plans for China taking out its satellites during war, China also has contingency plans to replace theirs quickly as needed. I believe the Long March 11 series is developed specifically for this mission. I'm serious when I think they will enact coverage of the entire Western Pacific, by which I mean the 2nd island chain and perhaps somewhat beyond. Not sure what you mean by Western Pacific since there is no official definition of this term.
I am aware that the Chinese are building sat constellations to provide coverage. However the Western Pacific is huge space even if it is from the first chain outwards. I have seen a very detailed analysis done by the CBO on sat constellation on North Korea alone, and the technical issues and cost associated with such "real time" coverage is up to $100 billion. If you extrapolate that across the Western Pacific maybe a $1,000 trillion might do it.
If you think the Long March 11 series can do the job, I would like to see something more substantive than a claim

While not necessarily 100% reflective of what would actually happen, simulations are all anyone has, including the USN. Unless you are proposing a live enactment of a several hundred missile saturation attack on a carrier. Until the day that happens, you've got simulations. And I have no doubt both China and the US have reenacted these exact types of simulations hundreds, perhaps thousands, of times already.
I am merely responding to your comment about "knowing" such an outcome. No one knows outside of simulated figures. I have not seen any analysis along the lines of a "RAND" type but I venture to guess if you apply the different variables to it, such an undertaking as against a carrier requires significant resources, many coordinating moving pieces within the kill chain, and a large unknown on the outcome. It is not simply firing a 400 km range ASM against a moving target.

Even if the range were somewhat less than 400 km, say 300 km at mach 3, the carrier has only bought itself another km or so of travel time. Launching at 300 km instead of 400 km does not put the launching fighter/bomber at any greater risk from the CSG since only the SM-6 has the range to reach out that far in both cases, and the next longest range missile, the SM-2, can't reach out to either distance. I have little doubt the Flanker series (J-11, J-15, and J-16) will have the ability to launch these as well.
You are ignoring CAP and being able to find and target a carrier.

In any case, "no way" is a term I definitely wouldn't use, since it's a matter of defeating the carrier CAP, which is not invincible, so how can you say "no way"? Yes, you will have to fight through a determined air defense fighter screen, but if you have enough fighters on your side, you will get through.
You are right. "No way" was a hyperbole expression. If you throw enough resources against a target you will enhance your results and it is simply a trade off between results and risk to your resources.

How do you know there's no way a fighter radar cannot track a carrier at 400 km?
I know this question was directed at SB but I would like to know your source of a fighter with the type of radar that can accurately classify a carrier from 400 kms with the type of clutter in a sea environment.
 

SamuraiBlue

Captain
Radar is not magic you require a large area to house a low frequency radar array and needs a large amount of electricity to power them. Neither of which a fighter plane has.

For S-band utilized by AN/SPY-1 radar long range scan, you need 75~150mm for a single node.
The X-band cannot reach that kind of distance without a large energy source.

The best a fighter can do is around 100Km at most.
 

getready

Senior Member
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Here's a GIF of a YJ-12 detonating after penetrating and exiting a target.

UxBePUd.gif
Wow first I've seen that of Yj 12. Thanks
 

antiterror13

Brigadier
Radar is not magic you require a large area to house a low frequency radar array and needs a large amount of electricity to power them. Neither of which a fighter plane has.

For S-band utilized by AN/SPY-1 radar long range scan, you need 75~150mm for a single node.
The X-band cannot reach that kind of distance without a large energy source.

The best a fighter can do is around 100Km at most.

you meant the best Japanese fighter? ... yes I totally agree :rolleyes:
 

Iron Man

Major
Registered Member
What I typically find is that there is a big divide between assumption and reality when technical considerations are placed into the picture. Your statement about the DF-21D is premised on :
(a)the availability of "real time" targeting information. You need to explain the source of your targeting information and how it would work within the decision chain to execute the plan.
(b)the capability of the DF-21D and the resulting kill chain. Such issues had been discussed before from it being untested to probable vulnerabilities within the kill chain. However this is still secondary and goes back to (a) i.e. availability of actionable real time targeting information.
If you are talking about satellite constellations that can provide SAR or GMTI data, I suggest that you provide some more substance to argue your case. There was a report that I posted on this forum that discussed the Chinese development in this area but from memory the coverage was limited. There is no doubt the Chinese is building a kill chain infrastructure but developing and executable are two different set of conversations.
Really, they're different? I see, so in your view, it is possible that the Chinese are developing a NON-executable kill chain infrastructure. They've already finished developing this large missile (and which incidentally is already deployed), into which they've probably sunk billions of yuan, but somehow they were apparently too stupid to realize they may not be able to target this thing, so that nobody in the Rocket Contruction Department got the memo that carriers are hard to find and target so that they could have just canceled the whole thing instead of wasting everybody's time. I guess you think all those Chinese designers and engineers are doing everything backwards. :rolleyes:

I am aware that the Chinese are building sat constellations to provide coverage. However the Western Pacific is huge space even if it is from the first chain outwards. I have seen a very detailed analysis done by the CBO on sat constellation on North Korea alone, and the technical issues and cost associated with such "real time" coverage is up to $100 billion. If you extrapolate that across the Western Pacific maybe a $1,000 trillion might do it.
I would like to see the link for this "detailed analysis" before I let you extrapolate anything.

If you think the Long March 11 series can do the job, I would like to see something more substantive than a claim
What's "more substantive" to you? Official CNSA documents regarding the LM-11 written in Chinese? It is well-known that the LM-11 is designed to be a quick-reaction quick-launch rocket system:
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I am merely responding to your comment about "knowing" such an outcome. No one knows outside of simulated figures. I have not seen any analysis along the lines of a "RAND" type but I venture to guess if you apply the different variables to it, such an undertaking as against a carrier requires significant resources, many coordinating moving pieces within the kill chain, and a large unknown on the outcome. It is not simply firing a 400 km range ASM against a moving target.
Now you're arguing just to argue. I have never said killing a carrier is a simple matter of launching a 400 km range ASCM against a moving target. That specific situation was drawn from the original article which had made certain assumptions at the start, namely that the Flanker force knew where the carrier was, had already penetrated CAP, and was in position to launch the YJ-12, and the scenario unfolded from that point forward.

You are ignoring CAP and being able to find and target a carrier.
I have never ignored CAP during this entire discussion; in fact that wolfboy actually accused me of dishonestly inserting CAP into the scenario to bolster the carrier's defenses, even though the author had already mentioned it in his original scenario. So which is it, am I ignoring CAP or artificially planting one?

I know this question was directed at SB but I would like to know your source of a fighter with the type of radar that can accurately classify a carrier from 400 kms with the type of clutter in a sea environment.
Radar is not magic you require a large area to house a low frequency radar array and needs a large amount of electricity to power them. Neither of which a fighter plane has.
For S-band utilized by AN/SPY-1 radar long range scan, you need 75~150mm for a single node.
The X-band cannot reach that kind of distance without a large energy source.
The best a fighter can do is around 100Km at most.
Really, that's the best a fighter can do? Then how is it that the Zhuk ME can detect a patrol boat-sized target at 150 km and a destroyer-sized target at 300 km? This Zhuk model is not even an AESA. It's more than 10 years old pulse-doppler technology:
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I would like to know where you are getting 1) your radar horizon calculations, and 2) your claims that fighter radars do not have the power to detect targets more than 100 km away. This claim is patently false just on the face of it, since even many old-school radars already had ranges far in excess of 100 km. The pulse-doppler AN/APG-71 of the F-14 for example already had a range of 370 km vs fighter-sized targets. The AN/APG-77 AESA of the F-22 has a range of 400+ km vs a 1 m^2 target.
 
... They must already have at least the rudiments of this capability given the introduction of the DF-21D.

...
I was glad to see after some time the Dong-Feng pulled again LOL
I recall ferocious discussions in
Modern Carrier Battle Group..Strategies and Tactics
more than two years ago ... it seemed to me back then "the weakest link in the chain" would be the re-entry vehicle going into the terminal phase of the attack (activating/running sensors/controls at enormous temperatures/speeds in exceedingly short times)
Iron Man
maybe?
 

Brumby

Major
Really, they're different? I see, so in your view, it is possible that the Chinese are developing a NON-executable kill chain infrastructure. They've already finished developing this large missile (and which incidentally is already deployed), into which they've probably sunk billions of yuan, but somehow they were apparently too stupid to realize they may not be able to target this thing, so that nobody in the Rocket Contruction Department got the memo that carriers are hard to find and target so that they could have just canceled the whole thing instead of wasting everybody's time. I guess you think all those Chinese designers and engineers are doing everything backwards. :rolleyes:
The problem with your reasoning is one of logic. You are insisting that because the Chinese have developed the DF-21 therefore they must also have developed a credible ISR for targeting. While both of them might me part of a system of systems, it does not equate to the notion that because one is ready the other must be. Both programs self exist independent of the other. There are no conditions that demand that both must be mutually present. You have to demonstrate mutual coupling of existence and completion.

I would like to see the link for this "detailed analysis" before I let you extrapolate anything.

What's "more substantive" to you? Official CNSA documents regarding the LM-11 written in Chinese? It is well-known that the LM-11 is designed to be a quick-reaction quick-launch rocket system:
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You are the one claiming that the Chinese have sat constellation that can provide "real time" targeting information. Whether you extrapolate my figures is irrelevant because you are the one asserting the existence and availability of Chinese sat constellation.

Btw, the link you provided basically reported the launch and general description which in my view are irrelevant to the subject of the conversation. Please point out to me from the article that describes its ISR capabilities to generate "real time' targeting information as you claim.

Now you're arguing just to argue. I have never said killing a carrier is a simple matter of launching a 400 km range ASCM against a moving target. That specific situation was drawn from the original article which had made certain assumptions at the start, namely that the Flanker force knew where the carrier was, had already penetrated CAP, and was in position to launch the YJ-12, and the scenario unfolded from that point forward.
I am just responding based on your comments. You have the liberty to set the scope of your scenario that you wish to discuss. If you want your starting point to be "that the Flanker force knew where the carrier was, had already penetrated CAP, and was in position to launch the YJ-12", I am not sure what else is there to discuss besides whether the carrier sank or not.

I have never ignored CAP during this entire discussion; in fact that wolfboy actually accused me of dishonestly inserting CAP into the scenario to bolster the carrier's defenses, even though the author had already mentioned it in his original scenario. So which is it, am I ignoring CAP or artificially planting one?
I don't really care what wolfboy said because my conversation is with you and not with wolfboy.

Really, that's the best a fighter can do? Then how is it that the Zhuk ME can detect a patrol boat-sized target at 150 km and a destroyer-sized target at 300 km? This Zhuk model is not even an AESA. It's more than 10 years old pulse-doppler technology:
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In radar, there is a major difference between detection and targeting. Detection is a function of probability. Russians tend to use 50 % probability and declare victory. Western radar designers typically use 70 to 80 % probability threshold. Also detection claims are based on maximum range and under ideal conditions. Due to dwell time and search conditions, normal detection are usually half of maximum as a rule of thumb. Target tracks by definition requires three successive detection and as a result tends to be 70 % of normalised detection range. All these are rule of thumb adjustments because there are a lot of BS out there over detection range. Therefore, the 300 kms detection becomes 150 kms detection normalised and 105 km for targeting. This is even before jamming is applied.
 

SamuraiBlue

Captain
Really, that's the best a fighter can do? Then how is it that the Zhuk ME can detect a patrol boat-sized target at 150 km and a destroyer-sized target at 300 km? This Zhuk model is not even an AESA. It's more than 10 years old pulse-doppler technology:
Please, Log in or Register to view URLs content!


I would like to know where you are getting 1) your radar horizon calculations, and 2) your claims that fighter radars do not have the power to detect targets more than 100 km away. This claim is patently false just on the face of it, since even many old-school radars already had ranges far in excess of 100 km. The pulse-doppler AN/APG-71 of the F-14 for example already had a range of 370 km vs fighter-sized targets. The AN/APG-77 AESA of the F-22 has a range of 400+ km vs a 1 m^2 target.

An AESA radar does not magically extend the range of a certain band. If you have nay doubts look at the various AESA X-band range radars.
AESA is like a multi-core processor it expands the amount of targets you can follow because you have more then one node.
Have you ever seen a AESA radar emitter?
It's the one with the multiple honeycombed shaped wallings. One honey comb is one node. It doesn't extend the distance range of a radar at a certain frequency but it can emit multiple rays within the specified band.

Now if you look into the link you provided, you'll find that the Max Ground Detection Range is specified as 120 kilometer that is the limit of this radar. The column stating Max Surface Detection Range of 300 kilometer is just that a dot in within the screen and it will not be able to give a firing solution or the direction it is moving because of the blur it will see. Basically it's a blip and nothing more.
The plane would need to move into the maximum ground detection range to provide a solution to a missile.

By the way the calculation to find the solution isn't that difficult.

x(m)=3570×√h(m)

That is it.
X is distance H is height in meters.

Another thing, a high mach velocity object doing a hope up maneuver will completely lose sight of the target since the missile will have no time to re-engage the target due to it's velocity to change course once it's radar is facing downwards.
 
... The column stating Max Surface Detection Range of 300 kilometer is just that a dot in within the screen and it will not be able to give a firing solution or the direction it is moving because of the blur it will see. ...
why not to fly in a little bit closer then? :)
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"... The Su-30MKI ... The N011M can function in air-to-air and air-to-land/sea mode simultaneously while being tied into a high-precision laser-inertial or GPS navigation system. ... N011M has a 350 km search range and a maximum 200 km tracking range, and 60 km in the rear hemisphere. ..."
 

Iron Man

Major
Registered Member
The problem with your reasoning is one of logic. You are insisting that because the Chinese have developed the DF-21 therefore they must also have developed a credible ISR for targeting. While both of them might me part of a system of systems, it does not equate to the notion that because one is ready the other must be. Both programs self exist independent of the other. There are no conditions that demand that both must be mutually present. You have to demonstrate mutual coupling of existence and completion.
Actually, that is EXACTLY my reasoning here. You are not going to get much better in this highly classified area. You are left with two scenarios based on deductive reasoning, and asked to choose which is less ridiculous:

1) China has already developed some form of targeting capability for a missile it has both finished developing AND has already deployed.
2) China is unable to develop a targeting capability for a missile it has both finished developing AND has already deployed.

You are basically claiming that a bunch of egghead Chinese engineers did everything ass backwards and developed and fielded a missile they were not sure they could actually shoot at anything. You literally HAVE to make this conclusion to take the stance that you are taking. For me the very existence and deployment of this missile is sufficient evidence that a networked kill chain is already in place. If that is not enough for you, too bad for you.

You are the one claiming that the Chinese have sat constellation that can provide "real time" targeting information. Whether you extrapolate my figures is irrelevant because you are the one asserting the existence and availability of Chinese sat constellation.
Your reasoning is pretty screwed up here. You're trying to conflate different statements into one. First is that there must already be some form of established targeting capability for the DF-21D. Second is my belief that this coverage will eventually be extended to the entire Western Pacific, which is not the same statement as the first. Your claim was that this extended coverage would cost "$1,000 trillion" thereby insinuating economic impossibility, whereupon I demanded to see this article, whereupon you promptly flaked.

Btw, the link you provided basically reported the launch and general description which in my view are irrelevant to the subject of the conversation. Please point out to me from the article that describes its ISR capabilities to generate "real time' targeting information as you claim.
Changing the goalposts again, I see. I was responding to "If you think the Long March 11 series can do the job, I would like to see something more substantive than a claim" by providing you with a link that demonstrates the common knowledge that LM-11 is a rapid-reaction launch rocket, and now you say it's irrelevant. Good job LOL

I am just responding based on your comments. You have the liberty to set the scope of your scenario that you wish to discuss. If you want your starting point to be "that the Flanker force knew where the carrier was, had already penetrated CAP, and was in position to launch the YJ-12", I am not sure what else is there to discuss besides whether the carrier sank or not.
What are you even talking about at this point? Did you even read the original article that started this discussion? Please go read it and then trace the evolution of the conversation from there instead of jumping right into the middle and start making unfounded accusations.

I don't really care what wolfboy said because my conversation is with you and not with wolfboy.
Nice try deflecting my point, which is that CAP has never been ignored by me personally.

In radar, there is a major difference between detection and targeting. Detection is a function of probability. Russians tend to use 50 % probability and declare victory. Western radar designers typically use 70 to 80 % probability threshold. Also detection claims are based on maximum range and under ideal conditions. Due to dwell time and search conditions, normal detection are usually half of maximum as a rule of thumb. Target tracks by definition requires three successive detection and as a result tends to be 70 % of normalised detection range. All these are rule of thumb adjustments because there are a lot of BS out there over detection range. Therefore, the 300 kms detection becomes 150 kms detection normalised and 105 km for targeting. This is even before jamming is applied.
Sure, sure. Let's an article describing all this.

An AESA radar does not magically extend the range of a certain band. If you have nay doubts look at the various AESA X-band range radars.
AESA is like a multi-core processor it expands the amount of targets you can follow because you have more then one node.
Have you ever seen a AESA radar emitter?
It's the one with the multiple honeycombed shaped wallings. One honey comb is one node. It doesn't extend the distance range of a radar at a certain frequency but it can emit multiple rays within the specified band.

Now if you look into the link you provided, you'll find that the Max Ground Detection Range is specified as 120 kilometer that is the limit of this radar. The column stating Max Surface Detection Range of 300 kilometer is just that a dot in within the screen and it will not be able to give a firing solution or the direction it is moving because of the blur it will see. Basically it's a blip and nothing more.
The plane would need to move into the maximum ground detection range to provide a solution to a missile.

By the way the calculation to find the solution isn't that difficult.

x(m)=3570×√h(m)

That is it.
X is distance H is height in meters.
It sounds suspiciously here that you are making this stuff up as you go. So "max ground detection range" is actually "max surface tracking range" according to you. Why? Because max ground detection range happens to be close to the 100 km max range you try to sell us before? Your explanation of the terms in that article make absolutely no sense. I would still like to see your radar horizon calculator that you tried to pass off to us in your earlier post, by the way.

Another thing, a high mach velocity object doing a hope up maneuver will completely lose sight of the target since the missile will have no time to re-engage the target due to it's velocity to change course once it's radar is facing downwards.
That's just your personal opinion. Thanks, but we've all got one.
 
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