China Ballistic Missiles and Nuclear Arms Thread

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taxiya

Brigadier
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Yes, but the point i'm making is that we have already see Mach 6 air-to-air missiles which can shoot down AWACS.
So the sensors, mid-course guidance and the terminal manoeuvrability have already been demonstrated .

So how feasible would it be to turn a MaRV or HGV into an air-to-air missile?

Or come to think of it, to deploy a payload containing an actual air-to-air missile.

The economics works out, as an E-2D costs over $100M, whilst a missile should cost around $5M.
True, they may all be travelling at Mach 6. But AA missile is travelling head on, meaning there is very little relative speed in the radar sight. Ballistic missile approaches aircraft (and AC) overhead, the relative moving speed of the target in the radar sight is huge, therefor the challenge.

How feasible? It all depends on the relative moving speed in the radar sight and the computing power plus actuator precision. Maybe HGV has a better chance than MaRV because HGV travels on a flatter course.
 

zaphd

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True, they may all be travelling at Mach 6. But AA missile is travelling head on, meaning there is very little relative speed in the radar sight. Ballistic missile approaches aircraft (and AC) overhead, the relative moving speed of the target in the radar sight is huge, therefor the challenge.

How feasible? It all depends on the relative moving speed in the radar sight and the computing power plus actuator precision. Maybe HGV has a better chance than MaRV because HGV travels on a flatter course.
The approach angle may not be as much of an issue as you think. When I was a wee lad I was row boating out on the lake with my father, an engineer. He asked me to keep a lookout for motor boats and told that when on a collision course, two objects with constant speed will see each other in a constant angle.

A simple case is two objects travelling perpendicularly to each other at the same speed, when they see each other in a 45 degree angle from their motion vector throughout their approach. Other speed ratios will have different angles, e.g. 2 to 1 speed ratio and perpendicular approach and the faster vehicle will see the slower in a 30 degree angle off their nose. Astoundingly, this rule holds true no matter what the incidence angle or speed ratio. This property is what allowed the early Sidewinder missiles to have lead pursuit and track an aimpoint with miniscule processing. The missiles just kept the target at a constant angle, which was measured with spinning mirrors and whatnot.

There are of course many challenges in developing an anti air ballistic missile. Aircraft could divert course, which would necessitate mid course aim point updates, high divert capability or a ridiculously long range seeker.
 
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Hendrik_2000

Lieutenant General
Now did some one said it will take hours from detection to launch because of layer of bureaucracy and the communication lag. Apparently they never heard of joint operation command center. I am pretty sure they also have underground command center . This one is for peace time

Xi Jinping Paid A Visit To His New Command Center
NOVEMBER 7, 2017
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Via Xinhua.

No other Chinese leader has appeared in digital battle dress uniform as much as Xi Jinping. Just two weeks after
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and reshuffling the Central Military Commission (CMC), an office that manages the PLA’s activities, Xi was hobnobbing with his generals again in their headquarters. That would be the nondescript five story building where a “Joint Command Center” is located.

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by state media as the PLA’s “highest operational brain,” the CMC’s command center is packed with offices and a workplace-auditorium setup equipped with interactive maps. Referring to it as “new” is fitting, since it was only launched between 2014 and 2015, when Xi Jinping began reforming the Party’s armed forces. Last week wasn’t his first time in the CMC’s main office though, since Xi’s military visits are part of his work routine.


It might be tempting to assume all of this is just for show, but Xi himself held two video conferences with Chinese soldiers using the CMC’s telecoms network. He first spoke to a border guard unit stationed in the country’s northwest and then addressed troops in Djibouti, where the PLA maintains a small base for guarding the Horn of Africa.

In keeping with his
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in front of the troops, China’s President explained the PLA’s role while at the CMC:

Xi said China is at a crucial stage in its path toward being a world power and is facing a bright future as well as many challenges. Military capabilities are of strategic importance in safeguarding national security, he added.

“My visit this time is to show the Central Military Commission’s distinct orientation of combat readiness,” he said.

“The troops must strengthen the senses of crisis and war, and spare no efforts to improve combat readiness,” he said, ordering the military to prepare itself for emergencies from any direction.

There shouldn’t be any doubt the CMC’s joint command center is fully operational and its purpose seems to be for coordinating the PLA’s movements across the globe. It’s not clear if this means China anticipates fighting a war abroad soon. Here are a few screenshots from a short state media newsclip on Xi’s trip to the Joint Command Center on November 3.

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This is the HQ of the CMC. Its role is somewhat comparable to the American Joint Chiefs of Staff but in the CMC’s case, its unfailing loyalty to Xi Jinping and his goals are its main preoccupation. Via CCTV.

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Notice the map of East and Southeast Asia at the top right. Via CCTV.


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The CMC’s Joint Command Center has two levels. There are also separate conference rooms on either side of the main work area. A row of large interactive screens–seen looming behind the clapping soldiers–provides real time data streaming. Via CCTV.

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This is the view from inside one of the conference rooms. Xi Jinping was given a tour of the command center, with soldiers standing at attention in his presence. Via CCTV.
 

Hendrik_2000

Lieutenant General
Via CCTV.

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Here’s a view of the Joint Command Center from the opposite end of the room, facing its entrances. The far wall supports large maps of Asia. Apparently, Xi Jinping was seated behind a podium underneath the red banner when delivering his remarks. Via CCTV.

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These distinctive red analog phones are found everywhere in the Joint Command Center. They might be the same as the encrypted “red phones” used by high ranking Communist Party officials. But in the CMC, the phones could be for communicating with either the five known PLA theaters in China or the 15 different offices under the CMC. Via CCTV.

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For comparison’s sake, here is Russia’s “National Defence Control Center.”
 

taxiya

Brigadier
Registered Member
The approach angle may not be as much of an issue as you think. When I was a wee lad I was row boating out on the lake with my father, an engineer. He asked me to keep a lookout for motor boats and told that when on a collision course, two objects with constant speed will see each other in a constant angle.

A simple case is two objects travelling perpendicularly to each other at the same speed, when they see each other in a 45 degree angle from their motion vector throughout their approach. Other speed ratios will have different angles, e.g. 2 to 1 speed ratio and perpendicular approach and the faster vehicle will see the slower in a 30 degree angle off their nose. Astoundingly, this rule holds true no matter what the incidence angle or speed ratio. This property is what allowed the early Sidewinder missiles to have lead pursuit and track an aimpoint with miniscule processing. The missiles just kept the target at a constant angle, which was measured with spinning mirrors and whatnot.

There are of course many challenges in developing an anti air ballistic missile. Aircraft could divert course, which would necessitate mid course aim point updates, high divert capability or a ridiculously long range seeker.
It is not an issue if both target and warhead maintain constant vectors regardless the angle, but it is a greater issue for higher initial approaching angel than a lower in case of varying vectors (the maneuvering target), isn't it? The key is that the target's forward speed is always much greater than its sideway maneuvering speed.
 
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