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China Ballistic Missiles and Nuclear Arms Thread
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Rumors said it was a DF-26, or DF-4.
A land based midcourse interception anti-ballistic system. What will it be targeting ? Right off my head, my guess will be :
[1] This system essentially neutralizes any nuclear threat from India.
[2] Missiles coming in from direction of India Ocean.
[3] Missiles coming in from the Pacific Ocean targeting mobile launchers, silos and other facilities in China's interior.
[4] Missiles coming over from the North Pole.
Not a complete list obviously. Anything I missed ?
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Titan 2 and Sineva were permanently fueled using same mixture. Sineva is SLBM, so there's no trick here. If DF-5s were not then it was a materials science issue and they should be now. Simple stainless steel permanently resists UMDH and nitrogen tetroxide. It would only be an issue of fueling if original DF-5 used nitric acid or if they somehow were not using stainless tanks but based on production LM-2s that is no longer the case.
Steel just straight out resists UDMH/N2O4? I thought the tanks had to be fluorinated first.
Does the US has FOBS? Or something like the hypersonic test vehicle tested by China that circled the South Pole last summer?
Stainless 304 and 316 is corroded only if there is a nitric acid impurity in the N2O4.
Pure N2O4 is not corrosive towards stainless at all, as it is both a oxidizer and not an ion source.
UMDH is a weak reducer that cannot reduce Cr oxides, which is what it takes to corrode stainless. It also cannot corrode stainless. In fact hydrazines are also a corrosion inhibitor.
Note that it has to be chromium nickel stainless like 304 or 316, it cannot be regular steel. Stainless used to be expensive, now it is relatively cheap. China is now the largest producer of stainless steel in the world.
China holds latest antiballistic missile technical test, 'proves reliability amid improving technologies'
By Published: Jun 19, 2022 11:54 PM
Medium-range air-defense missile system attached to a missile battalion of an air-defense brigade under the PLA 72nd Group Army fires a surface-to-air missile during a recent round-the-clock air-defense training exercise in northwest China’s Gobi desert.Photo:China Military
China carried out a land-based, mid-course antiballistic missile (ABM) technical test on Sunday, with analysts saying the successful interception proved the reliability of the country's antiballistic missile umbrella at a time when technologies on both ballistic missiles and antiballistic missile interceptors are improving.
Conducted at night within the Chinese border, the test reached its desired objective, China's Ministry of National Defense announced in a press release late on Sunday.
The test is of defensive nature and is not aimed at any country, the Chinese Defense Ministry said.
It marks a consecutive year China has conducted this kind of test. A similar test was held , according to an announcement of the Chinese Defense Ministry at the time.
The latest test brings the tally of publicly announced Chinese land-based ABM technical tests to six. According to media reports and official statements, other known ABM tests were carried out by China in 2010, 2013, 2014, 2018 and 2021. It was not revealed in which interception phase the test in 2014 was carried out, while all other five were carried out in the mid-course phase.
More tests indicate China's antiballistic missile capability is becoming more reliable and such trials contribute to China's national defense and security, and serve as a deterrent against nuclear blackmails, a Chinese military expert who requested anonymity told the Global Times.
The flight of an intercontinental ballistic missile usually consists of three phases. First is the boost phase in which the rocket booster powers the missile into sky. Second, the mid-course phase in which the booster stops as the missile travels outside of the atmosphere. Third and last, the reentry or terminal phase in which the missile reenters the atmosphere and dives on its target.
Intercepting an intercontinental ballistic missile during its mid-course is very challenging because during this phase, the missile, usually equipped with nuclear warheads, travels high outside of the atmosphere at very high velocity, experts said.
It is technically easy to intercept a ballistic missile in the boost phase because the missile is still close to the ground and accelerating, but it is difficult to get close to the launch site which is usually deep in hostile territory. In terminal phase, the interception is also challenging because the speed of the diving missile is very high, analysts mentioned.
Now that countries around the world are developing hypersonic missiles with wave-rider gliders that can adjust their trajectories mid-flight when they reenter the atmosphere, which makes terminal interception even more difficult, mid-course interception has become even more important, analysts remarked.
Agni could still be theoretically intercepted, but once India start deploying MIRVs, things will become a lot more difficult.
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