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UkroTurk

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China is developing a warship of naval theorists’ dreams
An arsenal ship that can be submerged in water
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Based on the real-time information, a submerged arsenal ship in naval warfare would bring the following capabilities:

- Massive missile platform: An arsenal ship is designed to have a large number of vertical launch bays for mid-sized missiles. This allows for a significant firepower advantage in naval warfare.

- Stealth operations: The submerged arsenal ship would have most of its hull inherently submerged, making it ideal for stealth operations. This would enhance its ability to approach enemy targets undetected.

- High automation: The arsenal ship is expected to be highly automated, potentially requiring a small crew of around 25. This would reduce manpower requirements and increase operational efficiency.

- Remote missile and fire support magazine: The arsenal ship would serve as a remote missile and fire support magazine, providing a centralized platform for missile storage and launch capabilities.

- Distributed offensive capabilities: The arsenal ship would play a key role in a future fleet where offensive capabilities are distributed among various ships. This would enhance the overall effectiveness and flexibility of naval operations.

Please note that the capabilities mentioned above are based on the concept of an arsenal ship and may vary depending on the specific design and implementation by China.

But


Submarines are designed to operate in both surfaced and submerged conditions, but their ability to withstand rough sea conditions is limited when compared to surface ships. While submarines can survive and operate on the surface in various sea conditions, there are certain limitations to consider:

1. Sea State: Sea state refers to the condition of the sea, including wave height, period, and direction. Submarines are generally designed to handle sea states up to a certain limit, typically around Sea State 5 or 6, which corresponds to wave heights of approximately 8 to 13 feet (2.5 to 4 meters). Beyond these limits, the safety and stability of a surfaced submarine could be compromised, making it more vulnerable to damage.

2. Freeboard: Freeboard is the distance between the waterline and the main deck of a vessel. Submarines have relatively low freeboard, meaning they sit closer to the waterline compared to surface ships. This makes them more susceptible to taking on water and being affected by rough seas, especially if waves wash over the deck.

3. Hull Design: Submarines have streamlined hull designs optimized for underwater operations, which may not be as effective in handling rough seas on the surface. The shape of the hull and its hydrodynamic properties are primarily designed for submerged performance, and the vessel may experience increased resistance and reduced stability when operating on the surface in rough conditions.

4. Sail Exposure: The sail is the raised structure on the submarine that houses various sensors, periscopes, and masts. When a submarine is surfaced, the sail is exposed to the elements, including wind, waves, and spray. In rough sea conditions, the sail can be subjected to significant forces, potentially impacting stability and safety.

It's important to note that submarines are typically designed to avoid rough sea conditions whenever possible. They are equipped with the capability to submerge and operate underwater, where they are better protected from the effects of rough seas. Surfacing is usually done for specific reasons such as communication, periscope observations, or snorkeling to recharge batteries, but submarines generally aim to spend the majority of their time submerged.

If a submarine encounters exceptionally rough sea conditions while surfaced, it may seek shelter or adjust its course to minimize the impact of the waves. However, prolonged exposure to severe or extreme sea conditions could pose risks to the submarine's safety, stability, and operational capabilities.
 
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The new Chinese aircraft carrier Fujian type 003 went to sea and began its first sea trials. Fujian Type 003 is China's third aircraft carrier and the first designed and built by China. Construction of the 4th aircraft carrier has already begun. Unlike previous aircraft carriers, the ship is equipped with three electromagnetic catapults to launch aircraft. The Fujian aircraft carrier has a length of 316 meters and a displacement of about 80,000 tons, the power plant with a capacity of 220,000 hp is equipped with steam turbines and has 8 boilers. The ship will presumably carry 50 J-15 aircraft, possibly fifth-generation J-31 fighters as well as UAVs. Upon completion of the test, the formation of the third Chinese aircraft carrier group, consisting of Type 55 destroyers and Type 54 frigates, will begin.

 

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US authorities: China's newest nuclear-powered submarine sank earlier this year​

In the spring, a Chinese nuclear-powered submarine sank – this is revealed by new satellite images from US authorities. China itself says that the incident did not take place.

Satellite image of the shipyard in Wuhan where the submarine sank. Photo: Planet Labs INC/Reuters/Ritzau Scanpix

Satellite image of the shipyard in Wuhan where the submarine sank.
Photo: Planet Labs INC/Reuters/Ritzau Scanpix


Friday 27 September 2024, at 10.11


China's brand new nuclear-powered submarine sank this spring, and China's navy tried to cover up the loss of the submarine.
This is what it now sounds like from the US defense authorities. The Wall Street Journal writes that .

According to the US authorities, it is a major setback for China's high-priority weapons program. China is in the process of expanding its fleet to also include nuclear-powered submarines. That is, submarines that sail on a nuclear reactor.

The incident is said to have taken place at a shipyard near Wuhan in China in late May or early June this year.
It was all discovered via satellite images – despite the efforts of the country's communist authorities to hide it, writes The Guardian .

"Not surprising"​

Several experts and US authorities have responded to the incident.

"It is not surprising that the People's Liberation Army (China's military, ed. ) navy would try to hide the fact that their new first-class nuclear-powered attack submarine sank at the dock," a senior US military official told The Wall Street Journal.

A former submarine officer, Thomas Shugart of the Center for a New American Security (CNAS), tells The Wall Street Journal:
"Can you imagine an American nuclear submarine sinking in San Diego and the government covering it up and not telling anyone about it? I mean: Stop it!'

Satellite image from the shipyard in Wuhan, where the submarine sank. Photo: Planet Labs INC/Reuters/Ritzau Scanpix

Satellite image of the shipyard in Wuhan where the submarine sank.
Photo: Planet Labs INC/Reuters/Ritzau Scanpix.

Thomas Shugart believes that it raises a number of questions about China's military situation and about the country's responsibility in relation to its weapons. However, he is also not surprised that the Chinese military has tried to cover up the incident.

US authorities do not know whether the submarine had nuclear fuel on board when it sank, but experts interviewed by The Wall Street Journal believe it most likely did.

It is also not known whether the Chinese authorities have tested the waters where the submarine sank for radioactivity.

The Chinese military has not commented on the incident. A spokesman for the Chinese embassy in Washington says to Reuters.

"We are not aware of the situation mentioned and cannot provide further information at the moment."
 

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