China's new submarine is a terrifying thing.

The South China Morning Post,  SCMP, says that China's new Type 094 submarine can reach 30 knots speed and dive to 400 meters. The real values can be far higher because the PLA might not want to uncover their biggest secrets. And some of the new technology can be made for Chinese ultra-fast torpedoes. So, some rocket solutions are probably made for that new torpedo. 

China has made many advances in the submarine sector. The new Chinese submarines have piezo-electric crystals in their hull that deny the sonar system's ability to see the submarine. The crystal can make a phonon that can divide the sonar pulse and aim that sound energy away from its hull.

Those submarines are equipped with fundamental new propulsion systems. Chinese researchers have also tested new types of magneto-hydrodynamic and hydrodynamic propulsion systems. Those submarines and torpedo systems can create new types of underwater "rocket" engines that don't require propellers. The underwater rocket just pulls water into the chamber, expands it, and then conducts the water flow out from backward. 

There is the possibility to put propellers in the tubes that are closed in a vacuum layer. The vacuum layer in the submarine's hull makes very low noise. And putting propellers in the tube makes them low noise. 

And modern materials like stretchable graphene can be made. The submarine is noiseless. The stretchable or elastic shell that moves when the sonar pulse hits it decreases its echo. The graphene-style network-looking materials where the net cells are asymmetric can decrease echo.

The new propulsion systems. Like super cavitating propellers where side-coming water jets fill the space between the propeller's blades. With an opposite-rotating propeller. Is the system. That can give the submarine incredible speed. Those propellers can be in tubes and a pumping system brings water between them. That makes them low-noise and very effective. 

The side-coming water jets deny the vacuum formation that boils water between the propeller's blades and if the propeller rotates too fast. A cavitation bubble surrounds that bubble and loses its power. Those water jets deny the bubble formation. That makes the submarine more silent at high speeds. 

Above: The new plasma-laser propulsion can make the regular propellers old-fashioned. And that can turn the supersonic stealth submarines into reality. 

And then to underwater ion engines and other exotic systems. 

Things like magneto-hydrodynamic drive (MHD) are the next-generation tools for submarine propulsion. Normally we think that the MHD is the tube where the magnets pull water through it with the magnetic track. The MHD is like a particle accelerator that pulls water through the accelerator tube or between catamaran hulls. 

But, there are other ways to make the MHD. That system includes the ball-shaped structure or the generator's rotor in this ball. The idea is that the ball has positive and negative polarity. The water system pushes water to that ball's equator. The idea is that this system pushes anions and ions in different directions. The system pushes those particles into the front of the engine chamber. And those impacting particles will push the submarine forward. 

There are many ways to make rocket engines for submarines. The chemical systems can use hydrogen peroxide or sulfur acid. That it injects into the reaction chamber. Those chemicals warm or boil water in that chamber. And that reaction pushes the submarine forward. The idea is similar to the rocket. The temperature rise expands water that pushes the submarine or torpedo forward. 

The new laser system creates plasma that pushes the submarine forward.  China claims that this method can make supersonic, stealth submarines real.  

The system can also use microwaves or lasers to boil water in the reaction chamber. The system can directly heat water that it injects in that chamber. Or it can use some particles, like a ball. That heats up. And creates pressure in the rocket chamber.

Or the submarine can use the regular rocket engines. The nuclear reactor creates electricity that divides water molecules. Then the oxygen and hydrogen will conduct in the rocket chamber. And that gives submarines or torpedoes incredible speed. 

https://interestingengineering.com/military/supersonic-submarines-laser-propulsion-china

https://thedebrief.org/china-claims-new-breakthrough-in-laser-propulsion-could-lead-to-ultrafast-stealth-submarines/

 https://www.scmp.com/news/china/military/article/3308686/chinas-military-reveals-details-type-094-nuclear-submarine-first-time

https://www.scmp.com/news/china/science/article/3312861/china-working-ultra-fast-torpedo-powered-ai-submarine-warfare?utm_source=rss_feed

https://www.sustainability-times.com/research/chinas-terrifying-submarine-messaging-leap-lets-commands-travel-375-miles-underwater-igniting-global-military-fears/

https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive