Pump-jet propulsor on the Chinese 093B nuclear attack submarine.
Pump-jet is a very important technology for nuclear submarines.
It drastically increase the spin speed of the propellers before the onset of cavitation noise, meaning subs with pump-jet can go faster more quietly
Pump-jet is a very important technology for nuclear submarines.
It drastically increase the spin speed of the propellers before the onset of cavitation noise, meaning subs with pump-jet can go faster more quietly
Cavitation noise are caused by the bubbles that appears when propellers spins at high speed
When the bubble pops, it creates a fair bit of noise
When the bubble pops, it creates a fair bit of noise
It might be a little frustrating for PLA supporters, that out nuclear sub developments are slower than other parts of the Navy.
The fact is, it's not entirely technology related, rather quite a bit of it, is geography related
The fact is, it's not entirely technology related, rather quite a bit of it, is geography related
The seas surrounding China is very shallow (picture above)
Much of the East China sea besides China's heartland is less than 100 meters deep, large nuclear subs can't operate here.
Much of the East China sea besides China's heartland is less than 100 meters deep, large nuclear subs can't operate here.
South China Sea has some deep areas, but to access open ocean, one must pass through the limited numbers of chokepoints.
Which is why Taiwan is so important, because a submarine base on Taiwan's Eastern coast can give the PLA subs direct access to the Pacific while submerged
Which is why Taiwan is so important, because a submarine base on Taiwan's Eastern coast can give the PLA subs direct access to the Pacific while submerged
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