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AUKUS - China's worst nightmare?

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  1. #31

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    Original Post Deleted
    https://twitter.com/i/status/1438251763862212614
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  2. #32

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    Serious question, do we have any idea what sort of nuclear reactors Australia will get for their submarines? For example, from Rolls Royce? And also the number of expected SSNs?


  3. #33

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    Quote Originally Posted by bdw:
    I remember back in 2016, Australia pissed off the Japanese because we were all set to buy Japanese subs and then suddenly the French swooped in. Now forget the French, we are going to the Americans

    https://www.reuters.com/article/us-a...-idUSKCN0XQ1FC

    https://edition.cnn.com/2021/09/15/p...nes/index.html
    Australia, pissing off everybody
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  4. #34

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    Quote Originally Posted by Coolboy:
    Serious question, do we have any idea what sort of nuclear reactors Australia will get for their submarines? For example, from Rolls Royce? And also the number of expected SSNs?
    They don't need them.. But may be they are a good toy to join some big boys club.

    Rolls engines as mentioned earlier.

    I suspect the quantity will depend on the financing arrangements thrown together and if they can really camcell the French contract?!
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  5. #35

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    Quote Originally Posted by shri:
    They don't need them.. But may be they are a good toy to join some big boys club.

    Rolls engines as mentioned earlier.

    I suspect the quantity will depend on the financing arrangements thrown together and if they can really camcell the French contract?!
    At least 8 subs.
    https://www.pm.gov.au/media/australi...anced-security

    Plus a bunch of Tomahawk missiles, missile upgrades to the older F18 and future F35s.

    It's going to be a long time to see delivery, unless it's an off-the-shelf model.
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  6. #36

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    Agree with Hull - this post deserves more than a "like". It made me laugh - twice Very witty!

  7. #37

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    Woof woof

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  8. #38

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    Quote Originally Posted by shri:
    They don't need them.. But may be they are a good toy to join some big boys club.

    Rolls engines as mentioned earlier.

    I suspect the quantity will depend on the financing arrangements thrown together and if they can really camcell the French contract?!
    Rolls Royce....that reminds me, Rolls Royce's Pressurized Water Reactor (PWR) have been used for Royal Navy's nuclear powered subs since the 1960's starting with the Valiant class SSNs. One of the later Valiant class, the Churchill class's HMS Conqueror, sank the Argentine's General Belgrano, a WW2 ex-US Navy cruiser during the 1982 Falklands War, the first time a nuclear powered sub sank another enemy vessel.

    Nuclear marine propulsion's basic principle is essentially not much different from steam turbines used in the late 19th and early 20th century ships. Turbines extract the thermal energy of the steam to produce mechanical power. The main difference is the source of thermal heat to produce the steam that drives the turbines. Instead of boilers in traditional steam propulsion, you got a nuclear reactor acting as the source of heat. A primary circuit of light water, kept in liquid form due to the high pressure, obtains thermal energy from the reactor. This primary circuit then transfer the heat to a secondary circuit steam generator. This steam drives the turbine which in turn spins a driveshaft which goes through a reduction gear and eventually turns the propeller or screw at the back of the submarine.

    The problem with nuclear powered submarines is that this system require pumps to move the water in the primary and secondary circuits. These pumps produce noise which made early nuclear subs easier to detect and noiser than their diesel counterparts. Later generation of Western nuclear subs however, have developed many ingenious quieting engineering solutions to lower this noise. Such as tiles on the external surface of the submarine to absorb internal noise. The Royal Navy also suspended their pumps and water circuits on rafters away from the hull to reduce vibration and noise. The propeller was also made into a pumpjet starting from the Trafalgar class to cut down on the noise further.
    Last edited by Coolboy; 16-09-2021 at 08:34 PM.

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  10. #40

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    Like either Boris or Teresa matter on the world stage... How cute of them to think they are not pawns..
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