Top naval engineer says new propulsion system will put PLA Navy ‘way ahead’ of US
The US Navy’s Pacific fleet used to mock Chinese submarines for being too noisy and too easy to detect, but that has largely been remedied in recent years and China is now on the cusp of taking the lead in a cutting-edge propulsion technology.

Naval experts said the new technology would help China build more elusive submarines, but might also prompt the United States to ramp up anti-submarine warfare measures.
In a recent interview with China Central Television, Rear Admiral Ma Weiming, a leading Chinese naval engineer, showed a component of a new Integrated Electrical Propulsion System (IEPS) for naval warships in a laboratory. He said the system, which turns all the engine’s output into electricity, and a rim-driven pump-jet had been fitted to the People’s Liberation Army Navy’s newest nuclear submarines.

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“This is one of our work team’s first world-leading projects, which has been used on [China’s] next-generation nuclear submarines,” Ma said in May. “[Our technology] is now way ahead of the United States, which has also been developing similar technology.”
Ma’s exalted status in the PLA Navy was highlighted by a photograph of then navy commander Admiral Wu Shengli holding an umbrella for Ma during an inspection of the PLA Naval University of Engineering in Wuhan, where Ma works, on a rainy day in June last year. The photo, posted on the social media website of the PLA’s Navy Magazine, sparked public curiosity about why the commander would give such “preferential treatment” to a rear admiral.
Ma told CCTV “the ultimate goal” of developing the new propulsion system “was aimed at solving the problem of deploying high-energy radio-frequency (HERF) weapons on board”, hinting that China was close to emulating the US in that regard.
HERF, a form of directed-energy weapon, can fire highly focused energy at a target, damaging it accurately and quickly. Directed-energy weapons require vast amount of electricity – something IEPS can deliver – and can counter the threats posed by fast missiles such as ballistic missiles, hypersonic cruise missiles and hypersonic glide vehicles. Besides China, the US, Russia and India are also developing them.
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