China's pirate patrol submarine is too noisy, say naval experts

China's recent deployment of a nuclear submarine for an antipiracy mission in the Gulf of Aden may have caused unease among its neighbours, but naval experts say the Type 091 vessel is unlikely to pose any real threat because of the noise it generates.

The experts say the international community should instead keep an eye on China's quieter, more advanced diesel-driven submarines.

CCTV's military channel last Sunday reported that a nuclear submarine from the People's Liberation Army Navy had completed a two-month escort mission in the pirate-infested waters of the Gulf of Aden, and returned to its base in Qingdao , Shandong province.

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