Satellite images show Chinese submarine using underground base in SCS's Hainan island

On August 21, rare satellite imry released by American imaging company Planet Labs showed a Chinese nuclear submarine entering a ‘secret underground base’ on Hainan Island in South China Sea. Photo of first-ever spotted rare sight has raised speculations among military watchers. In im, a ballistic Chinese submarine, which appears to be 093 nuclear-powered is seen entering an unkwn tunnel to an underground berth on Yulin Naval Base. A former United States Defense Department official, Drew Thompson, called shot a “rare occurrence”. As per reports, official confirmed that what appeared in im was perhaps a Chinese underground base. He ded that China conceals a lot of its military hardware, from submarines to missile systems based far inland. 

Located on sourn end of Hainan Island almost 300 miles (470 kilometers) southwest of Hong Kong, Yulin Base is one of China's key facilities to protect its military assets. Thompson was reported saying that people’s Republic h a tremendous experience in maintaining underground facilities considering its acute vulnerabilities for coastline attacks. China’s 093 Class of Nuclear Submarines or Shang class is kwn to have six-tube torpedo armament according to military think tanks. tubes on submarine range 533 or 650 millimeters in size that give submarine its wide range, endurance. Both anti-vessel and land-attack missiles can be fired from onboard vertical launch tubes of nuclear submarine. 

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Extremely 'iseless' operation in sea

Earlier, China only h a class of first nuclear-powered submarine, 091, or Han-class, however, Shang-class is kwn for its extremely iseless operation in seas. According to a think tank report, a naval expert H. I. Sutton described ambient sea ise of 093 as 90 decibels that would make submarine almost undetectable due to its low ambient sea ise and its anechoic tiles on submarine’s hull absorbed enemy sonar instantly.

A former director of operations at US Pacific Command's Joint Intelligence Center reportedly said that secret underground facility in South China Sea would make it difficult for or nations to observe China's military operations.

Nations wouldn't be able to crack China's combat reiness and operational response times, he ded. 

China’s underground secret bunker operating se “very vanced” war submarines indicates People’s Liberation Army Navy (PLAN) involvement for its operation in disputed South China Sea, as per some reports. China has also been asserting its sweeping sovereignty claims in strategic South China Sea with belligerence and military muscle power against smaller claimant nations. Recently, Department of Defense assessment of China's military also indicated that modernization of China's submarines remained a high priority for PLAN at Yulin base that stores nuclear powered vanced ballistic missile submarines, as per reports. 

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(Ims Credit: Federation of American Scientists)