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China Freaked Out: A U.S. Navy Seawolf Submarine Was in the South China Sea

Seawolf-Class Submarine
The Seawolf-class fast-attack submarine USS Connecticut (SSN 22) transits the Pacific Ocean during Annual Exercise (ANNUALEX 21G). ANNUALEX is a yearly bilateral exercise with the U.S. Navy and the Japan Maritime Self-Defense Force. (U.S. Navy photo by Mass Communication Specialist Seaman Adam K. Thomas/Released)

We know the American Seawolf-class of fast-attack subs is operating in East Asia due to various media reports this month of an accidental collision with an “unknown object” that injured 11-sailors on the USS Connecticut. The navy is downplaying the incident in the South China Sea by stating that there were no major damages to the sub, and it is still operating normally. Injuries to the sailors are considered minor with no known hospitalizations.

The Seawolf boats are noteworthy for many reasons, but one thing is clear: the U.S. Navy does not have enough of them.

There are three Seawolf-class fast-attack boats in service, the first of which was commissioned in 1997: the USS Seawolf, the afore-mentioned USS Connecticut, and the USS Jimmy Carter. The subs were supposed to take over for the older Los Angeles-class with improvements across the board. Cost overruns and delays limited the number built, originally the goal was 29 new boats. But they are still considered some of the best subs in the world.

Many Advantages of the Seawolf-class

The nuclear-powered Seawolf-class subs were built with improved hulls allowing them to dive deeper (2,000 feet) than the LA-class. The Seawolf-class can go a speedy 35 knots submerged. The class has improved sonar systems, including a bigger sonar array, a wide aperture array (WAA), and the latest towed-array sonar. The weapons control system is also advanced. The subs are quieter than the LA-class and they can operate close to shore. So that means inserting SEALs and using underwater drones. The Jimmy Carter can carry up to 50 SEALs.

The Seawolf-class can launch Tomahawk cruise missiles, although it does not use ballistic missiles as there are no vertical-launch systems. There are eight torpedo tubes and plenty of room to carry weapons. Storage is ample enough to hold up to 50 Tomahawks.

The Chinese Can’t Take It

The Chinese were screaming mad about the latest incident with the Connecticut. They said the U.S. Navy was not transparent and demanded to know the location of the sub and what it was actually doing. The Americans, they claimed, were not forthcoming. This is interesting because it means the Connecticut was unobserved by the Chinese in the South China Sea, so it’s able to sneak around on patrol and shadow the Chinese navy unabated. This could mean the other Seawolf subs are also deployed to East Asia. If that’s the case, American “boomer” – nuclear weapon equipped subs are probably operating in the South China Sea too – were perhaps escorted by the Seawolf-class.

However, the incident of the Connecticut’s undersea collision is concerning. All of this could mean the Seawolf-class could be susceptible to sea mines when it operates in littoral areas to insert SEAL teams. Chinese naval strategists are looking to the Russians for lessons-learned in sea mine warfare. They also could conceivably someday lay sea mines around the various rocks and reefs the Chinese are militarizing. Hopefully, the navy is doing a full investigation into the Connecticut’s accident and will chalk this up to lessons learned while operating in the South China Sea.

1945’s new Defense and National Security Editor, Brent M. Eastwood, PhD, is the author of Humans, Machines, and Data: Future Trends in Warfare. He is an Emerging Threats expert and former U.S. Army Infantry officer.

Written By

Now serving as 1945s New Defense and National Security Editor, Brent M. Eastwood, PhD, is the author of Humans, Machines, and Data: Future Trends in Warfare. He is an Emerging Threats expert and former U.S. Army Infantry officer.



  1. Texan1111

    October 30, 2021 at 12:46 pm

    This is concerning, but if Seal Team 6 was on board? Or any of them hurt when they collided with the Chinese submarine? They are lucky they did not sink

  2. Quartermaster

    October 30, 2021 at 1:11 pm

    Texan, we don’t know what Connecticut hit. There are many rumors floating around, but rumors are all they are.

  3. #FarEastRunner

    October 30, 2021 at 2:19 pm

    Surprised that you would make such a statement about U.S. striking a Chinese sub ?? Scuttlebutt…
    Freedom of press/thought dictates a modicum of truth be in place..
    The Chinese were caught unaware in their own backyard.
    The Taiwan Strait and Taiwan itself is next up to the plate for discourse.

  4. Morskoj Volk

    October 30, 2021 at 3:35 pm

    SSBNs (Boomers) would absolutely not be operating in the South China Sea, they wouldn’t need to. Their missiles have the range to strike anywhere in China from the middle of the Pacific Ocean. They would never operate in contested or restricted whaterways.

  5. Raymond Appenzeller

    October 30, 2021 at 4:25 pm

    We meaning the US Navy needs to dominate the South China Sea and have China and Russia in check. Orherwise we are at peril.

  6. Greg

    October 30, 2021 at 5:08 pm

    China has a bigger navy and the China Sea is in their backyard. There’s no way that the US will dominate.

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