China's state media accuses the US of lying about what happened to submarine it says hit an underwater mound in the South China Sea
The Seawolf-class attack submarine USS Connecticut. US Navy
Bill Bostock
Tue, November 2, 2021,
A US submarine hit an underwater object in October, for reasons that were initially a mystery.
The Navy concluded Monday the USS Connecticut hit an uncharted hill beneath the surface.
Chinese state media are not satisfied, and without evidence floated the idea of a nuclear spillage.
Chinese state media are casting doubt on the US account of what happened to a nuclear submarine that collided with an object last month.
US Navy investigators concluded Monday that the nuclear-powered attack submarine USS Connecticut hit an uncharted underwater hill while patrolling in international waters in the South China Sea on October 2.
"The investigation determined USS Connecticut grounded on an uncharted seamount while operating in international waters in the Indo-Pacific region," Cdr. Haley Sims, a 7th Fleet spokesperson, told Insider on Monday.
China claims the South China Sea as its own, and objects to other nations sailing military craft there.
The US rejects Chinese claims to the waters, and makes a point of sailing there in so-called freedom of navigation missions, as do other Western nations, often angering Beijing.
The presence of a US Navy submarine in the South China Sea represents an aggression to Beijing, and Chinese state media were quick to seize on the collision and attack the official US narrative.
On Tuesday, the state-run Global Times newspaper published claims from Chinese military experts who said the collision may have resulted in nuclear leakage that the US is trying to conceal.
"A nuclear leakage could have taken place, and a recent flight of a US nuclear material detection aircraft to the South China Sea shows the US understands the possibility," the Global Times wrote.
A Beijing-based think tank said last week it had satellite evidence showing that US spy planes, including a "nuke sniffer," recently flew over the South China Sea, according to the South China Morning Post.
Experts told the SCMP that the aircraft were likely establishing whether there was any nuclear fallout from the collision.
Zhang Junshe, a senior research fellow at the Naval Research Academy of China's People's Liberation Army, told the Global Times the US justification for the collision "lack sincerity, transparency and professionalism."
Last week the Global Times launched an online petition calling on the US to disclose information about the collision.
Even though the US did then release some information, it appears not to have satisfied the outlet, which often gives voice to aggressively pro-Beijing points of view.
Other outlets also cast doubt on the US version of events.
"Covering up the truth is a tradition of the US military," the People's Daily newspaper wrote Monday, referring to the collision as an "accident" in inverted commas.
The newspaper previously referred to the crash as an "example of the superpower's reckless military presence."
After the Navy first reported the collision on October 7, five days after it happened, Chinese officials accused the US of a cover-up.
Zhao Lijian, the Chinese Ministry of Foreign Affairs spokesman, said on on October 26 that the US was "irresponsible" and "cagey." Zhao added that China had "every reason to question the truth and the intention of the US."
"What was USS Connecticut up to do secretively in the South China Sea this time? What did it collide with? Why did that collision happen?" he said.
"Was there a nuclear leak that creates nuclear contamination in the marine environment?"
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| SEAMOUNT |
Here's how a $3 billion US attack submarine can run into an underwater mountain, according to a former submariner
Ryan Pickrell
Tue, November 2, 2021
The Seawolf-class fast-attack submarine USS Connecticut (SSN 22) at Naval Base Kitsap-Bremerton. US Navy
A US Navy submarine collided with an underwater mountain last month, the service revealed Monday.
The submarine was a $3 billion Seawolf-class submarine, one of the Navy's most capable subs.
A former submariner talked to Insider about how such an advanced submarine could run into something.
It does not happen often, but submarines sometimes run into things beneath the waves. Last month, a US Navy attack submarine collided with something in the South China Sea.
A Navy investigation into the incident concluded that the Seawolf-class nuclear-powered attack submarine USS Connecticut grounded on an uncharted seamount. Defense officials clarified for the Associated Press that the submarine struck an underwater mountain.
The collision caused an unspecified amount of damage and injured a dozen members of the crew.
The Connecticut is one of only three Seawolf-class submarines, some of the most powerful and most capable submarines in the US Navy. Built at a cost of more than $3 billion each, these submarines were built to hunt Soviet submarines in deep waters.
So how exactly does a multi-billion dollar submarine equipped with high-end capabilities crash into an undersea mountain? A former US submariner told Insider about how crews try to manage these risks.
"It's very rare for this to happen," Bryan Clark, a former US Navy submarine warfare officer and defense expert at the Hudson Institute, told Insider. "There's a lot of careful planning that goes into these operations."
"You do that careful planning to figure out what are the best maps or charts that we have of the area, what our plan is for where we're going to operate in terms of depth, what is the risk of there being an uncharted something on the bottom, whether it's a seamount or a pile of containers or something, and how to avoid areas that are likely to have those kinds of hazards," he said.
But sometimes unexpected contingencies force changes in plans, sometimes charts are not as good as they need to be, and sometimes sailors make mistakes.
The South China Sea is a challenging operating environment for submarines because it is very shallow, limiting the depths at which a submarine can safely operate with a low risk of being detected or running into something.
To make things more difficult for submarines, "the charts of a place like the South China Sea may not be nearly as detailed as you want," Clark said.
If a submarine is trying to be quiet and operate undetected, then it would likely be closer to the bottom and not relying on active sonar, which can alert the submarine to any potential dangers, such as naval mines, in its path but will also alert any potential adversaries to its position.
So in that situation, "you don't have anything that's looking forward of you in terms of active sonar," Clark said. "And, of course, you have no visual indication of what's ahead of you."
Submarines have passive sonar, but that only detects things that are making sound. "If you have something ahead of you that doesn't make any noise, like a seamount, you may not know it is there until you run into it," Clark explained.
"You might have your fathometer on, which is what you can use to measure the water depth below the ship. It has got a pretty narrow beam, so it's not as detectable," he said. "But the problem is that it only detects the depth underneath the ship and not forward of the ship."
That bottom-facing sonar could potentially detect inconsistencies in the charts and subtle changes in depth but may not necessarily get a vessel through a blind spot, where an uncharted topographical feature might be rising up sharply from the ocean floor.
"You could have a seamount pop up in front of you before your fathometer has a chance to detect it and you could run into it," Clark said,
He explained that these are challenges submarines face no matter how advanced they are. Submarines try to avoid these dangers by operating high enough in the water column, but sometimes that is not always an option.
It's unclear exactly what happened to the Connecticut, as the command investigation has yet to be released. The investigation has been passed up to the 7th Fleet commander, who will make any relevant accountability decisions. The sub is currently in Guam undergoing initial repairs.
Ryan Pickrell
Tue, November 2, 2021
The Seawolf-class fast-attack submarine USS Connecticut (SSN 22) at Naval Base Kitsap-Bremerton. US Navy
A US Navy submarine collided with an underwater mountain last month, the service revealed Monday.
The submarine was a $3 billion Seawolf-class submarine, one of the Navy's most capable subs.
A former submariner talked to Insider about how such an advanced submarine could run into something.
It does not happen often, but submarines sometimes run into things beneath the waves. Last month, a US Navy attack submarine collided with something in the South China Sea.
A Navy investigation into the incident concluded that the Seawolf-class nuclear-powered attack submarine USS Connecticut grounded on an uncharted seamount. Defense officials clarified for the Associated Press that the submarine struck an underwater mountain.
The collision caused an unspecified amount of damage and injured a dozen members of the crew.
The Connecticut is one of only three Seawolf-class submarines, some of the most powerful and most capable submarines in the US Navy. Built at a cost of more than $3 billion each, these submarines were built to hunt Soviet submarines in deep waters.
So how exactly does a multi-billion dollar submarine equipped with high-end capabilities crash into an undersea mountain? A former US submariner told Insider about how crews try to manage these risks.
"It's very rare for this to happen," Bryan Clark, a former US Navy submarine warfare officer and defense expert at the Hudson Institute, told Insider. "There's a lot of careful planning that goes into these operations."
"You do that careful planning to figure out what are the best maps or charts that we have of the area, what our plan is for where we're going to operate in terms of depth, what is the risk of there being an uncharted something on the bottom, whether it's a seamount or a pile of containers or something, and how to avoid areas that are likely to have those kinds of hazards," he said.
But sometimes unexpected contingencies force changes in plans, sometimes charts are not as good as they need to be, and sometimes sailors make mistakes.
The South China Sea is a challenging operating environment for submarines because it is very shallow, limiting the depths at which a submarine can safely operate with a low risk of being detected or running into something.
To make things more difficult for submarines, "the charts of a place like the South China Sea may not be nearly as detailed as you want," Clark said.
If a submarine is trying to be quiet and operate undetected, then it would likely be closer to the bottom and not relying on active sonar, which can alert the submarine to any potential dangers, such as naval mines, in its path but will also alert any potential adversaries to its position.
So in that situation, "you don't have anything that's looking forward of you in terms of active sonar," Clark said. "And, of course, you have no visual indication of what's ahead of you."
Submarines have passive sonar, but that only detects things that are making sound. "If you have something ahead of you that doesn't make any noise, like a seamount, you may not know it is there until you run into it," Clark explained.
"You might have your fathometer on, which is what you can use to measure the water depth below the ship. It has got a pretty narrow beam, so it's not as detectable," he said. "But the problem is that it only detects the depth underneath the ship and not forward of the ship."
That bottom-facing sonar could potentially detect inconsistencies in the charts and subtle changes in depth but may not necessarily get a vessel through a blind spot, where an uncharted topographical feature might be rising up sharply from the ocean floor.
"You could have a seamount pop up in front of you before your fathometer has a chance to detect it and you could run into it," Clark said,
He explained that these are challenges submarines face no matter how advanced they are. Submarines try to avoid these dangers by operating high enough in the water column, but sometimes that is not always an option.
It's unclear exactly what happened to the Connecticut, as the command investigation has yet to be released. The investigation has been passed up to the 7th Fleet commander, who will make any relevant accountability decisions. The sub is currently in Guam undergoing initial repairs.
THEY ARE COVERING UP BECAUSE IT WAS A KRAKEN
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