When you’ve gotta go, you’ve gotta go. Even when you’re 200 feet underwater.
But 76 years ago, answering nature’s call actually sent a submarine to the bottom of the ocean.
When you’ve gotta go, you’ve gotta go. Even when you’re 200 feet underwater.
But 76 years ago, answering nature’s call actually sent a submarine to the bottom of the ocean.
Rescuers scouring the Bali Sea for a stricken Indonesian submarine with 53 sailors aboard are hoping the crew could still be alive, but as the hours since the vessel’s disappearance tick by, the chances of survival grow increasingly slim.
The Indonesian navy chief of staff, Adm. Yudo Margono, told reporters Thursday that a search of the vicinity where the diesel-powered KRI Nanggala 402 is believed to have gone down, about 60 miles north of the resort island of Bali, had located an object with “high magnetic force” floating at a depth of 50 to 100 meters (about 165 to 330 feet). “We hope it is the KRI Nanggala,” he said.
But the navy had said previously that it believes the submarine may have sunk in a particularly deep spot in the otherwise relatively shallow sea — about 600-700 meters (2,000-2,300 feet) down — much deeper than the boat’s maximum operating depth and likely below its crush depth.
Even in a best case scenario, the navy chief of staff emphasized that with oxygen expected to run out early Saturday a quick rescue would be critical. “Hopefully we can rescue them before the oxygen has run out,” he said.
The KRI Nanggala was conducting a weapons training exercise early Wednesday when the navy said the sub was given permission to dive and then never made radio contact again.
Earlier, rescuers reported finding an oil slick on the surface and the smell of diesel fuel, but there was no way of knowing whether it came from the sub. While an oil slick might be a sign that the vessel was destroyed, the navy said it could simply mean that the submarine’s fuel tank had been damaged. It could even be a deliberate signal from the crew.
Indonesian President Joko Widodo said Thursday that he had ordered an “optimal” search for the submarine and that the rescue of its crew was the “main priority.” He expressed sympathy with family members over their ordeal.
The German-built submarine has been in service since the early 1980s. Despite its age, a refit of the vessel by South Korea’s Daewoo Shipbuilding and Marine Engineering was completed in 2012. A Daewoo official told The Associated Press that the company had upgraded the boat’s internal structures and systems.
Speaking to reporters, the navy chief of staff said the submarine had “received a letter of feasibility from the navy” and that “it was ready for battle.”
Navy spokesman Julius Widjojono told Indonesia’s KompasTV earlier that the boat could sustain a depth of 250-500 meters (about 820-1,640 feet). “Anything more than that can be pretty fatal, dangerous,” he said.
A Daewoo Shipbuilding official, Ahn Guk-hyeon, told the AP that the submarine would collapse if it goes deeper than about 200 meters (about 655 feet).
If the vessel is intact, it could be too deep for a rescue, said Frank Owen, secretary of the Submarine Institute of Australia.
“Most rescue systems are really only rated to about 600 meters (1,969 feet),” he told the AP. “They can go deeper than that because they will have a safety margin built into the design, but the pumps and other systems that are associated with that may not have the capacity to operate. So they can survive at that depth, but not necessarily operate.”
He said the Indonesian sub was not fitted with a special hatch seal that would allow the crew to escape into a different vessel during an underwater rescue.
“So the only system they have is to get to the surface and abandon the submarine on the surface; or if they’re in water that is less than 180 metres [590 feet] in depth they could put a special suit on so they can breathe and not burst their lungs and they can get to the surface,” Owen told The Sydney Morning Herald.
“It’s still risky but it’s doable,” Owen said.
The Indonesian military said Thursday that at least 20 navy ships, two submarines and five aircraft have been searching the area and that a hydro-oceanographic survey ship equipped with underwater detection equipment was also on its way to the area of the oil slick.
Australia, South Korea, the United States, Germany, France, Russia, India and Turkey have all offered to assist in the search for the submarine and a possible rescue, the Indonesian navy said.
Vessels from Singapore and Malaysia are also reportedly joining in the search but won’t be able to reach the area until the weekend.
March 25, 2021
Contract Awards, News
USS Columbus submarine
Huntington Ingalls Industries (NYSE: HII) will continue engineered overhaul work on USS Columbus, a nuclear powered fast attack submarine in the U.S. Navy’s Los Angeles class. under the potential $194.5 million contract modification.
HII’s Newport News Shipbuilding division in Virginia will receive nearly $191 million at the time of award for continued efforts toward completing the fiscal 2018 project for SSN 762, the Department of Defense said Wednesday.
The company initially secured a $288.6 million in August 2015 to help the branch plan modernization of the undersea vessel and received a $136 million modification in November 2019 for repair, upgrade and maintenance services.
Noble Supply and Logistics has acquired Tactical and Survival Specialties, a special operations equipment provider …
The Department of the Interior is giving vendors until April 9 to submit offers for …
Indian Navy’s third stealth Scorpene class submarine INS Karanj commissioned yesterday – From the old to the new Economic Times
Virtual assistants such as Apple’s Siri or Amazon’s
So why not a virtual assistant to help the U.S. Navy find Russian and Chinese submarines?
The Navy wants a virtual assistant — like the ones found on consumer smartphones — to help overloaded sonar operators manage multiple anti-submarine warfare (ASW) systems. In particular, active sonar on Navy cruisers and destroyers come with a variety of settings. “This includes employment decisions such as changing the operational mode between pulsed active sonar (PAS) and continuous active sonar (CAS) as well as changing waveform and various other system settings,” according to the Navy research solicitation. “Operators must conduct sonar analysis of resulting sonar returns and interpret them based on the sonar settings and the environment.”
This is where a Siri-like assistant would come in handy. The AI would use sensor data and monitoring of environmental conditions to recommend optimum sonar employment, and to assess potential moves of the enemy sub. The system would provide sonar operators with “situational awareness regarding key parameters such as primary propagation path(s), bearing-dependent complications (such as sea mounts that might obscure threats), significant topology features into which a threat might retreat to minimize detection, best tactical waveforms, and situational best practices to enable operators to maximize the potential of the tactical sonar suite for the specific conditions present at that time and location.”
The Navy is hoping to see at least a 25 percent gain in active sonar efficiency by employing a virtual assistant.
Phase I of the project calls for developing an AI architecture and algorithms. Phase II calls for testing the virtual assistant on the hull-mounted sonar fitted to Navy cruisers and destroyers, as well as the Variable Depth Sonar on Littoral Combat Ships.
Submarines have been long been the nemesis of the U.S. Navy, whose carrier battlegroups can dominate the surface – but are vulnerable to subs armed with sophisticated missiles and torpedoes. In addition to Russian and Chinese nuclear-powered attack submarines, even smaller powers like Iran and North Korea may eventually field a new generation of ultra-quiet diesel-powered attack subs. This will place an even greater strain on the ASW capabilities of a U.S. Navy surface fleet already undermanned and overworked.
The deeper question is whether military technology is becoming so complex that a virtual assistant has become a necessity. Pentagon research agency DARPA, for example, is working on AI battle command assistants to help human commanders.
As always, the benefits of advanced technology must be weighed against the challenges that humans face in mastering it. A Siri-like AI assistant can help.
Too Hot To Handle? Why The U.S. Navy Wants An Air-Cooled Laser Weapon
Robot Tanks Are Awesome. But Are They Too Expensive To Risk In Combat?
The U.S. Navy is moving quickly to build two new undersea large drone prototypes to launch from a submarine, surveil the undersea, locate enemy mines, subs, and surface ships, and coordinate targeting for torpedo attacks.
Naval Sea Systems Command just released a request to industry to submit proposals to build two prototype Large Displacement Unmanned Undersea Vehicles (LDUUV) to begin construction next year. The LDUUV program is intended to complement a sweeping broader scale Navy unmanned system effort intended to deliver as many as twenty-one new large drone boats within just the next five years. The LDUUVs could be launched from submarine missile tubes to engage in long-dwell undersea reconnaissance missions and use various kinds of data gathering and transmission technologies to inform submarine commanders of relevant combat information.
A December 2020 Congressional Research Service report, called “Navy Large Unmanned Surface and Undersea Vehicles,” cites the LDUUV program as one of a number of high-profile undersea vehicle prototype programs likely to transform the undersea domain.
“UVs are one of several new capabilities—along with directed-energy weapons, hypersonic weapons, artificial intelligence, and cyber capabilities—that the Navy says it is pursuing to meet emerging military challenges, particularly from China. 2 UVs can be equipped with sensors, weapons, or other payloads, and can be operated remotely, semi-autonomously, or (with technological advancements) autonomously,” the report states.
As computer algorithms continue to become more advanced, undersea platforms such as the LDUUV can increase levels of autonomy, thereby expanding mission scope and adding new abilities to respond to emerging circumstances and make adjustments while performing operations.
For example, AI-enabled algorithms could help an undersea drone identify specific classes of mines, enemy ships or submarines by bouncing new incoming sensor images off of a vast database to perform analyses, make discernments and offer optimal courses of action for submarine commanders to consider. Payloads can be sonar detection systems or other kinds of undersea reconnaissance and weapons applications.
“The LDUUV will achieve full integration with Modernized Dry Deck Shelter and Payload Handling System-equipped submarines. Initial vehicles will be designed to support Intelligence Preparation of the Operating Environment missions,” a NAVSEA report states.
The Navy is acquiring the new drone, called Snakehead, on an expedited, massively fast-tracked basis to meet pressing, even urgent, needs for long-dwell undersea surveillance. A Snakehead could, for instance, conduct much longer reconnaissance missions in high-threat areas near enemy coastline without needing to return a manned crew.
“Snakehead is a long-endurance, multi-mission UUV, deployed from submarine large open interfaces, with the capability to deploy reconfigurable payloads. It is the largest UUV intended for hosting and deployment from submarines, and has been designated a Maritime Accelerated Acquisition,” the NAVSEA report states.
The NAVSEA solicitation reports the service intends to award a deal to a single contractor to build two LDUUV prototypes next year.
Kris Osborn is the defense editor for the National Interest. Osborn previously served at the Pentagon as a Highly Qualified Expert with the Office of the Assistant Secretary of the Army—Acquisition, Logistics & Technology. Osborn has also worked as an anchor and on-air military specialist at national TV networks. He has appeared as a guest military expert on Fox News, MSNBC, The Military Channel, and The History Channel. He also has a Masters Degree in Comparative Literature from Columbia University.
New Delhi: Arighat, the second of the indigenous Arihant class nuclear-powered ballistic missile carrying submarine (SSBN), is in the final stages of sea trials and will be commissioned early next year, ThePrint has learnt.
Sources in the defence and security establishment said the submarine has performed well during the sea trials so far, and added that the commissioning of the vessel was delayed due to the coronavirus pandemic.
“It should be done (commissioned) early next year,” a source said.
The Arighat was quietly launched in November 2017 by the then Defence Minister Nirmala Sitharaman.
With Arighat in, India will be operating two SSBNs that are equipped with the 750 KM range K-15 submarine-launched ballistic missile, meant for punitive retaliatory strikes in case of a nuclear attack.
Both INS Arihant, which is on operational deployment, and the Arighat have the capacity to carry four missiles each.
Also read: India test fires K-4, a 3,500 km nuclear-capable missile meant for Arihant submarine
While the original plan was to have four Arihant class submarines, it was changed by the UPA government, sources in the know said.
Now, the two Arihant class submarines will have a displacement of 6,000 tonnes while two other SSBNs will be of a larger size (7,000 tonnes displacement).
A key differentiating factor will be that the two larger vessels under construction — S4 and S4* at the Ship Building Centre in Visakhapatnam — will have eight missile tubes instead of four.
India currently also operates a nuclear-powered attack submarine (SSN) INS Chakra II, which is under lease from Russia.
It was in March last year that India and Russia signed a US$3 billion deal for the lease of a third SSN — Chakra III — that is likely to be in Indian waters by 2025 at the earliest.
Russian submarines are being leased to train crews for India’s own fleet of SSBNs.
In 2015, the Narendra Modi government gave the green light to build six indigenous SSNs. About two years later, in 2017, then Navy chief Admiral Sunil Lanba had confirmed that work on the SSNs had started.
Also read: PM Modi has spoken. With INS Arihant, India is no longer a reluctant nuclear power
It was in November 2018 that India completed its nuclear triad when PM Modi announced to the world the completion of the first deterrence patrol by Arihant.
With that, India joined an elite group of countries that have the capability to launch a nuclear weapon from land, air and underwater. The only other countries capable of this are the US, Russia, China and France.
INS Arihant was commissioned in 2016 by then defence minister Manohar Parrikar, but a formal announcement came only two years later.
Also read: What is the nuclear triad that INS Arihant has helped India complete?
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(CNN) — Stepping off a yacht and diving to the depths of the ocean in a transparent submarine might sound like an elaborate scene from a James Bond movie.
But thanks to new technological advances, such underwater adventures are now very much a possibility in the real world, provided you have millions to spare.
Described as “a salon under the sea,” Triton 3300/6 features the world’s largest transparent, spherical passenger compartment, which has a diameter of 2.5 meters, providing an immersive underwater view for those on board.
The $5.5million vessel’s interior space is “commensurate with the cabin of a six-passenger Cessna Citation CJ2 private jet” and its Tiffany blue exterior — specially requested by its owner — “appears to disappear” once underwater.
Triton 3300/6 features the world’s largest transparent, spherical passenger compartment.
The air-conditioned sub has a top speed of three knots and enough air and battery for undersea excursions lasting more than 10 hours.
While it took two-years to build, Patrick Lahey, president of Triton Submarines says it’s taken a decade to get to a point where it was possible to build a sphere of this scale.
“It’s a very exciting development, because we’ve now proven that we can produce vehicles that will carry six people to a 1,000 meters,” he adds.
“But we’re not stopping there. We’re working on a vehicle that will carry three people to 7,500 feet and we’re continuing with a vehicle that will dive to 4,000 meters and carry two people in an even thicker haul. So it’s an exciting time that we’re living in.”
Demand for submersibles has grown considerably over the years, with more and more mega-yacht owners seeking out the vessels as a means of entertaining family and friends while at sea.
“The conversation has changed,” he explains. “When we first came onto the scene 15 years ago, the idea of a submersible on a yacht was almost ridiculed.
“People didn’t think it was a good idea at all, largely because their perception of what a submersible was was wrong. They thought it’d be complicated, unreliable and scary.”
According to Lahey, the “early adopters” have proven that subs provide great experiences and are also simple to operate and easy to maintain.
The luxury vessel has a 360-degree window and ‘club class seating’.
“A submersible can dramatically enhance and enrich the ownership of a yacht,” he adds. “There’s now a track record of successes here.”
It’s clear the development of battery-powered subs have made it possible for underwater enthusiasts to experience the ocean in a totally new way, but what separates this form of diving from scuba diving?
“In a submersible you are actually protected from the forces of the ocean by being inside a pressure resistant structure,” explains Lahey.
“As a diver you’re subjected to the forces of the water and the pressure of the water in a way that you aren’t in a sub.
“As a consequence, the limitations in diving are significantly different.
“Even the most experienced technical divers would probably not want to venture below 100 or 120 meters, that would be considered an extraordinarily deep dive.”
He points out that while carrying a tank and climbing down a ladder requires a certain level of physical capability, diving in a submersible “is like sitting in your living room.”
“You don’t have to be like a navy seal to go diving in a sub,” he says, pointing to veteran broadcaster David Attenborough, who was seen diving in a Triton submersible in 2015 nature documentary “Great Barrier Reef with Sir David Attenborough” as an example.
“That’s what makes it such an attractive proposition for yacht owners.”
While this is an encouraging sign, it seems unlikely that those of us who aren’t billionaires will be able to share in the experience any time soon due to the “arduous, time-consuming and very expensive process” involved in building a vessel that’s fully accredited.
“It’s a process that takes a lot of time and requires a lot of work and expense,” Lahey explains.
“But we are absolutely committed to delivering subs that are fully accredited. We don’t build experimental vehicles.”
Triton previously achieved the world record for deepest diving sub with a similar model.
All Triton submarines are hand built using premium-grade “optically-perfect” acrylic to achieve the clearest views.
Most are delivered within a year, but a completely new model that requires development can take up to 24 months.
The company is currently working on orders for both a seven and a nine-seater vessel.
“In a perfect world I’d like to see a sub on every yacht,” Lahey adds.”That’s probably not very realistic. But one of the things that’s clear is that yachts themselves are changing.”
He goes on to explain that designers and naval engineers are now coming up with concepts focused on providing new and exciting experiences for customers, and submersibles have become a much-coveted accessory.
“In the past, it was more about how exotic and luxurious the yachts were,” he explains.
“Not that you can’t have both. But I do think we’re seeing a trend towards vessels with a higher level of utility and better focus on how capable they are and the experiences they can be used for.”
Meanwhile, owners who originally bought their subs for recreational purposes are now using them to complete marine research, a development Lahey says he never saw coming.
“Human-occupied vehicles are really a great way to create advocacy in the ocean,” he adds. “When you dive in a sub it changes your perception of the ocean forever.”
Video: Rescue Of Gigantic $2 Billion US Nuclear Submarines Gets Stuck in Ice
The Los Angeles class fast-attack submarine USS Hartford (SSN 768) surfacing in the Arctic Ocean in support of Ice Exercise (ICEX). ICEX is a five-week exercise that allows the Navy to assess its operational readiness in the Arctic, increase experience in the region, advance understanding of the Arctic environment, and continue to develop relationships with other services, allies and partner organizations.
(U.S. Navy video by Chief Darryl I. Wood/Released)
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