Tag Archives: ASW

China Threat: More Submarines Than US Navy

Applied Technology Institute (ATICourses) offers a variety of courses on Acoustic & Sonar Engineering as well as Radar, Defense, Missiles and Combat Systems.  The new below would be of interest to our readers.

China is building some “fairly amazing submarines” and now has more diesel- and nuclear-powered vessels than the United States.  China is also expanding the geographic areas of operation for its submarines, and their length of deployment.  For instance, China had carried out three deployments in the Indian Ocean, and had kept vessels out at sea for 95 days.

U.S. military officials in recent months have grown increasingly vocal about China’s military buildup and launched a major push to ensure that U.S. military technology stays ahead of rapid advances by China and Russia.

The quality of China’s submarines is reportedly lower than those built by the United States, but the size of its undersea fleet had now surpassed that of the U.S. fleet. A spokeswoman said the U.S. Navy had 71 commissioned U.S. submarines.  U.S. submarines are built by Huntington Ingalls Industries Inc. and General Dynamics Corp.

In its last annual report to Congress about China’s military and security developments, the Pentagon said China had 77 principal surface combatant ships, more than 60 submarines, 55 large and medium amphibious ships, and about 85 missile-equipped small combatants.

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Probing the Ocean for Submarines. A History of the AN/SQS-26 Long-Range, Echo-Ranging Sonar.

Probing the Ocean for Submarines. A History of the AN/SQS-26 Long-Range, Echo-Ranging Sonar.This is the story of one of the most challenging programs of the Cold War era.  Combining the knowledge and craftsmanship of engineering, naval architecture, ocean science, and operational expertise, the AN/SQS-26 program’s success was a key factor in the U.S. Navy’s quest for ASW superiority.  As with any undertaking of this scale, there needed to be a “hero,” an individual within the organization who had the vision, in-depth knowledge, perseverance, and voice to steer the sonar program through the difficult design, development, testing, and operational employment stages.  That hero was Thaddeus G. Bell at the Naval Underwater Systems Center, New London, CT.

Above was a quote from Rear Admiral (retired) Richard Pittenger , who was also a leader in the field of Navy sonar.

You can purchase the book from Peninsula Publishing.

Peninsula Publishing
26666 Birch Hill Way
Los Altos Hills, CA 94022
(650) 948-2511 phone
(680) 948-5004 fax


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TORPEDOS LOS! -The Efficacy of Submarine Warships.

SUBMARINE TASKING. Pursuant to mission accomplishment in support of national policies, and in particular for a duly delineated national armed-force objective to “Project National Power,” submarines can be tasked to launch land-attack cruise-missiles from international waters– as directed unilaterally by our National Command Authority, NCA.

Submarines can be tasked to conduct surveillance and reconnaissance operations inside and outside the battle space, covertly.  In that same vein, submarines can be tasked to insert, and, or retract Special Operating Forces, SOF, on the littoral shores of the world’s oceans– covertly.

In more poignant warfare scenarios, submarines can be tasked to mine sea-lane choke points as well as enemy harbors.

Moreover, and perhaps most particular, submarines can hunt and kill other opposing submarines in the same undersea medium with them.  Besides the deep ocean, that undersea medium includes the shallow waters for our coastal defense as well as that for projecting US national power by amphibious forces in foreign waters.

Notwithstanding the brassy jingoism above, submarines were first procured to sink threatening warships by surprising them from below the sea with the numbing sting of a torpedo.  For over a hundred years now, submarines have been so tasked; and, since WWI, submarines have been tasked to interdict sea lanes and sink unarmed merchant ships to deny re-supply.  Yes, VIRGINIA, an economic strangler lurks in the seaSubmarines Sink Ships!

When SEAWOLFconceptualized in the painting above—was launched in 1995, there were some 24,000 merchant ships of over 1,000 gross-registered-tons plying the sea lanes of the world for international trade and transport.  For national comparison, a table of Merchant Fleets of the World, ranked by number of oceangoing vessels, is provided below delineating a grand total of their displacements as about 657-million dwt (deadweight tons).

As capital-intensive assets—meaning their annual amortized construction cost and operating expense well exceed the cost of labor to operate them—their collective loan-value, without any consigned cargo, can be estimated parametrically to total about $1.5-trillion.  Moreover, the annualized value of their consigned cargo that they deliver each year can be estimated to total about $3.0-trillion.

Ask yourself which of these national economies today could stay afloat with the sunk cost of its Merchant Fleet?

And today, with near instantaneous news around the world, when the first explosion from a submarine-launched torpedo plumes brusquely, so will ocean-shipping insurance rates.

In regard to fleet operations, submarines can be tasked to provide INDIRECT, ASSOCIATED, and DIRECT Battle Group support.  For deployments, Time-On-Station for modern nuclear-powered submarines is dependent only on the amount of food they must carry to feed their crew—like, a 90-day supply, without replenishment.

Some submarine-patrol stations literally are On the Far Side.  For instance, our forward submarine base on Guam in the western Pacific is about 12 days of submerged steaming from San Diego.  Then for a submerged transit from Guam to a patrol station in the Gulf of Oman via the Java Sea and the Lombok Straits thence across the Indian Ocean could take as long as 16 days.

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