Search This Blog

Wikipedia

Search results

Tuesday, July 8, 2014

Now We Know What the Navy’s Next Submarine Will Look Like

U.S. Navy art
U.S. Navy art



Admiral reveals five possible future sub designs 

by DAVID AXE
 https://medium.com/war-is-boring

For several years now the U.S. Navy has been planning to replace older attack and cruise-missile submarines with an improved version of the cutting-edge Virginia-class undersea boat. And in late October, Adm. David Johnson, the sailing branch’s top sub-builder, finally unveiled the new vessel’s possible configurations during a conference in Virginia.
Options for the so-called “Block V” Virginias range from a nearly 480-foot-long behemoth to a simpler model that’s just 450 feet from bow to stern. But all five proposed designs are longer than today’s standard Virginias, which measure just 380 feet.
And for a good reason. The Block Vs—the Navy wants to build 10 of them between 2019 and 2023—are expected to include a structural plug, known as a “payload module,” inserted in the middle of the standard nuclear-powered Virginia design. The module is meant to accommodate four vertical tubes that open to the water and can be accessed from inside the ship.
These payload tubes could carry sea-launched robots, divers or—most significantly—seven Tomahawk cruise missiles apiece. Combined with the six-round tubes already installed in the bow of a standard Virginia, a fully missile-loaded module would boost a sub’s Tomahawk count to an impressive 40 missiles. Each maneuverable, GPS-guided Tomahawk can fly a thousand miles at low level and hit a target with pinpoint accuracy.
The Navy wants the missile-heavy Block V subs to replace the current fleet of four dedicated cruise-missile submarines. The SSGNs, as they’re known, were modified in the early 2000s from surplus “boomer” boats carrying nuclear-tipped ballistic missiles. Each SSGN packs up to 154 Tomahawks. In 2011 the USS Florida cruise-missile sub fired at least 90 Tomahawks at targets in Libya, clearing the way for follow-on attacks by warplanes.
The SSGNs are all already nearly 30 years old and will retire in the mid-2020s, resulting in a precipitous decline in the Navy’s overall cruise-missile capacity. A force of 10 Block V Virginias would make up for around half of the missile shortfall. Subsequent Block VI and Block VII submarines could restore the other half.
General Dynamics Electric Boat in Connecticut, the Navy’s main submarine-builder, sketched out a basic, 94-foot payload module a few years ago. Last year, amid worsening budget uncertainty, the module options ballooned to five.
The longest three—97, 91 and 88 feet—differ in their precise layout and the number of new bulkhead walls they add to the baseline Virginia design. But they all preserve the sub’s 34-foot-diameter outline, “allow[ing] the platform to perform within key performance parameters,” according to Electric Boat vice president John Holmander
Two shorter and simpler options with 70-foot module plugs include humps on the sub’s hull allowing for slightly taller and therefore more voluminous tubes. But this “turtleback” arrangement comes with “attendant hydrodynamic and potential acoustic problems, especially at the higher speeds,” retired Capt. Karl Hasslinger and John Pavlos wrote in the Navy’s official Undersea Warfare magazine.
It’s costing $500 million just to develop the Block V design. Today’s Virginias cost slightly more than $2 billion apiece to build—and with the Block V module that unit price could rise by hundreds of millions of dollars. Whichever Block V layout the Navy chooses in coming years, it won’t come cheap.
But new submarines are among the sailing branch’s top priorities—and rightly so. Stealthy and heavily armed, undersea boats are by far the most powerful warships for full-scale warfare. With their planned extensions and more missiles, the Block V subs could be the deadliest yet.



The hunt for Red October gets easier. How submarine warfare is changing

Improving technology could make it easier to find submarines. That's a threat to the US fleet – but it's also an opportunity for the Pentagon, a new report says.


Christian Science Monitor

Today's submarines are in danger of becoming increasingly vulnerable as “game changers” in undersea warfare make it easier to detect them, a new report says.
Deep sea submarines have been a key part of the United States military’s offensive and defensive missions for decades, but a significant part of their utility lies in their ability to operate stealthily. To this end, the US military has invested huge amounts of money into making submarines – in particular, the Navy’s Virginia-class nuclear submarines – quieter.
But rapid increases in computer processing power are offsetting these advances. Submarine detection techniques that do not measure sounds but rather the wake left by submarines, for example, have been known for decades. But “they have not been exploitable until very recently because computer processors were too slow to run detailed models needed to see changes in the environment caused by a quiet submarine,” according to a report from the Center for Strategic and Budgetary Assessments (CSBA) released Thursday.
Recommended: What do you know about US women in war? A quiz.
Today, "big data" is providing the capability to run sophisticated oceanographic models in real time, making these detection techniques more feasible. As computer processors shrink, some will soon be small enough to fit on the sea floor. “These systems have the potential to make coastal areas far more hazardous for manned submarines,” the report notes.
What’s more, emerging acoustic techniques will get better. For example, computers could help find submarines by comparing the normal ambient noise from marine life and waves with measured noise, and in this way “identifying where sounds are being reflected off a submarine or obscured by its hull.”
This is both good and bad news for the US military’s undersea warfare programs. The same technologies that make submarines easier to detect could help spur a new generation of technology that the Pentagon could use to its advantage.
For instance, next-generation submarines could fool sonar by emitting special sounds to drown out their own radiated noise, “similar to the method used in noise-canceling headphones,” the report notes. The US Navy could also use unmanned underwater drones to conduct acoustic jamming. 
This points to a brand new realm for the military-industrial complex. “A new family of undersea vehicles and systems will be essential to maintain America’s undersea edge,” the CSBA report argues. Failing to “aggressively exploit” the latent potential of these emerging technologies “could create an opening for rivals,” it warns, “and, in so doing, pose a major threat to US security.”





The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

Four of the U.S. Navy’s gargantuan Ohio-class ballistic missile nuclear submarines, otherwise known as ‘Boomers,’ were converted into multi-role platforms capable of deploying throngs of special forces, spying, sinking ships and other subs and and putting any enemy within 1,000 miles of coast at risk of their arsenal of 154 cruise missiles. 





As you can see in the rare photo above of the USS Michigan (SSGN-727), the re-branded SSGNs are of grand scale, measuring 560 feet long and displacing almost 19,000 tons while submerged. Behind the Michigan’s sail is a modular Dry Dock Shelter, which is about 38 feet long and 9 feet tall. It is used to house SEAL Delivery Vehicles and other transportation devices used by special forces personnel. The SSGNs can be fitted with two of these systems if need be.





The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

Four of the oldest Ohio-class SSBNs were converted to SSGNs over the last decade. The process takes between two and three years to complete, where the submarines have their reactors refueled and extensive modifications are made to their interiors to support their new conventional mission. This includes modifications to accommodate 66 Navy SEALs and their gear, as well as mission planning, command, control, communications and prep areas. Some sources say the the SSGN’s embarked commando manifest can swell to over 100 SEALs for surge operations. 

The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

The ability to launch small unmanned aircraft has been added to the SSGNs. These can provide overwatch and beyond line of sight communications relay with forward deployed special operations forces. An upgraded command and control suite was also added to facilitate these clandestine commando operations. As such, an entire special operations campaign can be ran from the bowels of an SSGN.
The boat’s 24 Trident nuclear ballistic missiles are removed and in their place are 154 BGM-109 Tomahawk cruise missiles, with seven missile per tube. This turns the once doomsday capability of the Ohio-class into the a ‘air war in a box’ capable of sneaking into an enemy’s inner sanctum and letting loose a barrage of cruise missiles targeting command and control, air defense and high-value targets. Basically, the SSGNs have the ability to bypass an enemy’s anti-access/area denial capability and kick down a metaphorical door for follow-on attacks by manned aircraft and other assets. 

The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

Seeing that these were once the holder’s of a large portion of America’s nuclear ‘second strike deterrent,’ the now multi-role boats remain some of the quietest submarines in the world, and as such they can also accommodate some of the roles of a fast attack submarine. These include surveillance, electronic eavesdropping and even anti-surface, anti-submarine and anti-mine warfare, as they retain their forward torpedo tubes. Even a automated launch and recovery system has been designed to fit in one of the SSGN’s missile tubes that it can launch and recover heavy-weight autonomous unmanned vehicles. A capability that opens up a whole new world of possibilities for underseas warfare. 





The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

The Ohio-class SSGNs are possibly America’s most powerful “all in one” conventional weapon systems, packing many times the firepower of the Virginia-class fast attack submarine and capable of supporting sustained special operations campaigns in some of the most inhospitable territory in the world. They put literally any target within 1000 miles of the coastline at risk of a surprise attack and their versatility is amazing. With four boats now in the water, at least two can be on patrol at any given time, with a third being common, and their patrols are only limited to the food stores onboard, allowing them to lie in wait for weeks or even months at a time off hostile shores. 





These boats have also been battle tested. The USS Florida in particular launched at total of 93 Tomahawks during Operation Odyssey Dawn (the campaign to take down Qaddafi in Libya), with 90 of the missiles being successful against their intended targets. Other SSGNs and their crews have received high honors, including the Battle Efficiency Award and the Meritorious Unit Commendation, since being converted over from Boomers. 

The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

Currently, the SSGNs are slated to serve into the next decade, at which time they will be retired in the order in which they were added to the fleet originally. By that time, The USS Ohio will be over 40 years old.
There is no replacement in sight for these awesome machines as the Navy struggles to even replace its 14 newer Ohio-class boats that continue to act in the nuclear attack role. The solution for replacing the SSGNs as it sits now will be for an enlarged Virginia-class, each packing 40 cruise missiles and far less SEALs then their Ohio-class counterparts. Although this may help diffuse some of the Navy’s conventional sub-launched cruise missiles to more boats that can be in more places at any given time, it does not replace the incredible striking or special operations power of the an Ohio-class SSGN.
There is always the chance that the current SSGN fleet will have their lives prolonged again, or that newer Ohio-class boats will be similarly converted when their SSBN replacements are finally available, but this remains highly doubtful. The last boat of the class, The USS Louisiana (SSBN-743) was commissioned in 1997, and by the time it has a replacement it may also be over 40 years old.
Until the last of its kind is de-fueled and scrapped, the ‘second chance’ Ohio-class SSGNs will remain the most flexible, sneaky, survivable and hard hitting conventional weapons and special operations platforms on the planet.




The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

Contact the author at Tyler@jalopnik.com.

 



Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

Developed in the '60s at the height of the Cold War, it remains the fastest of its kind till this very day. Its propulsion system was so powerful that it required an overhaul after a single high-speed mission. It could operate at unrivaled elevations, was ridiculously expensive to operate and its very existence sent the US into a frenzy trying to counter it.
This may perfectly describe the famously brutish MiG-25 Foxbat, but it also describes another Soviet technological marvel of the time period, the more obscure but arguably more impressive Alfa Class interceptor super-submarine. 





From the day of its inception, the top secret Project 705, also know as the Lyra Class in Russia, was designed to be extremely fast and maneuverable. As a result, it drastically pioneered many technological frontiers to get there.
The idea behind Project 705 was that a very fast hunter-killer sub could chase down any surface combatant while also being able to evade almost all anti-submarine weapons fielded by NATO at the time. Although immense speed was the project's primary design goal, the sub also had to be hard to detect while running at lower speeds, especially via active sonar and magnetic anomaly detectors. 

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

Because the project's main design goal, to reach speeds of over 40 knots submerged, was so ambitious, a tighter, smaller hull form was required to achieve it. This small size, displacing only 3,200 tons submerged (as opposed to more than double that for the Victor Class of similar vintage), meant that the crew size had to be dramatically decreased, thus very innovative automation would have to be developed to allow a crew of 31 to do the job that a crew of double, triple, or even quadruple the size would normally be tasked with. Because of these crew size restraints, the Alfas were to be manned by an all officer and warrant officer complement, plucked from the cream of the Russian Navy.
As a result of the small crew and their limited access to sensitive components, no maintenance was to be performed while at sea beyond emergency repairs and the whole boat was ran from a single control room with just eight officers on watch. During tests, the Soviet Navy found that having such a small watch crew all huddled together largely in one room, greatly decreased the reaction time during combat maneuvers. This snappier decision making resulted in enhanced combat effectiveness was a well-matched feature for the Alfa Class's blistering performance. 

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

The Alfa Class had a double hull design, with the inner hull handling the enormous pressures that would be faced by the sub's extreme operating depths (stated at over 2200 feet, with some sources putting its crush-depth at over 3600 feet!), and a lighter outer hull that is optimized for speed, maneuverability and acoustic stealth. For its high strength and low weight, the Alfa's hulls were made out of massive amounts of titanium.
Because titanium was still an exotic metal at the time (the A-12 and SR-71 were groundbreaking in the west for their wide use of the metal, which was bought through a fake shell company from Russia), it is said the US was in doubt that it would be used for this new class. Nearly a decade passed between the class's first test runs and confirmation of the hull metallurgy by western intelligence agencies. It is rumored that titanium shavings from the floor at a St. Petersburg shipyard, where the Alfa Class subs were built, were smuggled out of the country via espionage, thus proving that titanium was indeed the metal that was being used largely in this high-speed class's construction.
None-the-less, shaping and welding huge pieces of titanium for the sub's hull was said to have been a major challenge, and some reports say that the entire construction shed where the Alfa boats were built was filled with inert argon gas and the builders had to put on moon suits while welding her light-weight but super-strong hull together.

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

The submarine's inner pressure hull was separated into six main compartments, of which only one was habitable for the crew's for daily use, the rest being packed with weapons, sensors, nuclear propulsion and other machinery. Although this greatly hampered livability aboard the relatively small, 267 foot nuclear submarine, it allowed the command and living section to be a pressure vessel unto itself, which would have greatly increased the crew's survivability if they were struck by an enemy torpedo or depth charge during combat. The Alfas were also unique in that they had a crew escape module that could take all the crew safely to the surface should the ship be catastrophically damaged. This was said to have been a result of the horrific events surrounding the K-19 incident.
The most outrageous aspect of the Alfa Class design was its exotic nuclear reactor, which was a compact and incredibly powerful unit that was cooled by molten metal (lead-bismuth). The advantages to such a reactor setup are numerous include greater efficiency and being less prone to leakage, but the disadvantages were also quite severe, which you can read about here

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

One of the most prominent disadvantages of the Alfa Class's lead-bismuth nuclear reactor setup was that it could not be shut down unless a source of super-heated off-board steam was available to keep the molten lead-bismuth coolant in a non-solid state. If it were allowed to solidify, which happened at 257' F, the reactor would be unable to be restarted as its fuel rods would be frozen in the solidified metal coolant. Similar to a fire that constantly needs to be fed or you literally have to build a new one from scratch, the Alfa Class's nuclear reactors were innovative but extremely demanding.
Seeing as the USSR's port-side infrastructure was more of an afterthought compared to the high-tech submarines and ships that relied on it, often times an external steady steam supply was less than reliable. Thus the subs would have to run their reactors continuously while in port to maintain their coolant in a liquefied state. Such a situation meant that the ability to do deep maintenance on the reactors was a challenge and they were never really built to be ran continuously for extreme periods of time in the first place. Thus their lifespan was greatly reduced, and it is said that four of the seven Alfa Class submarines met their retirement early due to entombed, or 'frozen' reactors cores that could not maintain their coolant's high temperature needs. 

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

The Alfa's cutting-edge and sometimes less than reliable automated systems, small crews, and their needy reactors, kept them in port much more than their traditionally configured, nuclear hunter-killer submarine cousins. Thus, like their MiG-25 analogues, the Alfa Class boats were used as alert interceptors instead of on long escort screening missions or patrol duties. They would wait in port until a target was detected, at which time they would scramble out of their harbor and sprint to that target's last known location. There they would begin their cat and mouse game, and this was a game they were incredibly good at.
These 'interceptor subs' had a single five bladed main screw tied to a 40,000hp steam turbine that could blast the boat through the depths at unprecedented speeds. The Alfa Class was also equipped with two additional smaller and super-quiet, 100kw, electrically powered propulsors, that were used for stealth maneuvering. Different sources state different speeds that the Alfa Class boats were capable of hitting, but largely their top speed was said to be in excess of 43kts. Some have even said these boats were clocked doing over 50kts while running from an armada of American anti-submarine assets. Keep in mind that the American Los Angeles Class SSNs, many of which are still in service with the USN today, are said to have a top speed of around 35kts and a dive capability stated as 950 feet. Really, this number is said to be closer to 1250 feet, with a crush-depth of 1500, which is not even close to the Alfa's low-ball estimated maximum operating depth of just over 2200 feet. 

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

The Alfa boats were not just ridiculously fast and deep diving, but they were also super maneuverable, and said to be able to accelerate at a blistering rate (some reports say they could go from a dead stop to full speed in under two minutes, while others put it at just under 90 seconds). There small size and light weight meant that they could also come to a dead stop on a dime while changing depth and course rapidly via her gobs of excess power. All these qualities, along with her stealthy shape and skin coatings, put the Alfas outside the engagement envelope of the majority of anti-sub weaponry fielded at the time of her lead ship's commissioning.
According to a Navy anti-submarine officer that served during the days when the Alfa Class was not yet fully understood and highly-feared on — or below — the seas, these boats were "loud as hell" when speeding toward their targets or muscling around during tight maneuvers, but once when they were operating on their propulsors, they were as quiet as any Russian hunter-killer sub deployed at the time. Additionally, the Alfa's ability to rapidly dive so deep, well below the thermocline, gave them an ability to disappear and reappear over fairly large distances in a relatively short period of time. 

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

The Alfa Class was not a particularly heavily armed attack submarine, being able to carry 18 torpedoes. But this arsenal could include the 250mph, supercavitating, rocket assisted VA-111 Shkval, which could put a western attack sub on the defensive in seconds. All things considered, the Alfa Class's limited magazine was fine considering that these boats ended up being interceptors as opposed to true long-range hunter-killer subs. As for the Alfa Class's ability to detect enemy submarines and ships, the sonar systems installed were state-of-the-art, and highly capable, but their high degree of automation and smaller size meant resulted in them being temperamental. This, combined with these boats' small crew meant that sensor system failures, even relatively rudimentary ones, could result in mission kill.
In the end a total of just seven Alfa Class subs were built, many less than the USSR led on to be in the works, and the first in the class, The Leningrad, was more of a prototype than an operational boat, as it suffered from major defects with its titanium hull and higher maintenance reactor design than follow-on production units. Still, these boats, and their highly secretive development cycle, set off a scramble in the west that resulted in new torpedo designs, mainly the US Mk48 ADCAP program and the UK's Spearfish torpedo program, improved detection systems, all of which were needed to detect and mitigate the Alfa's raw performance edge. Additionally, the fear that the Soviets would build up their fleet with many dozens of these small, high-speed subs spurred further investment in US and its allies' naval anti-submarine capabilities. 

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War

As the late 1970s turned into the early 1980s, like its high and fast flying MiG-25 counterpart, the threat posed by a small force of Alfa Class subs was realized to be more terrifying on paper than it was in real life. Yet some naval historians state that the Alfa Class, even with its noisy emissions during its high-speed runs, could have been paired with super-quiet and slower attack subs to devastating effects and that the Class's biggest missed opportunity was how it was implemented, regardless of how reliable and expensive they were to operate.
On the Russian side of the Alfa Class's legacy equation, evolved versions of many of the boat's innovative automated systems and structural design elements were carried over onto the highly successful Akula Class hunter-killer sub series, which still serves with the Russian and Indian Navies today.
By 1995 all of the charismatic but very expensive to operate (they didn't get the nickname "Golden Fish" for nothing) and temperamental Alfa Class boats were either decommissioned or previously written off. Since their heyday, submarine design has concentrated much less of brute speed and deep operating depths and more on stealth, persistence and affordability, both in terms of life-cycle costs and acquisition costs. Still, just as with its equally operationally unbalanced, high and super-fast flying MiG-25 cousin, the Alfas will be remembered as the shadowy hot rod subs of the Cold War. Thoroughbred boats that may have had their clear deficiencies, but that pushed the technological barrier to the edge of collapse and back again during their relatively short operational lives. 

Russia's Alfa Class Was The Terrifying Hot Rod Sub Of The Cold War
Pictures via public domain. Sources FAS.org, Military-Today

Tyler Rogoway is a defense journalist and photographer that maintains the website Foxtrot Alpha for Jalopnik.com You can reach Tyler with story ideas or direct comments regarding this or any other defense topic via the email address Tyler@Jalopnik.com

Akula-class submarine

From Wikipedia, the free encyclopedia
This article is about the Soviet/Russian submarine class with NATO reporting name "Akula". For the submarine class with native Russian name "Akula" (Акула), see Typhoon class submarine.

Submarine Vepr by Ilya Kurganov crop.jpg
Class overview
Name: Akula
Operators: Soviet Navy Ensign Soviet Navy
Russian Navy Ensign Russian Navy
Indian Naval Ensign Indian Navy
Preceded by: Operational predecessor: Victor class
By sequence of construction: Sierra class
Succeeded by: Yasen class
Cost: est. $1.55 billion (1995 dollars)
In service: 1984
Planned: 21 (6 later cancelled)[1]
Completed: 15
Active: 10 (9 in Russia, 1 in India)
General characteristics
Type: nuclear-powered attack submarine
Displacement: surfaced:
8,140 tons Akula I and Akula I Improved
8,450–8,470 tons Akula II and III
submerged:
12,770 tons Akula I and Akula I Improved
13,400–13,800 tons Akula II and III
Length: 110.3 m (362 ft) for Akula I and Akula I Improved
113.3 m for Akula II and Akula III
Beam: 13.6 m
Draught: 9.7 m
Propulsion: one 190 MW OK-650B/OK-650M pressurized water nuclear reactor
1 OK-7 steam turbine 43,000 hp (32 MW)
2 OK-2 Turbogenerators producing 2,000 kW
1 seven-bladed propeller
2 OK-300 retractable electric propulsors for low-speed and quiet maneuvering at 5 knots (6 km/h)
Speed: 10 knots surfaced
28-35 knots submerged[2]
Endurance: 100 days[1]
Test depth: 480 m test depth for Akula I and Akula I Improved
520 m for Akula II and III
600 m maximum operating depth[3]
Complement: 73 for Akula I & Improved,[4] 62 (31 officers) for Akula II & III [5]
Sensors and
processing systems:
MGK-540 active/passive suite
Flank arrays
Pelamida towed array sonar
MG-70 mine detection sonar
Electronic warfare
and decoys:
Bukhta ESM/ECM
*MG-74 Korund noise simulation decoys (fired from external tubes)
MT-70 Sonar intercept receiver
Nikhrom-M IFF
Armament:
  • 4 × 533mm torpedo tubes (28 torpedoes) and 4 × 650mm torpedo tubes (12 torpedoes). (K-152 Nerpa has 8 × 533mm torpedo tubes) 40 torpedoes total
  • 1–3 × SA-N-10 Igla-M Surface-to-air missile launcher fired from sail (surface use only)
  • RK-55 Granat cruise missiles
Notes: Chiblis Surface Search radar
Medvyeditsa-945 Navigation system
Molniya-M Satellite communications
MGK-80 Underwater communications
Tsunami, Kiparis, Anis, Sintez and Kora Communications antennas
Paravan Towed VLF Antenna
Vspletsk Combat direction system

Project 971 Щука-Б (Shchuka-B, 'Shchuka' meaning "pike", NATO reporting name "Akula"), is a nuclear-powered attack submarine (SSN) first deployed by the Soviet Navy in 1986. The class is also known under the name Bars (meaning "snow leopard").[6] There are four sub-classes or flights of Shchuka, consisting of the original seven "Akula I" submarines which were commissioned between 1984 and 1990, six "Improved Akula" submarines commissioned between 1991 and 2009, one "Akula II" submarine commissioned in 1995 and one "Akula III" commissioned in 2001.[citation needed] The Russians call all of the submarines Shchuka-B, regardless of modifications.[7]
Some potential for confusion may exist, as the name Akula (Акула meaning "shark" in Russian) was used by the Soviets for a different submarine, the Projekt 941 which is known in the West as the Typhoon-class. By contrast, the Projekt 971 (the subject of this article) was named Shchuka-B by the Soviets but designated as the "Akula-class" by the West after the name of the lead ship, K-284.
The launch of the first submarine in 1985, according to defense analyst Norman Polmar, "shook everyone [in the West] up", as Western intelligence agencies had not expected the Soviet Union to produce such a boat for another ten years.[8]

Contents

Construction

Descriptions of the SSN Akula class.
The Akula incorporates a double hull system composed of an inner pressure hull and an outer "light" hull. This allows more freedom in the design of the exterior hull shape, resulting in a submarine with more reserve buoyancy than its western analogs. This design requires more power than single-hull submarines[citation needed] because of the greater wetted surface area, which increases drag.
The distinctive "bulb" or "can" seen on top of the Akula's rudder houses its towed sonar array, when retracted. Most Akulas have the SOCKS[citation needed] hydrodynamic sensors, which detect changes in temperature and salinity. They are located on the leading edge of the sail, on the outer hull casing in front of the sail and on the bottom of the hull forward of the sail. All Akulas have two T-shaped doors on the aft bottom of the hull, on either side[citation needed]. These are where the OK-300 auxiliary propulsion devices are located, which can propel the submarine at up to 5 knots (9.3 km/h).[citation needed]

Line drawing showing the starboard side of the Project 971 (Akula) Soviet submarine. The white cheatline marks the boat's waterline.
All Akulas are armed with four 533 mm torpedo tubes which can use Type 53 torpedoes or the SS-N-15 Starfish missile, and four 650 mm torpedo tubes which can use Type 65 torpedoes or the SS-N-16 Stallion missile. These torpedo tubes are arranged in two rows of four tubes each. Improved Akulas, Akula IIs have an additional six 533 mm torpedo tubes mounted externally, capable of launching possibly up to 6 decoys each[citation needed]. The external tubes are mounted outside the pressure hull in one row, above the torpedo tubes, and can only be reloaded in port or with the assistance of a submarine tender. The 650 mm tubes can be fitted with liners to use the 533 mm weaponry. The submarine is also able to use its torpedo tubes to deploy mines.

Current status

As with many Soviet/Russian craft, information on the status of the Akula Class submarines is sparse, at best. Information provided by sources varies widely.

Akula-I (project 971)

The four known variants within the Akula class.
Of the seven original Akula-I submarines, only three are known to still be in service. These boats are equipped with MGK-500 Skat sonar system (with NATO reporting name Shark Gill).[9][10] The lead boat of the class, K-284 'Akula' was decommissioned in 2001, apparently to help save money in the cash-strapped Russian Navy. K-322 'Kashalot' and K-480 'Bars' [Currently Ak Bars] are in reserve. K-480 'Bars' was put into reserve in 1998,[1] and is being dismantled in February 2010.[11] 'Pantera' returned to service in January 2008 after a comprehensive overhaul.[12] All were retrofitted with the SOCKS hydrodynamic sensors except Volk. All submarines before K-391 Bratsk have reactor coolant scoops that are similar to the ones of the Typhoon class SSBNs, long and tubular. Bratsk and subsequent submarines have reactor coolant scoops similar to the ones on the Oscar IIs, short and (the Typhoon, Akula and Oscar classes use the similar OK-650 reactor).

Akula-I Improved (project 971 and 971I)

The six Akulas of this class are all thought to be in service. They are quieter than the original MGK-500 Skat sonar system on Akula-I is upgraded to the MGK-501 Skat-MS. Sources also disagree as to whether construction of this class has been suspended, or if there are a further two units planned.
Improved Akula-I Hulls: K-328 Leopard, K-461 Volk, K-154 Tigr, K-419 Kuzbass, K-295 Samara and K-152 Nerpa. These submarines are much quieter than early Akula class submarines and all have the SOCKS hydrodynamic sensors except Leopard.[13] The Akula-I Improved submarines have 6 533 mm decoy launching tubes, as do subsequent submarines. They have a different arrangement of limber holes on the outer hull than Akula Is. Nerpa and Iribis (not completed) have a different rescue chamber in the sail.[citation needed] I can be distinguished by the large dome on the top surface.

Akula-II (project 971U)

K-157 Vepr is the only completed Akula II[citation needed]. The Akula II is three meters longer and displaces about 700 tons (submerged displacement) more than the Akula I. The added space was used for additional quieting measures. The MGK-501 Skat sonar system on Akula-I is replaced to a new MGK-540 Skat-3 sonar system,.[14] K-157 Vepr became the first Soviet submarine that was quieter than the latest U.S. attack submarines of that time, which was the Improved Los Angeles class (SSN 751 and later).[15] Two of these submarines were used to build the Borei class SSBNs.

Akula-III (project 971M)

K-335 Gepard is the only completed Akula III (see table for others)[citation needed](There is no AKULA III NATO classification). It is longer and has a larger displacement compared to the Akula II. Also, it has an enlarged sail and a different towed-array dispenser on the vertical fin. Again, more noise reduction methods were employed. The Gepard is the most advanced Russian submarine before the submarines of the Severodvinsk and Borei classes are commissioned. One of this class was used to complete the Borei SSBNs.
The Soviet advances in sound quieting were of considerable concern to the West, for acoustics was long considered the most significant advantage in U.S. submarine technology compared to the Soviets.

Akula class submarine under way
In 1983–1984 the Japanese firm Toshiba sold sophisticated, nine axis milling equipment to the Soviets along with the computer control systems, which were developed by Norwegian firm Kongsberg Vaapenfabrik. U.S Navy officials and Congressmen announced that this technology enabled the Soviet submarine builders to produce more accurate and quieter propellers.[16]
{{This reference should be expanded to include the information that the "Toshiba" company listed was Toshiba Machine Tool Company (TMTC) and not in any way related to Toshiba Corporation, the electronics firm. It should also note that TMTC provided only the actual machine lathe and the numeric controller which enabled the lathe to turn the propellers' complex curves was provided separately by Kongsberg Vaapenfabrik directly to the Soviet shipyard. No U.S. equipment or technology was involved in the sales}}
Due to the breakup of the Soviet Union in 1991, production of all Akulas slowed.
The 1999–2000 edition of Jane's Fighting Ships incorrectly listed the first Akula-II as Viper (the actual name is "Vepr", "wild boar" in Russian), commissioned November 25, 1995, Gepard (Cheetah), launched 1999 and commissioned December 5, 2001, and Nerpa, laid down in 1993[1] began sea trials in October, 2008 and was commissioned by the Indian Navy as INS Chakra II in April 2012.[17]

Lease to India

Three hundred Indian Navy personnel were trained in Russia for the operation of the Akula II submarine Nerpa. India has finalized a deal with Russia, in which at the end of the lease of these submarines, it has an option to buy them. The submarine is named INS Chakra as was the previous India-leased Soviet Charlie-I SSGN.[29] INS Chakra was officially inducted into the Indian Navy on April 4, 2012.[30][31]
Whereas the Russian Navy's Akula-II could be equipped with 28 nuclear-capable cruise missiles with a striking range of 3,000 km (1,620 nmi; 1,864 mi), the Indian version is reportedly armed with the 300 km (162 nmi; 186 mi)-range 3M-54 Klub nuclear-capable missiles.[32] Missiles with ranges greater than 300 km (162 nmi; 186 mi) cannot be exported due to arms control restrictions, since Russia is a signatory to the MTCR treaty.
Russia said in December 2014 that it is ready to lease India more nuclear-powered submarines a day after President Vladimir Putin and Prime Minister Narendra Modi pledged to deepen defence ties.[33]
In January 2015, it was reported that India was involved in negotiations involving the leasing of the Kashalot and the Iribis.[19]

Nerpa 2008 accident

On 27 October 2008, it was reported that K-152 Nerpa of the Russian Pacific Fleet had begun her sea trials in the Sea of Japan before handover under a lease agreement to the Indian Navy.[34] On 8 November 2008, while conducting one of these trials, an accidental activation of the halon-based fire-extinguishing system took place in the fore section of the vessel. Within seconds the halon gas had displaced all breathable air from the compartment. As a result, 20 people (17 civilians and 3 seamen)[35][36] were killed by asphyxiation. Dozens of others suffered freon-related injuries and were evacuated to an unknown port in Primorsky Krai.[37] This was the worst accident in the Russian navy since the loss of the submarine K-141 Kursk in 2000. The submarine itself did not sustain any serious damage and there was no release of radiation.[38]

Recent overseas deployments

In August 2009, the news media reported that two Akula-class submarines operated off the East Coast of the United States, with one of the submarines being identified as a Project 971 Shchuka-B type. U.S. military sources noted that this was the first known Russian submarine deployment to the western Atlantic since the end of the Cold War, raising concerns within U.S. military and intelligence communities.[39] The U.S. Northern Command confirmed that this 2009 Akula-class submarine deployment did occur.[40]
In August 2012, the news media reported that another Akula-class submarine operated in the Gulf of Mexico purportedly undetected for over a month, sparking controversy within U.S. military and political circles, with U.S. Senator John Cornyn of the Senate Armed Services Committee demanding details of this deployment from Admiral Jonathan W. Greenert, the Chief of Naval Operations.[41]

VA-111 Shkval

From Wikipedia, the free encyclopedia
VA-111 Shkval
VA-111 Shkval
VA-111 Shkval
Type Supercavitating Torpedo
Place of origin Russia
Service history
In service 1977-present
Used by Russian Navy
Production history
Designer NII-24 research institute
Designed 1960s-70s
Manufacturer Tactical Missiles Corporation
Produced 1977-present
Variants Shkval 2 Shkval-E
Specifications
Weight 2,700 kg (6,000 lb)
Length 8.2 m (26 ft 11 in)
Diameter 533 mm (21 in)

Effective firing range Shkval: 7 km (4.3 mi)
Shkval 2: From 11–15 km (6.8–9.3 mi)
Warhead Conventional explosive or nuclear
Warhead weight 210 kg (460 lb)

Engine Solid-fuel rocket
Propellant Solid-fuel
Speed Launch speed: 50 knots (93 km/h; 58 mph)
Maximum speed: in excess of 200 knots (370 km/h; 230 mph)
Guidance
system
GOLIS autonomous inertial guidance
Launch
platform
533 mm torpedo tubes

The VA-111 Shkval (from Russian: шквалsquall) torpedo and its descendants are supercavitating torpedoes developed by the Soviet Union. They are capable of speeds in excess of 200 knots (370 km/h).[1]

Contents

Design and capabilities

Design began in the 1960s when the NII-24 research institute was ordered to produce a new weapon capable of engaging nuclear submarines. The merger of the institute and GSKB-47 created the Research Institute of Applied Hydromechanics, who continued with the design and production of the Shkval.[2]
Previously operational as early as 1977, the torpedo was announced as being deployed in the 1990s.[2] The Shkval is intended as a countermeasure against torpedoes launched by undetected enemy submarines.[2]

Shkval nose cone
Shkval rear, showing the guidance fins and the electronics connector
The VA-111 is launched from 533 mm torpedo tubes at 50 knots (93 km/h) before its solid-fuel rocket ignites and propels it to speeds of 200 knots (370 km/h). Some reports indicate that speeds of 250+ knots may be achieved, and that work on a 300-knot (560 km/h) version was underway.[3] This high speed is due to supercavitation, whereby a gas bubble, which envelops the torpedo, is created by outward deflection of water by its specially-shaped nose cone and the expansion of gases from its engine. This minimizes water contact with the torpedo, significantly reducing drag.[2]
Early designs may have relied solely on an inertial guidance system.[4][5] The initial design was intended for nuclear warhead delivery. Later designs reportedly include terminal guidance and conventional warheads.[6]
The torpedo steers using four fins that skim the inner surface of the supercavitation gas bubble. To change direction, the fin(s) on the inside of the desired turn are extended, and the opposing fins are retracted.[2]

Manufacture

The torpedo is manufactured in Kyrgyzstan by a state-owned factory. In 2012 the Russian government asked for a 75% ownership of the factory in exchange for writing off massive Kyrgyz debt to Russia.[7]

Espionage

In 2000, former U.S. Naval intelligence officer and an alleged DIA spy Edmond Pope (Captain, USN, retired) was held, tried, and convicted in Russia of espionage related to information he obtained about the Shkval weapon system. Russian President Vladimir Putin pardoned Pope in December 2000, allegedly on humanitarian grounds because he had bone cancer.[8][9]

Specifications

There are at least three variants:
  • VA-111 Shkval – Original variant; GOLIS autonomous inertial guidance.
  • "Shkval 2" - Current variant; believed to have additional guidance systems, possibly via the use of vectored thrust, and with much longer range.
  • A less capable version currently being exported to various third world navies. The export version is referred to as "Shkval-E".
  • Iran claimed it has created a version named Hoot.
All current versions are believed to be fitted only with conventional explosive warheads, although the original design used a nuclear warhead.
  • Length: 8.2 m (26 ft 11 in)
  • Diameter: 533 mm (21 in)
  • Weight: 2,700 kg (6,000 lb)
  • Warhead weight: 210 kg (460 lb)
  • Speed
    • Launch speed: 50 knots (93 km/h; 58 mph)
    • Maximum speed: 200 knots (370 km/h; 230 mph) or greater
  • Range: Around 11–15 km (6.8–9.3 mi) (new version). Older versions only 7 km (4.3 mi)[10]

See also

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Submarines are a lot like Batman, they are covered in rubber and are great fighters, but they are gadget toting stealth detectives at their core. Of the Navy’s sub force, there is no boat more capable at sleuthing under the high seas than the heavily modified Seawolf Class submarine, the USS Jimmy Carter SSN-23.
The 12,150 ton displacement USS Jimmy Carter, whose namesake qualified in Submarines during his pre-Presidential naval career, is one of only three Seawolf Class submarines ever built. The Seawolfs are relics of the final stages of the Cold War and are the most lethal fast attack submarines ever created. The F-22 Raptors of the sea, they could dive incredibly deep, could haul along at speeds approaching 40 knots, and they were quieter than any other nuclear submarine on the planet. They were also armed with a cache of 50 weapons and wide 660mm torpedo tubes. 





The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Seeing as the first boat was launched during the “peace dividend” years of the 1990s, its $3B price tag was thought to be too high and its ‘blue water’ sub hunting mission was becoming a secondary priority for the US Navy as the majority of Russia’s submarine fleet was rotting next to a pier. Instead, future subs would need to be more multi-role minded, cheaper to acquire and be more at home in shallow, littoral environments close to shore. As a result, the Seawolf class was replaced by the smaller, cheaper, and somewhat more flexible Virginia Class that remains in serial production today.





The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Regardless of the type’s cancellation, the Navy did receive three Seawolf Class boats, the Seawolf, Connecticut and the Jimmy Carter. With the Jimmy Carter, the Navy took advantage of the Seawolf Class’s deep-diving and ultra-quiet capabilities and created a one-off subclass that would become part of a small but very proud lineage of shadowy American submarines that were highly modified for clandestine surveillance and espionage operations.
The Jimmy Carter, which was commissioned in 2005, differs from the standard Seawolf Class submarine via a slew of modifications made during her initial construction. A massive 100 foot long hull extension gives the Jimmy Carter a length only second to the massive Ohio Class Submarines (SSBN/SSGN) in US inventory. This extension, called the Multi-Mission Platform, is described as a ‘moon bay’ with an hourglass shaped passage running down the center of it. 





This rounded underwater hangar of sorts can hold outsized deep-diving vehicles, unmanned vehicles, custom-built heavy machinery, spools of cable, special forces supplies and craft, deployable sensors and weapons, along with just about anything else you can imagine. Through a lockout chamber system built within the MMP hold, divers, commandos and remotely operated vehicles can be deployed and recovered. 

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Other modifications to the Jimmy Carter include a set of precision thrusters, both fore and aft, that allow the sub to hold its position perfectly within space while conducting sensitive mechanical operations or when quietly trawling shallow waters. The Carter also has a large reconfigurable cargo bay, just off the MMP’s lockout chamber/ocean interface, for servicing vehicles and preparing for clandestine missions.
A modular command center can also be tailored to the specific mission at hand, with different configurations available for special operations, deep sea espionage, mine warfare, specialized sensor or unmanned systems deployment and just about any other mission you can think of. 





The Jimmy Carter’s mast can be easily adapted to sport unique, purpose-built electronic surveillance and communications sensors. There is also said to be a remotely operated vehicle handling system that may feature the ability to recover autonomous vehicles and even aerial drones with limited human direction. 

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Finally, SSN-23 can accommodate an extra 50 commandos or mission personnel above the standard crew size of about 130. Instead of sleeping in the torpedo room or other improvised areas as is common for special operations soldiers aboard submarines, this berthing was built into the original ship’s design, making long endurance deployments more palatable.
Because the hull was lengthened 100 feet to accommodate many of the Jimmy Carter’s additional capabilities, the boat did not have to give up the baseline Seawolf Class fast attack and strike abilities. This means the vessel can protect itself in hostile waters or be tasked for traditional fast attack submarine duties, although it seems like this may be a fairly rare occurrence. 





So what does the Jimmy Carter do with all its modifications? Like its USS Halibut, USS Seawolf, USS Richard Russell and USS Parche, which were modified ‘special mission’ subs that came before it, the Jimmy Carter conducts espionage, and could even conduct sabotage, in a variety of manners.
Its ability to hold perfectly on station at great depths, all while deploying custom built ROVs and other elaborate hardware, allows it to tap communications and data cables running along the sea floor. In the past, this was done by splicing in tailor made recording devices, leaving them for a period of time, and recovering them at a later date for exploitation. Today, in an age of fiber optics, more exotic forms of real-time seabed-based communication eavesdropping could theoretically be facilitated by the Jimmy Carter, with the NSA rumored to one of the boat’s biggest ‘customers.’ 

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Tapping the world’s massive underwater arteries of data is one thing, but the Carter could also be able to sabotage communications nodes via simply cutting through the wire with large claws or torches, or by setting up mechanisms that could do similar tasks on command sometime in the future, should the need arise. Much of this technology has been pioneered in the deep sea oil drilling field (think Deepwater Horizon), which can be adapted and used ‘off label’ for military purposes. Such an ability could partially blind the enemy and limit their global situational awareness and command and control capabilities during a time of war without actually ‘kinetically’ attacking land targets in a traditional sense. 





The Carter can also use its underwater manipulation abilities and sensors to find things that foreign governments have lost. Not only can it examine those things up close on the sea floor, but if they are within the dimensions of the sub’s MMP bays, it can recover them and transport them to a safe place for further examination. 

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter
 
The Jimmy Carter can also perform passive signals and communications intelligence missions via moving in close to a country’s shoreline and utilizing its easily customizable mast to deploy aerials that are purpose built to pickup particular radio frequency transmissions. This can be as focused as searching for a single cellular phone transmission in a city, to soaking up an enemy’s electronic order of battle, including air and sea defense radar emissions and command and control communications and data exchanges. 





Although all fast attack and guided missile submarines have these capabilities to varying degrees, the Carter’s modular mission center and adaptable systems allow for the installation of new, experimental sensors and command and control interfaces without heavily interrupting the boat’s normal operations or demanding long in-port modification timelines. 

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Because SSN-23 has what equates to large hangar bay, berthing for 50 and a configurable command and control space, the Jimmy Carter is a special forces dream machine. It can carry out-sized payloads inside its MMP bays, such as boats and underwater speeders, as well as throngs of sensitive gear and dozens of commandos in comparative luxury within its pressure hull. It can also deploy small UAVs for special operations overwatch and communications relay, not to mention it can also carry a standard seal delivery vehicle dock on its spine.
Because of its unique modular nature, the USS Jimmy Carter can act as something as an operational test ship for leading edge technologies. It is rumored that it was the first submarine to be equipped with an aforementioned unmanned aerial vehicle, which it supposedly launched shortly after North Korea barraged a South Korean island with artillery shells, to assess the damage.





The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Because of its large MMP bay, and its ability to carry ‘piggyback’ payloads, just like other fast attack and guided missile submarines, it would be the perfect vessel to field unmanned undersea combat vehicles. Not only could these be used as scouts, navigating closer to foreign shores for spying purposes, but they could also act in concert with the Carter for hunter-killer operations. Because these vessels are unmanned, they could use complex, coordinated tactics, data-linking their information to their Carter mothership. By fusing their sensor data with the Jimmy Carter’s, a large increase in situational awareness and survivability may be possible. Just like unmanned combat aircraft, they could range out a distance from their mothership turn on their active sonars, giving away their position but obtaining critical sensor data, all the while the Carter’s stays masked in silence a distance away.

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

Mine warfare, of both a defensive and offensive nature, is another aspect of undersea combat that the Carter is remarkably well suited for. Its massive cargo space can be used to house mines and other autonomous weapons, while the boat’s ROVs can help deploy them. These same attributes can also be used for deploying unmanned craft and external sensors for detecting and disabling enemy mines, especially high-end ones that can lay on the sea floor for long periods of time, just waiting for the right acoustic signature to come alive and prosecute a surprise attack from below.
Finally, so many of the same warfighting and espionage capabilities that this unique machine possesses can also be used for oceanic research. The craft’s amazing array of sonars, both passive and active, could be re-roled for scientific exploration, from mapping the seabed to seismic research. I know what you are thinking, why wasn’t this incredible asset used to search for MH370, or any advanced military submarine for that matter. Sadly, I cannot answer that question aside from the possibility that operating around a foreign coalition could give away some of the boat’s unique capabilities and expose some of its inherent limitations. This goes for any advanced submarine really.
With the threat of a new Cold War possibly emerging and with China’s rapid expansion, both as an economic and military power, the USS Jimmy Carter is probably in more demand than at any time in its decade long career. When you consider how wide ranging we have discovered the government’s domestic communications spying programs are here at home, you can use your imagination as to just how busy the NSA and other US spy services have been abroad. Just like how the CIA went to the Navy SEALs for one of the hardest clandestine special forces operations in history, the NSA calls upon the Navy’s giant multi-purpose spy ship to do the same, that being the one of a kind USS Jimmy Carter.

The Navy's Most Shadowy Spy Is 450 Feet Long & Named After Jimmy Carter

http://nextbigfuture.com/

July 01, 2015


A 21st Century Submarines arms race could see numbers exceeding the 1000 German U-boats of WW2

There were about 1000 German U-boats built over the course of World War 2.

The main German sub was the Type 7C which was about 800 tons and 67 meters (220 feet) long.

Currently the USA has about 55 nuclear submarines that cost about $1-3 billion each. On average the cost of each submarine is about $1.6 to 2 billion. The annual operating cost for any of these subs is approximately $21 million. The typical service life of a nuclear sub is about 30 years. Refueling and modernizing at the half-life point costs about $200 million. Near the end of the service life, another refueling and extensive overhaul for about $410 million will extend the life another 12 years, for a total service life of 42 years. This totals to about $3.6 billion in constant dollars over the lifetime of a Seawolf class sub.

Air independent diesel electric can cost about $100 to 300 million. Operating costs are lower. Automation can reduce the crew required and further reduce costs. Mass production of robot submarines could see unit costs at $50 million.


Roughly $100 million for the Swedish Gotland submarine


Current DARPA is a robotic surface ship but robotic submarines will likely be developed

James Fanell (x- Navy captain and naval expert), prediced China's Navy would grow to include 99 submarines of all types, four aircraft carriers, 102 destroyers and frigates, 26 corvettes, 73 amphibious ships and 111 missile craft. All told, Fanell predicted, the Chinese Navy of 2030 will comprise 415 ships. This is up from about 300 ships now. This is based upon a projection of the current rate of production for the Chinese Navy. China building about 10 new submarines each year.

If there were an escalation of the submarine arms race that is currently beginning and the shift to low cost Air independent diesel submarines continued, then the 55 expensive US nuclear submarines could eventually be replaced by 1000 to 2000 robotic submarines and AIP diesel submarines. The USA and China could afford to spend $5 to 15 billion per year building up to the 1000 to 2000 low cost and robotic submarine fleet levels over ten years.

'Picking up the quiet hum of a battery-powered, diesel-electric submarine in busy coastal waters is 'like trying to identify the sound of a single car engine in the din of a major city,' says Rear Admiral Frank Drennan, commander of the Naval Mine and Anti-Submarine Warfare Command.

Small but longer endurance submarines

China has a new midget submarine in the 400-500 tonnes size range (about 37 meters long.) It appears similar to the South Korean KS 500A.



DigitalGlobe imagery published on Google Earth showing what appears to be a midget submarine at the Wuchang shipyard in Wuhan, China. A Type 041 conventional submarine berthed at the same site in January is shown for comparison. (IHS/Google, DigitalGlobe)

KS 500A submarine specifications

— displacement — 510 tons;
— length of 37 meters;
— width — 4.5 m;
— maximum depth — 250 meters;
— max speed / economy — 20/7 knots;
— while the autonomous sailing — 3 weeks;
— range of up to 2 thousand miles.
— crew min / max people -5/10
— landing capacity — 14 people.

US Robotic anti-submarine ship

Speaking at a National Defense Association Event in Virginia,DARPA program manager Ellison Urban outlined why the Navy needs sub-hunting boat bots.

DARPA has Robotic submarines in development. The Anti-Submarine Warfare Continuous Trail Unmanned Vessels (ACTUV) will be reportedly able to operate autonomously up to 90 days. The 132-foot autonomous boat will guide other US military vessels to the sub's location to destroy it.

The ACTUV prototype dubbed "Sea Hunter" will be ready for extensive tests in the fall of 2015.

Anti-submarine plane

The People's Liberation Army Navy (PLAN) has introduced into service a new maritime patrol and anti-submarine warfare (ASW) variant of the Shaanxi Aircraft Corporation (SAC) Y-8/Y-9 medium transport aircraft, national media reported in late June.

An unspecified number of the four-engined Y-8GX6 (Y-8Q) turboprops have now been inducted into the North Sea Fleet, which is responsible for the maritime domain that stretches from the North Korean border to Lianyungang (Jiangsu Province), some three-and-a-half years after the type was first revealed in late 2011.

No further details about the entry-into-service were revealed in the report, which appeared on a Chinese defence blogging site, except that the Y-8GX6 (Y-8Q) may be rolled out to the PLAN's East and South Sea Fleets at a later date.
Seen when it first emerged in late 2011, the Y-8GX6 (Y-8Q) maritime patrol and anti-submarine warfare aircraft is now understood to have entered service with the PLAN's North Sea Fleet. Source: FYJS web page

http://nextbigfuture.com/

July 04, 2015


Russia rebuilding and repairing its navy

11 ships will be handed over to the Russian Navy after repairs and one vessel will be the fourth Varshavyanka class submarine that should be handed over to the military by the end of the year.

Russia’s shipbuilding industry is not in good shape, as the delays in refitting the Admiral Gorshkov aircraft carrier as the Indian Vikramaditya showed. The United Shipbuilding Corporation has had integration problems and some shipyards have not been modernised since the Soviet period. Additionally, certain elements of the rearmament programme could be delayed as a result of the ending of defence cooperation with Ukraine.

While the industry is not likely to meet the targets set by the current armament programme, it will probably be able to produce 50-70% of the weapons and equipment required by 2020.

Russia intends to restore its navy’s global reach, but given the time needed to renovate shipyards, develop new designs, and build large ships, the effort will not be fully launched until the 2020s. The earliest that Russia could built a new aircraft carrier is 2027, while new destroyers are still on drawing board, with the first unlikely to be commissioned for ten years.
Russia can realistically expect to get modernized and repaired frigates and some destroyers and cruisers. They should also have a handful of new ballastic missile submarines and some multi-purpose diesel submarines.















Most of the expected naval ships that Russia had under construction were frigates.

Some Incomplete Frigates could be sent from Russia to India in order to get the Ukrainian Turbines

The fourth and fifth Project 11356 frigates, built for the Russian Navy at the Kaliningrad Yantar shipyard, might be sent to India. A source in the Defense Ministry informed Lenta.ru of this. Such a move will make it possible to equip the ships with turbines of Ukrainian manufacture that were previously ordered but which Kiev now refuses to supply since they would be used for equipping Russian warships. The first three ships will be transferred to the Russian Navy on time.




Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 


Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 

In terms of looks, if a DC-8 and a P-3 ever drank to much high octane fuel and had a steamy one-night stand, the Kawasaki P-1 would be born nine months later. Japan’s home-made and high-tech multi-mission maritime patrol aircraft is a purpose-built weapon system with a lot going for it, and Japan hopes potential foreign customers agree.





Japan began working on the P-1 as a replacement for their aging P-3 Orions after the Lockheed P-7 was cancelled in the 1990s and after no other available type seemed to meet their needs. This occurred in a very similar manner as how the U.S. Navy developed the Boeing P-8 Poseidon. The big difference between the P-8 and the P-1 being that the P-8 was adapted from the most prolific airliner of all time, the 737, while the P-1 was a clean-sheet design that is specifically configured for the long-range multi-role maritime patrol mission set. Most notably, the P-1 is slightly smaller than the P-8 yet it features four turbofan engines instead of two.





Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 

Many have besmirched the P-8 for only having two jet engines. Its challenging mission set, that often sees the aircraft flying to very remote areas and at lower altitudes where birds often share the airspace, does question the logic of procuring a twin-engine aircraft in such a role. Boeing and the Navy have posited that the P-8 can operate at higher altitudes with its improved sensors and that engine technology has come a long way in recent decades. How higher operating altitudes and two engines instead of four will affect the P-8’s effectiveness and safety remains unclear, although the jet has seemed to have gotten good reviews after several high-profile public events that it was involved in. Those being the search for MH370 and monitoring China’s island building in the South China Sea. Still, these tasks are a far cry from hunting elusive enemy submarines in all weather conditions
.
Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 

The stubby Kawasaki P-1 also features a Magnetic Anomaly Detector (MAD) boom on its tail, a feature that was dropped from the U.S. Navy’s P-8 equipment list due to cost and integration issues. The MAD is used to detect submerged submarines and many in the P-3 community were very concerned that it was omitted from the Poseidon’s final configuration, especially consider the exploding threat that submarines, especially long-diving and relatively cheap Air Independent Propulsion equipped diesel submarines, pose to American interests around the globe.





Other differences between the P-8 and the P-1 are the latter’s massive cockpit windows, which allows the pilots to become a little more engaged with surface searches. The P-1 has a bit smaller cabin than its American peer, a reality that may limit future upgrades and added capabilities, something the P-8 is already experiencing. Also, although a fresh design has clear advantages, the P-8 is a next generation 737 at heat, which means parts and support are not an issue.





The P-1 first flew in 2007 (as the XP-1) and entered limited service in 2013. It was originally designed together with another of Japan’s indigenous aircraft designs, the XC-2 (now known as the C-2) that was meant to replace Japan’s C-130s and C-1s. Although both aircraft became very different designs in the end, the C-2 and the P-1 have similar components and subsystems, which saved billions of dollars in their development.

Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 

The P-1 is really a cutting-edge design. By taking a “clean-sheet” approach, Kawasaki was able to incorporate some unique systems in the jet that help with its primary mission. The main one being a “fly-by-light” control system. This is similar to fly-by-wire but instead of traditional wiring and communications interfaces between the controls, flight control computer and control surface actuators, a fiber-optic system is used. Not only does this system help with reliability and upgrades down the road, but it also causes less electromagnetic interference with the aircraft’s sensitive mission hardware.
The P-1 has roughly similar sensor suite to that of the P-8, although the effectiveness of either one when compared to each-other remains unknown. Some of the sensors and mission equipment installed on the P-1 include a Toshiba HPS-106 Active Electronically Scanned Array (AESA) radar system which has four antennas, giving it constant 360 degree coverage. It packs a self protection suite including missile launch detectors and the aircraft also has an infrared and electro-optical turret for examining and tracking surface targets. A MAD (like the P-3 has it replaces), a LIDAR system and 30 sonobuoys ports that can be pre-loaded with room for another 60 sonobuoys stored in racks in the cabin, are all there for chasing subs. These systems are tied to a user interface in the cabin that uses intuitive control and artificial intelligence to predict a submarines movements, giving operators the best probable options for continuing to track one using the aircraft’s various systems as a single integrated force.





Other systems include a high-end communications system which includes various data-links as well as satellite communications and data exchange capability. Japan’s latest electronic surveillance measures suite for sniffing out enemy radars and electromagnetic emissions is also added. All together, these capabilities give the P-1 a secondary communications relay and information, surveillance and reconnaissance capability in a similar fashion as the American P-8.

As far as combat punch goes, the P-1 definitely has it. By not adapting an off-the-shelf design, Japan was able to create a jet optimized to carry external and internal stores, as opposed to retrofitting such a military-only capability. In total, the P-1 has 16 hardpoints, two on each wing, two on each wing root and eight in its weapons bays. As far as the weapons “menu” that the P-1 can use, it is similar to the P-8. These include AGM-84 Harpoon anti-ship missiles, AGM-65 Maverick air-to-surface missiles, Japan’s indigenously produced ASM-1C anti-ship missile, as well as various bombs, mines, torpedoes and depth charges. Like the P-8, one day the P-1 could integrate laser guided and GPS guided bombs into its quiver. Such a capability would give Japan a more persistent over-land close air support capability than their fighter jet force can provide. In this way the P-1 would work as a communications and surveillance node, as well as an arsenal ship/bomber.

Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 
Today, a couple dozen P-1s have been ordered by or delivered to Japan and after teething problems, the aircraft is rumored to perform fantastically well at its job. Still, Japan’s demand for the aircraft is limited to replacing their own P-3 fleet and seeing that the aircraft is a now an integrated weapon system that has its major bugs worked out, Japan wants to see if it can get some of the billions of dollars invested into the program back in the form of international sales. This is precisely why two P-1s will appear at the Royal International Air Tattoo (RIAT) this year, with one aircraft being shown as a static display and the other flying a routine during the air show and arms expo.
The UK’s Royal Navy in particular is in great need of a maritime multi-role aircraft. Since the Nimrod MRA4 debacle of the last decade, the Ministry of Defence has no maritime patrol and sea control fixed-wing platform, which is pretty absurd for an island country. This is especially true seeing as Russia has drastically increased its submarine patrols all around the British Isles and even has sailed its ships into the English Channel.

Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 
Current candidates to fulfill this huge capability gap include America’s P-8 Poseidon, its smaller cousin the Challenger business jet-based Boeing Maritime Surveillance Aircraft, a multi-role maritime patrol version of the C-130J known as the Sea Hercules and an Airbus C-295 configured for the maritime patrol role. Although other defense contractors will offer even more options, as of now this would put the P-1 somewhere between the P-8 and the Sea Hercules when it comes to cost and capability.
Currently, the P-1 is said to run about $140 million per copy fully outfitted (the P-8 is about $250M), but this figure could drop as efficiencies are found in producing higher numbers of aircraft at a time and as the aircraft matures. Additionally, Japan can be quite aggressive with its exports, and could even take a loss to realize a larger and more efficient total fleet size of P-1s and to get their first international customer for the type.

Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 

The UK is not the only customer out there that really needs to get into the maritime patrol game in a larger way than they currently are. Countries around the globe are finding huge capability gaps in this space. Asia especially, with its growing territorial tensions should see the multi-role maritime aircraft marketplace explode in the coming decade.

Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 

When you look at the P-1 and the P-8 closely you realize that the U.S. and their close ally Japan basically built similar aircraft for almost the identical mission. It is unfortunate that they could not work together on a common design. With a little foresight, who knows? We could be seeing P-1s with U.S. Navy titles on their wings today.
In the end the marketplace will tell if the P-1 offers enough extra capability at the right price to bring in the big defense bucks from abroad, but out of all the aircraft on the market in its mission-space, it is the only clean-sheet, totally purpose-built design. In this day and age of multi-role everything, where manufacturers constantly shoehorn disparate capabilities into a few common designs, that has to be worth something. 

Japan's Totally Original Maritime Patrol Jet Is Hunting For Buyers 

Photos via: Wikicommons: Top shot- Ken H / @chippyho, side shot of 5501 Toshiro Aoki, XC-2-Richard Vandervord. P-8 and P-1 via USN, Sea Hercules concept via Lockheed. All other shots via Japanese Government/MoD

 The National Interest

5 Most Lethal Russian Submarines

The Russian bear is certainly deadly below the waves.





During the Cold War, the Soviet submarine program was a force to be reckoned with. The U.S.S.R.’s underwater killing machines captured the imagination of Westerners and Soviet citizens alike. Tom Clancy’s 1984 novel (adapted as a film the following year) The Hunt for Red October depicted a daring attempt by the crew of a fictitious Soviet Typhoon Class ballistic missile submarine to defect to the United States. In the tense years of confrontation between Washington and Moscow, many Americans imagined Soviet submarines lurking off the country’s coastlines. Submarines granted both superpowers the ability to unleash nuclear Armageddon from the quiet sanctuary of the ocean depths.
After the collapse of the Soviet Union, the Russian submarine program fell into decline along with many other branches of the Russian military. In the past decade, however, Russian officials have undertaken efforts to modernize their armed forces. From upgrading Cold War models to meet present-day challenges, to designing completely new platforms like the Borei and Yasen Class submarines, Russia is clearly determined to renew the status and capabilities of its underwater fleet.
Here are the five submarines that deserve particular attention.
Akula Class Submarine
Built in the Soviet Union as the Bars Class 971, this nuclear-powered attack submarine is better known by its NATO reporting name “Akula.” While the Akula cannot run as quietly as some of its Western counterparts, it remains a credible threat, especially after a series of upgrades in the aftermath of the Cold War.
The Soviet Navy commissioned seven Akula I models between 1986 and 1992. Between 1992 and 1995, Russia commissioned between two and four upgraded Akula I subs. Moscow had already set about designing a more comprehensive upgrade, dubbed Project 971A—the Akula II. This upgrade featured an extended hull length of 110 meters and an improved displacement of 12,770 tons. The enhanced design also incorporates a quieter engine than its predecessors, making the Akula II Russia’s quietest submarine design. Russia built three such vessels: the Viper (commissioned 1995), the Nerpa (2000), and the Gepard (2001). Moscow is expected to keep the Gepard in its arsenal until at least 2025 while the Nerpa is being leased to India.
For surface cruising, the Akula reaches speeds of up to 10 knots. Once underwater, this submarine can achieve speeds of up to 33 knots while diving as far as 600 meters. Once deployed, the Akula has an endurance of 100 days. The Akula is armed with a variety of anti-ship, anti-sub, and anti-surface weapons, allowing it to complete a range of missions. One Akula class submarine can carry as many as 12 Granit cruise missiles, which come in anti-ship and land attack variants. The Granit missile has a range of 3,000 kilometers. For anti-ship and anti-sub operations, the Akula I has eight torpedo launch tubes, while the Akula I Improved and Akula II have ten. The Strela SA-N-5/8 portable launcher with 18 missiles gives the Akula class an anti-air capability as well.
Kilo Class Submarine
Conceived during the Soviet era at Rubin Central Maritime Design Bureau at St. Petersburg, Russia’s Project 877 Paltus (NATO reporting name “Kilo”) is a diesel-electric powered attack submarine. First commissioned by the U.S.S.R. in 1982, the Kilo remains in service in Russia and around the world.
The Kilo is a smaller submarine, with the Iranian version boasting an underwater displacement of 3,076 tons and hull length of 70 meters. The basic Kilo model contains six torpedo launch tubes. This platform can be used for systems like the TEST-71MKE TV electric-homing torpedo, which carries a 205 kilogram explosive charge. The Kilo can also release up to 24 mines. Eight anti-aircraft missiles can be fitted to the Kilo, which is compatible with both the Strela-3 and Igla surface-to-air systems. India, which also uses the Kilo, contracted the Russian shipyard Zvezdochka to add anti-ship missiles like the Klub S (range: 220 kilometers) to its models.
The Kilo’s diesel generators give the submarine a speed of up to 10 knots for surface cruising and 17 knots submerged. The Kilo can dive as far as 300 meters below the waves and has an endurance of 45 days. Post-Soviet Russia still uses the Kilo, while the model is also in service in countries like China, India, Iran, and Algeria. Two ex-Warsaw Pact NATO members, Poland and Romania, also use the Kilo.
Type 636.3 Varshavyanka (Improved Kilo)
When Russia’s new diesel-electric Lada submarine failed its sea trials in 2010, Moscow turned to a Cold War classic: the Kilo. To fit the niche for a modern diesel-electric attack sub, Russia set about upgrading the earlier Kilo model.
Enter the Type 636.6 Varshavyanka, also known in the West as the “Improved Kilo.” Originally intended as an intermediate step between the original Kilo and the Lada, the Varshavyanka will have to fill the gap until the new models are deemed seaworthy. The Russian Navy commissioned six such vessels, four of which have been launched. The newest, Krasnodar, was launched in April 2015.
With a displacement of up to 4,000 tons submerged, the Varshavyanka serves as a platform for a powerful weapons suite. Like its predecessor, the Improved Kilo has six torpedo launch tubes and is armed with surface-to-air missiles like the Strela-3 and Igla. The newer Type 636.6 model also carries anti-ship missiles like the Novator Club-S. This missile, tipped with a high-explosive warhead, has a range of 220 kilometers.
Like the original Project 877, the upgraded Kilo has an endurance of 45 days and a maximum diving depth of 300 meters. The Improved Kilo boasts higher speeds than its predecessor: 11 knots at the surface and 20 knots underwater. A silent killer, the upgraded model is already viewed as one of the quietest diesel-electric submarine models in service. Still, the Rubin Design Bureau is exploring ways to fit the Varshavyanka vessels with an Air-Independent Propulsion system, which has the potential to run quieter than even a nuclear power plant.
Borei Class Submarine
The first completely new Russian submarine model designed since the fall of the Soviet Union, the Borei Class is a series of nuclear powered ballistic missile submarines. The lead ship in this new class, the Yury Dolgoruky was launched in 2008 and commissioned in 2013. A second Borei class sub was launched in 2010 and commissioned in 2013. A third was launched in 2012, while the newest vessel, the Knyaz Vladimir, was laid down earlier that year. Moscow hopes to replace its aging fleet of Soviet-era Typhoon and Delta III submarines with the new Borei class model.
The Borei Class hull length is 170 meters, and each submarine has a submerged displacement of 24,000 tons. Yury Dolgoruky and its sister vessels carry 16 RSM-56 Bulava submarine-launched ballistic missiles. Bulava missiles are tipped with a 150 kiloton yield nuclear warhead and have a range of 8,000 kilometers. Some reports indicate the RSM-56 may have a longer range and more destructive capability: up to 10,000 kilometers and a 500 kiloton yield. In addition to its ballistic missile payload, the Borei Class craft also come with six torpedo launch tubes, which can be fitted with a range of anti-submarine warfare torpedoes.
The nuclear power plant onboard Borei Class submarines grants the vessels a surface speed of 15 knots and a submerged speed of 29 knots. The vessels have a maximum diving depth of 480 meters and an endurance of 100 days. Borei Class submarines promise to provide the Russian Navy with a potent long-range capability for years to come. Already, Moscow has placed an order to receive 10 new vessels by 2020.
Yasen Class Submarine
Sevmash Shipyard’s Project 885 Yasen is Russia’s response to an aging fleet of Akula class submarines. This nuclear powered model will eventually replace Soviet-era designs and service Moscow’s need for a capable attack submarine. The first Yasen class sub, the Severodvinsk, joined the Northern Fleet, based in Severomorsk, in 2014.
Yasen class submarines have a hull length of 111 meters and an underwater displacement of around 13,500 tons. Each Project 885 vessel can carry weapons designed to hit land targets, surface craft, and other submarines, allowing the Yasen class to carry out a range of missions. To conduct anti-submarine operations, the Yasen class comes equipped with eight torpedo launch tubes and can fire ASW missiles like the long-range supersonic P-800 Oniks.  Oniks missiles can also be deployed as an anti-ship weapon. For targets on land, the Yasen Class submarines can launch 3M51 cruise missiles, which can be tipped with a nuclear warhead. 3M51 missiles have a range of 800 kilometers.
The powerful nuclear propulsion systems onboard Yasen class submarines allow the new models to greatly outpace their predecessors. Project 885 subs can achieve speeds of 20 knots at the surface and 35 knots submerged. Yasen class vessels can slip over 600 meters beneath the waves, rendering them an ever more potent threat to Russia’s rivals.
Evans Gottesman is a research assistant at The National Interest


Russia's Black Sea submarine fleet is getting a serious upgrade


Business Insider



Admiralty Shipyards Launches Sub Krasnodar
(Admiralty Shipyards) The Krasnodar 

Russia is making moves to revive and increase the size and scope of its Black Sea submarine fleet, the Russian Ministry of Defense stated.  Russian Navy Admiral Viktor Chirkov stated during a meeting with the Main Naval Command in Saint Petersburg on Monday that he believes that the submarine fleet will be "revived" and ready for action by 2016.
The submarines will be based at the Novorossiysk port on the Russian mainland across from the Crimean peninsula.
The submarine fleet will be augmented by the inclusion of six new diesel-electric submarines that Russia has been phasing into service since 2014.
“The construction of 6 diesel-electrical submarines (project 636) for the Black Sea Fleet is under the control of the Main Navy Command. 'Novorossiysk' and 'Rostov-on-Don' submarines were put into service in 2014," Chirkov said. "'Krasnodar' submarine will join the Navy by the end of 2015.”
Three other submarines will additionally be added to the fleet by the end of 2016. The submarines of project 636 have been designed to excel at warfare in shallower water while being arguably the quietest submarines in the world. 
“The formation will consist of a group of 636 submarines, which have a large sea endurance, modern weapon systems, effective radio and navigational systems,” Chirkov said.



black sea
(Wikipedia) 

The project 636 submarines are Varshavyanka-class vessels, which are upgraded versions of Russia's previous Kilo-class submarines. Although Varshavyanka-class submarines can not dive as deep or stay submerged underwater as long as nuclear submarines, they are nearly impossible to detect acoustically. Primarily, the Varshavyanka-class submarines will be used for anti-shipping and anti-submarine warfare in shallower water. According to Naval Technology, the submarines can cruise for a range of 400 miles, can patrol for 45 days, and carry surface-to-air missiles and torpedoes.
The mixture of weaponry onboard the submarines allow the vessels to hypothetically strike both a mixture of land, sea, and underwater targets.  



Russian Navy Submarines
(Anton Egorov) 
 The revival of the Black Sea fleet coincides with Russia's general drive to modernize its submarine assets as a whole. In addition to the Black Sea, Moscow plans on adding an additional 14 to 18 diesel-electric submarines similar to Lada-class subs over the next 15 years throughout the Russian fleets. 
The Kremlin also plans to replace its Delta III and Delta IV-class subs with Borei II submarines in the coming years. The Oscar II-class sub will be replaced with the entirely new Yasen submarine class after 2020. 




With new paint and grease, Navy tries to lengthen subs' life


Associated Press





In this Thursday, July 30, 2015 photo, shipyard workers at General Dynamics Electric Boat prepare the submarine Illinois for float-off in Groton, Conn.  The U.S. Navy is using a new painting process and dozens of other innovations aimed at reducing the maintenance needs for attack submarines, which are coming out of service faster than they can be replaced. (AP Photo/Jessica Hill)
GROTON, Conn. (AP) — As it tries to get the most out of each of its $2.6 billion attack submarines, the U.S. Navy is finding a lot depends on the right paint job.
A new painting process that helps keep marine life from fouling the hulls is among dozens of innovations aimed at reducing the maintenance needs for attack submarines, which are coming out of service faster than they can be replaced.
"They're not very glamorous but they're huge in terms of payback to the fleet," said Navy Capt. Mike Stevens, a manager for the Virginia-class submarine program at Naval Sea Systems Command.
The changes were developed by private and government shipyards in response to a request from the Navy, which wants to squeeze more service life out of each vessel. In addition to the paint, updates include water-resistant grease for hatches, a special coating on the metal rods that extend the bow planes to minimize deposits, and redesigned water-lubricated bearings to improve support of the propeller shaft.
The goal is for the submarines eventually to go eight years between lengthy and expensive major overhaul periods, up from six years currently.
The USS Virginia was commissioned in 2004, and 12 others in its class are already in service. The country is now building two a year to replace the aging Los Angeles-class attack subs. The nuclear-powered Virginia-class subs, which typically deploy for six months at a time, are capable of conducting surveillance in shallow waters and firing missiles among other missions and are expected to have service lives of about 33 years.
While the submarine force says the demand on its 53 attack subs already exceeds their availability, the number in the fleet is projected to continue a post-Cold War decline and bottom out with 41 in 2029 before it begins rising again due to ramped-up construction, according to the Navy's shipbuilding plan.
The design changes are intended to reduce costs and increase the number of combat deployments.
"We want them to spend as much time at sea as possible," Stevens said.
In Quonset Point, Rhode Island, where the submarines are painted, the Navy has invested in facilities to apply anti-fouling paint more rigorously during construction. During overhauls, the Navy also has adopted powder-coat, high-gloss paint applications that hold up better under water and require less maintenance, Stevens said.
At Electric Boat, the Groton-based submarine builder, workers tasked with finding ways to reduce maintenance needs came back with 800 ideas. Those were whittled down to 128 ideas that were recommended to the Navy, said Ken Blomstedt, the company's Virginia-class program manager.
Nearly all of those changes have been incorporated into the design of submarines that are now in the beginning stages of construction, Blomstedt said. One challenge, he said, was ensuring that the submarine's sophisticated capabilities were not compromised.
"That tenet of maintaining combat capability was first and foremost," he said.


USS John Warner Shows Off Jumbo Missile Tube During Comissioning


Tyler Rogoway

Filed to: Subs 8/04/15 8:47pm




The Virginia Class fast attack submarine, the USS John Warner, was just commissioned into service. She is the second Block III Virginia Class boat to be produced, and has a pair of new huge Virginia Payload Tubes on her bow. These replace twelve individual vertical launch tubes used to fire Tomahawk missiles in previous Virginia Class boats.

As you can see in the photo above this is a new capability that the Navy is proud to showcase.



You can read all about this new vertical launch system and the John Warner here, but to put it simply, the Virginia payload tubes’ large diameter and modular nature allows it to be adapted to larger diameter missiles in the future, breaking the previous 533mm diameter restrictions of the Tomahawk cruise missile. This will allow Virginia class submarines to more easily field emerging technologies, like hypersonic long-range missiles and it could even be used to launch and recover large autonomous unmanned underwater vehicles that can come and go for days, or even weeks at a time.


This Dolphin Is The Perfect Chaperone For The Navy's Newest Submarine

America’s newest nuclear submarine, the USS John Warner (SSN-785), has successfully completed its… Read more

The Virginia Payload Tubes are an innovation that came from the Navy’s brilliant decision to reconfigure their oldest four Ohio Class SSBNs into conventional missile arsenal ships and special operations platforms. This saw the Ohio’s rows of Trident Ballistic Missile launch tubes being converted into launchers that hold clusters of seven Tomahawk Cruise Missiles each. Now the Navy is looking toward this capability to offset the drastic loss of deployed cruise missiles when the reconfigured Ohio Class SSGNs begin retiring in the the coming decade.


The Ohio-Class Guided Missile Nuclear Submarine Is One Dangerous Beast

Four of the U.S. Navy’s gargantuan Ohio-class ballistic missile nuclear submarines, otherwise known … Read more

This will see the fifth block of Virginia Class boats getting an addition four of these tubes grafted on to their hulls behind their sail. This initiative and light redesign is referred to as the Virginia Payload Module. These four additional tubes will add another 28 Tomahawk Cruise Missiles to the majority of the yet to be produced Block V Virginia Class boats.



Because of these new tubes intercontinental ballistic missile-like diameter, one could wonder if a ballistic missile armed Virginia Class could be in the Navy’s future. It would be at least one way to help with what is a growing possibility of a nuclear deterrent shortfall if the already cash strapped Ohio Class SSBN replacement does not go exactly as planned.

Yet even if the Virginia Class Block III, or more relevantly Block V boats were capable of wielding SLBMs, it would lock them into a very different mission set then the wide array of roles they were designed for today. Instead of collecting intelligence, launching frogmen in mini-submersibles and hunting for other submarines and for surface targets, a nuclear ballistic missile armed Virginia Class would be tasked with just hiding for long periods of time.


Is This Semi-Autonomous Mini Submarine The SEALs' Next Super Weapon?

U.S. Navy SEALs have to infiltrate and exfiltrate from some of the most hostile areas on earth, and … Read more

Yet some say that the near invulnerability that the American SSBN has enjoyed for decades will erode in the coming years. As such, putting the nuclear ballistic missile capability on multi-mission subs, and building many more of them, may make more operational and fiscal sense than rebuilding a traditional stand-alone nuclear deterrent submarine force.

Regardless of if the Virginia Class could carry ballistic missiles or not, new boats in the class going forward will be more reliable, upgradable and flexible than their predecessors because of this new launch system.

 http://nextbigfuture.com/

August 19, 2015


US Navy will have squadron of large robotic submarines by 2020 and mass production in 2025


The Navy will building prototype large robotic submarines in 2015-2016 and testing in 2018. According to the Navy's ISR Capabilities Division, LDUUV will reach initial operating capability as a squadron by 2020 and full rate production by 2025.

The US Navy has released requirements for its long duration large robotic submarine. (LDUUV - Large Displacement Unmanned Underwater Vehicle)

The Navy wants two things in the first version.

1) “intelligence, scouting, and reconnaissance” underwater, which means the combined jobs of watching an area for potential threats and then sending back useful information to people on shore.

2. “Intelligence Preparation of the Operational Environment.” Observing a battlefield and evaluating enemy options in war, to (in peacetime) exploring potential threats and courses of action.

The LDUUV as an underwater scout and spy, a submarine whose sensors will collect data to help build a better understanding of what future naval wars could look like.

Future robot subs will be used as
* underwater minesweepers
* launch flying scout drones that scan above the surface of the sea
* “deploy payloads” such as shooting torpedoes or missiles.

The LDUUV can be launched from drydocks, Virginia-class submarines, and the Littoral Combat Ship.


















U.S. Subs Play a Dangerous Game of Hide-and-Seek With China

And it's about to get more dangerous.

Don't look now, but China has a new warship in its fleet. It's tailor-made for hunting U.S. submarines -- and just might give us a clue as to what defense contracts will be coming out of the Pentagon next.

G

China's new Type 056-class corvette. Image source: Hudong Zhongua Shipbuilding Group.
As reported earlier this week by The National Interest magazine, China has churned out "nearly 20" of these new antisubmarine warships in less than five years. Described as "small, cheap, versatile, rugged and well-armed," the Type 056 patrol ship is designed "to show the flag in proximate maritime disputes," says the magazine.
But the Type 056 carries more than just flags:
  • It has a flight deck capable of carrying the new Z-18F submarine-hunting helicopter.
  • It sports variable-depth sonar capable of searching for submarines hiding beneath thermal layers in the ocean.
  • It's expected to carry a new type of "homing" depth charge alongside antisubmarine guided missiles.
The common theme running throughout all this is, of course, the word "submarine." Indeed, the Type 056 is designed from the keel up to hunt U.S. nuclear submarines operating in the South China Sea. (A new Type 055 guided missile destroyer is said to be in the works as well. It will have much the same mission as the Type 056 -- but carry twice as many helicopters.)

G
Chinese naval bases are starting to fill up with warships at ASW 
aircraft. Satellite view of the Qingdao Naval Base, via Google Earth.

Plugging the gaps in China's Great Wall of Defense
Why the sudden emphasis on antisubmarine warfare, or ASW? The answer begins in March 1996, when the U.S. responded to China's conducting of amphibious assault exercises off the coast of Taiwan by sending an aircraft carrier battle group into the Taiwan Strait.
China didn't like that one bit. And ever since, it's been working to expand its security envelope, and make it harder (and more dangerous) for U.S. forces to enter a region that China considers its own private sphere of influence.
In the years since, China has invested heavily in building up its surface navy and its submarine forces, and has even bought an aircraft carrier. It developed the DF-21D ballistic missile -- China's so-called "carrier killer" -- to force the U.S. Navy to think twice about sending $14 billion supercarriers into harm's way.
To deal with America's development of stealthy warplanes that might launch from outside the range of shore-launched DF-21Ds, and use refueling tankers to penetrate Chinese airspace, China developed new radar systems. According to China, at least, these radars can detect stealth aircraft at distances of up to 360 miles.
Development of the Type 055 (and Type 056) warships is therefore just the next step in a 20-year effort by China to secure its borders and keep America's military at bay. With the threat of U.S. aircraft and their carriers now minimized, the People's Liberation Army Navy is tackling the problem of stealthy nuclear submarines.
What comes next?
All of which is, of course, fascinating in a geo-politico-military sense. But what does it mean to investors? Well, now that we know where we are in the game of move, countermove, counter-countermove, we can next make an educated guess as to how the U.S. might respond to China's new ASW capabilities.
Logically, the U.S. Navy has two responses it can make to China's Type 055 and Type 056 warships. First, the U.S. can develop new missiles to threaten China's warships. (And in fact, the Navy is doing that.) Second, the Navy could develop new submarines that it can afford to risk losing -- and we're doing that, too.
Earlier this year, we reported on the U.S. Navy's Large Displacement Unmanned Undersea Vehicle, or LDUUV, program, which aims to develop robot submarines that can be used in naval warfare. Major defense contractors have been enlisted in the effort. Indeed, Boeing's (NYSE:BA)new five-ton Echo Ranger autonomous underwater vehicle appears designed with the LDUUV program in mind. While not necessarily more survivable than our existing submarine fleet, Boeing's robotic submarines, being unmanned, would at least be expendable.
Last month, the Navy doubled down on this effort, awarding contracts worth up to $1.4 billion to a team of contractors -- Harris Corporation (NYSE:HRS) and SAIC (NYSE:SAIC) among them -- to develop new "unmanned maritime systems." Precisely what work Harris and SAIC are doing for the Navy hasn't been revealed, but the size of the contract alone speaks volumes.
Going forward, we'll want to keep our eyes open for more developments on this front. Despite the large sums being expended, the Navy is still in the early stages of developing an unmanned underwater military capability. In years to come, however, this ability will only grow -- as will the values of the contracts, and the profits of the defense contractors working on them.

Yellow Submarine
Will the submarine force of the future look something like this? 
If the U.S. Navy gets its way, it might. Image source: U.S. Navy.

The National Interest

Russia vs. America: The Race for Underwater Spy Drones




Russia is developing a family of unmanned surface and underwater vehicles, a high-ranking official in that country’s navy said this week. While the U.S. Navy has been developing naval drones for more than a decade, this is the first indication that Moscow is working on similar capabilities.
“Work will be continued in 2016 to develop unmanned boats that can be based both on ships and on the shore," Vice Adm. Alexander Fedotenkov, deputy commander-in-chief of the Russian Navy told the TASS news agency on Jan. 21.
The Russian developments include autonomous long-range reconnaissance vehicles. But it’s not clear if the Russian navy is developing an autonomous underwater vehicle or a surface vessel. It is possible that the Russians are developing both—but a long endurance unmanned underwater vehicle would make more sense from a military standpoint for its ability to avoid detection. Fedotenkov said that Russia is also working on developing tethered unmanned underwater vehicles (UUV) that could undertake complex operations at great depths.
While both the U.S. Navy and Russia are developing naval drones, the technology is in its infancy. The U.S. Navy is relying on commercially available drones until the technology matures. USS North Dakota (SSN-784)—a Virginia-class nuclear attack submarine—launched and recovered a Norwegian-built Remus 600 while submerged for the first time during the summer of 2015. “This was something they thought we could go do. We went out, and we proved that,” North Dakota’s commanding officer, Capt. Douglas Gordon, said at the time.
While the technology is still in the early years, UUVs show great promise for the future. A few months I ago I asked naval expert Bryan Clarke, a senior fellow at the Center for Strategic and Budgetary Assessments, what the potential applications are for such systems might be. This what he e-mailed me:
“The Department of Defense (DoD) has pursued a large variety of UUVs during the past decade, mostly for mine clearing and ocean surveillance and launched from surface ships or shore. These applications did not require particular sizes of UUVs. As UUVs become more integrated with submarines as part of a family of systems, the Navy should focus on UUVs that can use the submarine’s ocean interfaces and conduct the most likely UUV missions. Specifically, the Navy should pursue the following UUV types as part of its undersea family of systems:
“Micro UUVs (about 6” or less in diameter) are inexpensive and improving in their endurance and on-board power. They could be procured and deployed in large numbers or swarms as weapons, to survey the ocean floor, or interfere with enemy ASW operations.
“Small UUVs (about 12” in diameter) are commonly used today for surveys and minehunting, such as the Navy’s Mk-18 UUV. They will be able to take on other surveillance or attack missions as part of the Fleet Modular Autonomous Undersea Vehicle (FMAUV) program and operate from submarines as well as surface ships and aircraft.
“Medium UUVs (about 21” in diameter) are the size of the Navy’s Mk-48 submarine-launched torpedo. And while the Navy is not operating UUVs of this size today, the Modular Heavyweight Undersea Vehicle (MHUV) program plans to make the torpedo of the future able to be configured to conduct a range of missions, from mining and long-range attack to electronic warfare.
“Large UUVs (about 80” in diameter) such as the Navy’s Large Displacement UUV (LDUUV) are designed to use the planned Virginia Payload Module (VPM) tubes in Block V Virginia-class submarines. The LDUUV will provide a way for submarines to increase their sensor reach, expand their payload capacity, or deliver payloads into areas that are too risky or constrained for the submarine to reach.
“Extra-Large UUVs (More than 80” in diameter) would be designed to launch from shore or very large ships with well decks or “moon pools.” They could be used for long-endurance surveillance missions or primarily as “trucks “ to deliver other payloads and UUVs. Experience with LDUUV will help inform concepts for using XLUUV.”
Essentially—once perfected—unmanned underwater vehicles could revolutionize naval warfare. But only time will tell.
Dave Majumdar is the defense editor for the National Interest. You can follow him on Twitter: @davemajumdar.
Image: Flickr/Office of Naval Research/U.S. Navy/John F. Williams.

 The National Interest

The Hunt for the Next Red October: Russia's Lethal New Subs



Though the Project 705 Lira-class attack submarine—better known in the West as the Alfa-class—is perhaps most famous for starring as the main antagonist in the movie The Hunt for Red October, the ill-fated boats have left an outsized legacy independent of the silver screen. That’s because Moscow’s future submarine fleet will be far more automated than current designs—continuing a trend that was pioneered in the late 1970s by the Soviet Union’s Project 705 Lira-class attack boats.
While the Alfa-class boats were in many ways an unsuccessful experiment, the fast titanium-hulled submarines pioneered many innovative technologies. Their strong hulls gave them tremendous speed—close to 45 knots according to some sources—and they could dive to impressive depths. Indeed, the Liras had a never-exceed depth of around 3,900ft, but operationally rarely exceeded 2,000ft. Moreover, the submarines were relatively tiny—displacing only 3,200-tons submerged.
Other than the titanium hull—which was a huge innovation for the time—the Lira-class boats featured two other innovations. One was a very compact liquid-metal cooled reactor, which could generate enormous amounts of power. In all, two types of lead-bismuth cooled fast reactors were used on the Lira—the OK-550 and BM-40. Both reactors produced about 155-MW of power giving the boat more than 40,000shp. The result was blistering speed and acceleration—but at the price of being extremely noisy (though the boats had a pair of 100kW electrical propellers for low speed tactical maneuvering).
The other major innovation introduced by the Lira-class was automation. Because the Soviet wanted a small, fast interceptor submarine, a small crew-size was mandatory. The Soviets did manage to reduce the crew-size to about thirty-two officers, but no enlisted crew. Ultimately, however, the Lira-class was a technological bridge too far—safety was a major concern. “We spent twenty years using the Lira (Project 705) subs during the 1970s through 1990s. . . . It was a very promising project but it was eventually shelved due to the abundance of new technological ideas simultaneously implemented in one boat,” Lenta.ru quoted an unnamed defense source, according to state-owned Sputnik.
But while the Lira was a failure, the technology from those boats paved the way for the later Sierra (Project 945) and Akula-classes (Project 971Shchuka-B), and ultimately the Project-885 Yasen-class (Severodvinsk-class submarine). Indeed, compared to U.S. Navy submarines, the Russian submarines have a very small crew-size. The Yasen-class only carries ninety crew members while future Russian nuclear submarines such the new “interceptor” and “SSGN” designs that are currently in the works will have fewer still. “The crew of such a sub could be down to 50 or 55 people and could ultimately be reduced to between 30 and 40,” the source told Lenta.ru.
Of course, given Russia’s economic conditions, it is hard to say when those new submarines will materialize—if they ever do.
Dave Majumdar is the defense editor for The National Interest. You can follow him on Twitter: @davemajumdar.
Image: Wikimedia Commons/Alex Omen.

 

Japan's Soryu-class submarine, described as the world's largest
conventionally powered submarine. 
Japan Maritime Self-Defense Force photo
KOBE, Japan, March 7 (UPI) -- Mitsubishi Heavy Industries reports its delivery on Monday of its fourth Soryu-class submarine to Japan's Ministry of Defense.
Japan currently has seven of the submarines.
Soryu-class submarines are the world's largest conventionally powered submarines, equipped with state-of-the art technologies, including air-independent propulsion systems.
The submarines are 274.5 feet long, about 29.8 feet wide, and have a maximum speed of 20 knots.
The submarine delivered on Monday -- the Jinryu -- was the fourth Soryu-class vessel by MHI, which has manufactured a total of 26 submarines at its Kobe facility over the past 70 years.

http://nextbigfuture.com/

March 06, 2016

India commissions their first nuclear armed submarine the 6000 ton INS Arihant


India's first nuclear armed submarine, Arihant, is now ready for full fledged operations, having passed several deep sea diving drills as well as weapons launch tests over the past five months and a formal induction into the naval fleet is only a political call away.

The Arihant, which is the first of five nuclear missile submarines or SSBNs planned for induction, has also undergone deep sea dives off Vishakhapatnam where it was build. A Russian diving support ship —the RFS Epron that arrived on October 1 — has been accompanying the Arihant on its deep sea dives and launch tests, officials told ET.

The submarine is to be equipped with K 15 (or BO-5) shortrange missiles with a range of over 700 km and the K 4 ballistic missile with a range of 3,500 km. "It has passed all tests and in many things has surpassed our expectations.

Work is already in progress on two more Arihant class submarines at the Ship Building Center (SBC) in Vishakhapatnam which will be larger and more advanced than the first boat. The navy is also accelerating work on INS Varsha - a new strategic naval base with underground pens on the Eastern Coast near Kakinada - where the nuclear assets would be based.



The 6,000 tonne vessel is 111 meters long.

The Navy's Submarine Design Bureau is also presently working on a new class of nuclear powered attack submarines (SSNs).

The deployment would complete India’s nuclear triad, which means that it could deliver atomic weapons from land, sea and air. Only the U.S. and Russia are considered full-fledged nuclear triad powers now, with China and India’s capabilities still largely untested. India would become the sixth country to have nuclear-armed submarines in operation, after the US, UK, France, Russia and China.

INS Aridhaman is the second Arihant-class submarine. She will be the second nuclear-powered ballistic missile submarine being built by India. This submarine will have double the number of missile hatches than its predecessor INS Arihant giving it the ability to carry more missiles. This will have a more powerful reactor than its predecessor. It should be commissioned in 2018. It should be launched this year for trials
SOURCES - Economic Times, Wikipedia

http://www.gizmag.com/

HMS Artful uses new "brain" to fire torpedo

HMS Artful recently carried out a successful missile test using its new Common Combat System
HMS Artful recently carried out a successful missile test using
 its new Common Combat System (Credit: Crown Copyright)

The Royal Navy's latest and most advanced nuclear submarine, HMS Artful, has successfully fired its first test torpedo using a state-of-the-art "brain." According to the British Ministry of Defence, the 7,400-tonne (8,157 ton) hunter-killer used the new Command Combat System (CCS) to integrate data from its suite of sensors to track and hit the moving target with an unarmed practice weapon. The Artful is the third of the Astute class submarines and is the first to have the CCS installed.
It wasn't that long ago when the most sophisticated computer aboard a submarine was the Apple II in the Paymaster's office. Now, the likes of the RN's Sonar 2076 alone has the processing capacity 60,000 present-day PCs. This and other sophisticated digital systems mean that today's submarine captains need equally sophisticated command systems to turn all that data into meaningful action.
Designed by BAE Systems and constructed by VMware, Dell, and Aish in the UK, the CCS is described by the makers as a "step change" in combat information processing technology. It uses off-the-shelf components for greater design flexibility combined with new algorithms to gather data from many different sensors and other systems that make up the "nervous system" of the boat, turning them into a single computer environment instead of being read and controlled from many different places.

According to the RN, this not only makes processing the data more efficient, is also allows for directly control of the sensors and weapons, as well as saving the one premium item on any submarine – space. The CCS can directly interpret the data coming from the 13,000 hydrophones of the Sonar 2076 and track targets while leaving the crew to concentrate on command decisions.
The RN says that the CCS was originally slated for installation on the fourth Astute class submarine, but work was completed ahead of schedule and Artful was chosen instead. The CCS will be retrofitted to previous boats in the series, as well as to the fleet's Vanguard class nuclear missile submarines, the remaining four of the Astute class currently under construction, and the next generation of RN submarines.
















HMS Artful (PDF) was handed over to the RN in December by BAE Systems. As one of the most advanced submarines in the world, it can go its entire service life without refueling and its sensors are claimed to be able to detect and track the quietest of hostile vessels. The vessel is undergoing sea trials until July, after which it will carry out maintenance and training in anticipation of active duty.
Source: Ministry of Defence
  

No comments:

Post a Comment