Russia Launches "Quietest Sub"

[warrior1972]

Russia has launched what it claims to be the “quietest submarine in the world.”

This week, Admiralty Shipyards—a Russian defense company— held a ceremonial launching for its newest Varshavyanka-class diesel-electric submarines. Dubbed the Krasnodar, the vessel is the fourth of a planned six upgraded Kilo-class subs Russia is constructing under Project 636.3.


According to the company’s website, the commander of Russia's Navy, Viktor Chirkov, attended the ceremony, which was held in St. Petersburg on Saturday.

Previously, Russian state media outlets have said that the Varshavyanka-class are the “quietest in the world, and so was dubbed ‘black hole’ by NATO.”




nationalinterest.org/blog/the-buzz/russia-launches-quietest-submarine-the-world-12765

[dustdevil28]

The worlds quietest sub is diesel electric?

-DD

[warrior1972]

Jul 8, 2015 16:05:28 GMT -8 dustdevil28 said:

The worlds quietest sub is diesel electric?

-DD

YES, DIESEL-ELECTRIC.


For instance:



"According to the defense officials, the Chinese Song-class diesel-powered attack submarine shadowed the Kitty Hawk undetected and surfaced within five miles of the carrier Oct. 26."

The Washington Times - Monday, November 13, 2006

Read more: www.washingtontimes.com/news/2006/nov/13/20061113-121539-3317r/#ixzz3fLpGGTel
Follow us: @washtimes on Twitter


There ARE high-technology ultra-quiet Diesel Electric submarines.

www.nationaldefensemagazine.org/archive/2008/April/Pages/AntiSub2301.aspx


“The beauty about a diesel submarine is that it has the potential to be far quieter than a nuclear submarine,” says Guy Stitt, president of AMI International, a Bremerton, Wash.-based company specializing in naval market analysis. Diesel boats are propelled by batteries when submerged and move through the water by diesel engines when on the surface.

Once they have powered up their batteries, the submarines can sail to the bottom of coastal waters and remain undetected for days. Though they can’t travel long distances or sail very quickly, advancements in technologies, such as air-independent propulsion and fuel cells, have allowed diesel submarines to extend their operational ranges underwater.

But perhaps their best selling point is their relatively inexpensive price tags. The Russians have sold diesel submarines for as little as $200 million and the French have exported their Scorpene submarines for $300 million.



www.strategypage.com/htmw/htsub/articles/20121219.aspx


December 19, 2012: The U.S. Navy continues to debate the issue of just how effective non-nuclear submarines would be in wartime and whether the U.S. should buy some of these non-nuclear boats itself. This radical proposal is based on two compelling factors. First, the U.S. Navy may not get enough money to maintain a force of 40-50 SSNs (attack subs). Second, the quietness of modern diesel-electric boats puts nuclear subs at a serious disadvantage, especially in coastal waters. With modern passive sensors, a submerged diesel-electric sub is often the best weapon for finding and destroying other diesel-electric boats. While the nuclear sub is the most effective high seas vessel, especially if you have worldwide responsibilities and these nukes would have to quickly move long distances to get to the troubled waters, the diesel electric boat, operating on batteries in coastal waters, is quieter and harder to find.



And one last thing.

Israel's sea-based portion of their nuclear deterrent is on Diesel-Electric submarines.

en.wikipedia.org/wiki/Dolphin-class_submarine


Each submarine is fitted with 6 × 533 mm (21.0 in) torpedo tubes, and 4 × 650 mm (26 in) torpedo tubes.[7] The very large 650 mm tubes can be used for laying mines, larger submarine-launched cruise missiles, or swimmer delivery vehicles, and with liners the tubes could be used for standard torpedoes and submarine-launched missiles. According to the German Defense Ministry the 650 mm tubes are to have a liner installed for firing 533 mm UGM-84 Harpoon missiles although the Dolphin class already has six tubes of the 533 mm size.[40] The boats are armed with Atlas Elektronik DM2A3 torpedoes using wire-guided active homing to deliver a 260 kg (570 lb) warhead at a maximum speed of 35 knots (65 km/h; 40 mph) to a target over 13 km (8.1 mi) away, in passive homing mode a speed of 22 knots (41 km/h; 25 mph) and a range up to 28 km (17 mi) is possible. A wet and dry compartment is installed for deploying underwater special operations teams.[7] Israel also has procured the DM2A4 torpedo, successor to the DM2A3, which is electrically propelled, equipped with fiber optic communications and has countermeasure resistant signals processing and mission logic.[41] According to Defense Industry Daily the IDAS torpedo tube launched anti-helicopter missile, designed to defend against airborne threats while submerged in shallow water found in the Mediterranean where escape to depth is often not possible, is under development for the Dolphin and 212 classes.[42][43]

Jane's Defence Weekly reports that the Dolphin-class submarines are believed to be nuclear armed, offering Israel both a first strike and a second strike capability.[15][16] In adherence to Missile Technology Control Regime rules[40] the US Clinton administration refused an Israeli request in 2000 to purchase Tomahawk long range SLCMs. The US Navy has deployed nuclear armed and conventional Tomahawk missiles for its submarine fleet which are launched from standard heavy 533 mm torpedo tubes.[44] The Federation of American Scientists and GlobalSecurity.org report that the four larger torpedo tubes are capable of launching Israeli built nuclear-armed Popeye Turbo cruise missiles (a variant of the Popeye standoff missile), and the US Navy recorded an Israeli submarine-launched cruise missile test in the Indian Ocean ranging 1,500 km (930 mi).

[dustdevil28]

So use the diesel on the surface to power the batteries, then switch to the batteries once submerged.

Got it.

-DD

[Sailor]

Yah DD, even old diesel/electrics can be a stone bitch to track. 30 years ago in Caron we exercised against our one remaining diesel boat, Bonefish (SS 582.) She was used as a target for air, surface and submarines to hunt and regularly made all comers look foolish. We actually preferred to hunt Soviet Victor II and III boats. The diesels the Russians are producing today are several generations better than Bonefish (built in 1957) was. As active as the Chinese have been in "borrowing" the technologies of other powers, their boats are probably equal to the Russian boats. "Silent as an open grave."

I'm sure you're already aware that submarines have all the advantages against any surface combatant, that was true in my day and even more so now. In Spruance class DDs we had one of the finest sonar fits installed in surface ships, but even with towed arrays the sub would have to totally screw up for us to track her. On the other hand a modern SS or SSN can track a carrier 100 miles or more away and even with the best silencing tech can track an Arleigh Burke at a fair fraction of that.

Nothing classified there, it's all from open sources.

[dustdevil28]

Good stuff. Thanks.

-DD

[Sailor]

d'Nada bro.