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Russia to Make Indian Anti-Submarine Warfare Helicopters More Lethal

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http://sputniknews.com/russia/20160801/1043836027/india-russia-helicopters.html


Augusta Westland's involvement in corruption charges prompted India to swiftly ink a deal with Russian firm Rosoboronexport to carry out upgrades on the Kamov Ka28 PL without having to strike down Selex’s ATOS mission management system from the upgrade process.

India and Russia have inked a deal worth 310 million dollars to upgrade ten Kamov Ka28PL anti-submarine warfare helicopters for the Indian Navy. The signing of the agreement was a smooth affair as evident from its finalization within two months of clearance by India's Cabinet Committee on Security. The Defense Acquisition Council cleared the proposal in March this year. This is the first time a deal of this nature has been signed by India in such a swift manner

Upgrades of the Kamov 28 had been pending for the last eight years due to various reasons. However, sensing the Indian Navy's immediate necessity, especially for its frigates, destroyer and aircraft carrier INS Vikramaditya, Indian Defense Minister Manohar Parrikar intervened and signed the deal last Saturday.

Defense Ministry sources told Sputnik that this deal was inked swiftly as India's Prime Minister's Office (PMO) did not want to delay the process. The PMO's decision seems to have been prompted by the fact that Selex Galilio, a subsidiary of Leonardo Finmeccanica was to provide sensors and other equipment for the proposed upgrades. However, the Indian government recently decided not to hold business deals with Leonardo Finmeccanica following its subsidiary AgustaWestland's involvement in a corruption case in India.

Now, as per the latest deal with Russia, India will not directly purchase sensors and equipment from Selex, but rather from the original equipment manufacturer Russia's Rosoboronexport, which will import them and install on the Kamov 28. Selex's flagship Airborne Tactical Observation and Surveillance (ATOS) mission management system provides wide area and targeted surveillance (overt or covert), anti-submarine warfare, environmental and border control. According to sources, out of the ten Indian Navy helicopters available, six will get state of the art sensors and lethal equipment while four will go for an engine overhaul. The project will be completed in two locations; first, Kamov-28's will go to Russia for overhaules while sensors and final assembly will be done on Indian soil i.e Vizag.
 
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Anti Submarine helicopter?

How can a helicopter take down a submarine?
 
I dont understand this buddy, I am not very good with military info.
Give me a single explanation, how can a helicopter possibly take down a submarine inside the water?


By firing a Torpedo or anti submarine bombs/depth charges. It is written in table itself.
 
By using Radar and Sonar, depending on diving status of sub. And Torpedo could home in and follow a sub.

You mean a radar can detect a sub? Aren't subs stealth?
I mean a Chinese sub once popped up in the middle of USN exercise, they were stunned by that.
A similar thing happened in like 70s b/w a Pakistani sub and USN.

Some say that it is because inside deep water, submarines are hard to detect.
Then how come a radar flying in the air can detect it.
 
Anti Submarine helicopter?

How can a helicopter take down a submarine?
An ASW helicopter will traditionally team with a surface ship to prosecute an underwater target. The helicopter will deploy multiple sonobuoys and then utilize tactical sensor systems installed on both the surface ship and the helicopter in order to localize the target. The helicopter's crew can track and, if necessary, attack a submarine with torpedoes.

The ASW mission requires a helicopter crew to track submarines using sonobuoys. Sonobuoys are passive or active sonars that can localize a sound source. Sonobuoys are placed in patterns and provide the direction from which a sound is emanating underwater.Typical sonobuoys used by the Navy include Low Frequency and Ranging (LOFAR) and Directional Frequency and Ranging (DIFAR). Bathythermograph sonobuoys create a profile of water temperature versus depth. ASW aircraft are predominantly equipped with sonobuoy launcher systems which utilize cartridge-activated devices, such as pyrotechnic squibs or high-pressure gas bottles, as the energy source for ejecting the sonobuoys. Gas is discharged at high pressure for high reactive loads at low volume entailing very sophisticated breech and firing mechanisms within separate metal, plastic or filament-wound fiberglass sonobuoy launch containers.

Dipping sonar allows the helicopter to listen for and transmit underwater electronic signals while in a "hover" or stationary mode. The aircraft typically hovers at an altitude of 50 to 300 feet above sea level and lowers the transducer into the water using a powered reel system similar to a fishing reel. The transducer can be lowered to depths ranging from the water's surface to 2,500 ft. Once lowered to the selected depth, the transducer is activated, generating sound signals and receiving echoes from submerged objects. These echoes can then be processed to identify and locate potential underwater threats.
hope @PARIKRAMA can explain u better
 
You mean a radar can detect a sub? Aren't subs stealth?
I mean a Chinese sub once popped up in the middle of USN exercise, they were stunned by that.
A similar thing happened in like 70s b/w a Pakistani sub and USN.

Some say that it is because inside deep water, submarines are hard to detect.
Then how come a radar flying in the air can detect it.


Subs are not stealthy, neither to radar nor to sonar. Radar method work if sub is snorkeling and sonar when it is diving.

And Chinese (and Pakistani) sub popped up in middle of USN exercise because it was not stopped. By international law every vessel has a right to use international waters and stopping that sub would have meant war. It was a propaganda exercise and a pretty bad one at that as USN got chance to register noise signature of Chinese sub accurately.

Subs only become stealthy when they dive below thermocline layer which no submarine bar a couple of SSBNs (that too postulated only) like Typhoon class could do. Rest would crumple up and sink before hitting a Km deep mark.
 
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An ASW helicopter will traditionally team with a surface ship to prosecute an underwater target. The helicopter will deploy multiple sonobuoys and then utilize tactical sensor systems installed on both the surface ship and the helicopter in order to localize the target. The helicopter's crew can track and, if necessary, attack a submarine with torpedoes.

The ASW mission requires a helicopter crew to track submarines using sonobuoys. Sonobuoys are passive or active sonars that can localize a sound source. Sonobuoys are placed in patterns and provide the direction from which a sound is emanating underwater.Typical sonobuoys used by the Navy include Low Frequency and Ranging (LOFAR) and Directional Frequency and Ranging (DIFAR). Bathythermograph sonobuoys create a profile of water temperature versus depth. ASW aircraft are predominantly equipped with sonobuoy launcher systems which utilize cartridge-activated devices, such as pyrotechnic squibs or high-pressure gas bottles, as the energy source for ejecting the sonobuoys. Gas is discharged at high pressure for high reactive loads at low volume entailing very sophisticated breech and firing mechanisms within separate metal, plastic or filament-wound fiberglass sonobuoy launch containers.

Dipping sonar allows the helicopter to listen for and transmit underwater electronic signals while in a "hover" or stationary mode. The aircraft typically hovers at an altitude of 50 to 300 feet above sea level and lowers the transducer into the water using a powered reel system similar to a fishing reel. The transducer can be lowered to depths ranging from the water's surface to 2,500 ft. Once lowered to the selected depth, the transducer is activated, generating sound signals and receiving echoes from submerged objects. These echoes can then be processed to identify and locate potential underwater threats.
hope @PARIKRAMA can explain u better

Remind me not to ask military info again :enjoy:
 

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