Easier to hunt submarines in six years – New Technology

     Visby corvettes belonging to the ship, looking for mini-submarines in the Stockholm archipelago. They are adapted to sneak up among the inserts. (Larger fact box in the right column). Photo: TT
     

First 2020 Sweden is expected to receive helicopters with sonars can quickly find submarines among islets and rocks.

Sweden lacks helicopters for anti-submarine warfare, including sonars aboard. It has especially been noticeable now that the Navy conducts an intelligence operation in the Stockholm archipelago. The ability to quickly from the air to search for submarines disappeared in 2008 during the settlement of Helicopter fourth

– The capacity to carry the sonar and weapons systems, as anti-submarine warfare torpedo 45 and submarine mortar system Elma disappeared concurrently with Helicopter 4, says Ola Thunqvist, Commander and teacher of military technology at the National Defence College.

Sweden has bought a number of American Blackhawk helicopter 15, and is also about to get several European NH90 helicopter 14.

But, reportedly the new technology has the ability to hunt down submarines priority. The Armed Forces have instead focused on providing the helicopters ability to transport the sick and injured, something that was needed during the operation in Afghanistan.

Ola Thunqvist notes that helicopters are invaluable during an anti-submarine warfare.

– It chased the submarine know what happens, it hears and knows where other ships are. But a helicopter can not submarine to know where it is, he says.

The first 2020 five new Helicopter 14 will be equipped with sonars aboard, believes Allan Widman, defense committee chairman (FP).

The helicopters are also waiting for a new submarine torpedo. On July 1, Saab received an order from FMV on the project “New Lightweight Torpedo,” a replacement for the torpedo 45, which can be used from surface vessels, helicopters and submarines.

Without sjöoperativa helicopters get the Navy to work with others methods. The evidence suggests that it may be chasing a midget submarine.

– The best way to discover a mini submarine is when the snorkel, says a Swedish submarine expert who wishes to remain anonymous. When using the diesel engine to recharge the ship’s batteries so visible snorkel mast on the radar, and the exhaust gases emitted visible with infrared cameras.

According to the source, a mini submarine snorkel every other or every third day. How long the craft must be near the surface depends on the model.

The sound of the diesel engine can also be heard by passive sonars, such as found on sonar buoys and submarines.

While submarines are often put into the hunt.

– You have to be as quiet as possible so as not to get caught by the second submarine, which it hopes will reveal themselves acoustically.

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Visby corvettes: Five stealth boats equipped with anti-submarine warfare systems. An ordered mortars against submarines, Alecto, was canceled in 2007 (pictured).

Gothenburg corvettes: Two of the four ships remaining in post. Equipped with submarine torpedoes and anti-submarine mortars.

guard boat type 80 , “Tapper Class”: 12 boats equipped with depth charges and anti-submarine mortars.

minesweepers: Rural and Styrsöbolaget.

The submarines: Three in Gotland class and two in Södermanland class.

Submarine Salvage Ship: Belos.

Helicopter 15 (Agusta Westland AW109): Sweden has eight copies of the “B” version designed for maritime operations. They can trap the hydrophone buoys and has advanced camera and infrared. They can trap depth charges, anti-ship missiles (North AS.12 and Sea Skua) and anti-submarine warfare torpedoes.

Helicopter 14 (NH90): Sweden has ordered 18 copies. Five of these are HKP 14F, which can be equipped with, among other things, sonar for anti-submarine warfare. They can be in service by 2018.

North AS.12: wire-guided anti-ship missile, range 8 km.

Sea Skua: anti-ship missile for helicopters.

anti-submarine warfare torpedoes: can be folded from aircraft or helicopters.

Hydrofonboj: was obtained by submarine crisis in 1983, they are very sensitive and is used to look for submarines, U-mode.

Magnetometer.