VA-111 Shkval

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VA-111 Shkval
Shkval.jpg
VA-111 Shkval
TypeSupercavitating torpedo
Place of originSoviet Union
Service history
In service1977–present
Used byRussian Navy
Production history
DesignerNII-24 research institute
Designed1960s–70s
ManufacturerTactical Missiles Corporation
Produced1977–present
VariantsShkval 2, Shkval-E
Specifications
Mass2,700 kg (6,000 lb)
Length8,200 mm (26 ft 11 in)
Diameter533 mm (21 in)

Effective firing rangeShkval: 7 km (4.3 mi)
Shkval 2: From 11–15 km (6.8–9.3 mi)
WarheadConventional explosive or nuclear
Warhead weight210 kg (460 lb)

EngineSolid-fuel rocket
PropellantSolid-fuel
Maximum 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: шквал, squall) torpedo and its descendants are supercavitating torpedoes originally developed by the Soviet Union. They are capable of speeds in excess of 200 knots (370 km/h or 230 miles/h).[1]

Design and capabilities[edit]

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][4] 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]

Shkval is supposed to have a rocket-type engine, but in the recent years has emerged publications from Russia and China about a "hydro ramjet" that use hydro reactive metal fuel (HRF) used for high speed torpedo.[5][6]

Available schemes of this type of engine shows also a dedicated steam circuit for the supercavitation generating head.[7]

Early designs may have relied solely on an inertial guidance system.[8][9] The initial design was intended for nuclear warhead delivery. Later designs reportedly include terminal guidance and conventional warheads.[3]

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]

In 2016, KTVR was upgrading Shkval.[10]

Manufacture[edit]

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.[11]

Espionage[edit]

In 2000, former U.S. Naval intelligence officer and an alleged Defense Intelligence Agency (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 on humanitarian grounds because he had bone cancer.[12][13]

Operators[edit]

Specifications[edit]

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: 532 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)[14]

References[edit]

  1. ^ "VA-111 Shkval Torpedo". Military Periscope. Archived from the original on 2012-01-18.
  2. ^ a b c d e "Iranian Navy Test-Fires New Home-Made Torpedo". Fars News Agency. 22 November 2014. Retrieved 18 May 2015.
  3. ^ a b Polmar 2004, p. 304.
  4. ^ Baker 2000, p. 581.
  5. ^ "The allure of supercavitating torpedoes". Naval Technology. 19 June 2017. Retrieved 2019-12-31.
  6. ^ "Russia developing Khishchnik high-speed torpedo to replace VA-111 Shkval supercavitating torpedo". Navy Recognition. 16 January 2017. Retrieved 2019-12-31.
  7. ^ Garanin 2009, p. 216.
  8. ^ "КТРВ на МАКСе-2009 представит новую продукцию". AviaPort.Ru (in Russian). 27 July 2009. Retrieved 2019-12-31.
  9. ^ Shakhidzhanov, Ye. S. "Подводные ракеты". Flot.com (in Russian). Retrieved 2019-12-31.
  10. ^ "Russia's Tactical Missiles Corporation Upgrading VA-111 Shkval Supercavitating Torpedo". Navy Recognition. 22 August 2016. Retrieved 2019-12-31.
  11. ^ "Russia, Kyrgyzstan Clash Over Torpedo Plant". RIA Novosti. 22 March 2012. Retrieved 2019-12-31.
  12. ^ Tavernise, Sabrina (15 December 2000). "American Jailed as Spy in Moscow Is Freed on Putin's Orders; U.S. Welcomes Gesture". The New York Times. Retrieved 2019-12-31.
  13. ^ Murphy, Dean E. (15 January 2001). "Moscow 'Spy' Case Is Still a Mystery". The New York Times. Retrieved 2019-12-31.
  14. ^ "Post-World War II Torpedoes of Russia/USSR". NavWeaps. Retrieved 2019-12-31.

Sources[edit]

  • Polmar, Norman (2004). Cold War Submarines: The Design and Construction of U.S. and Soviet Submarines. Dulles: Potomac Books. ISBN 978-1-57488-594-1.CS1 maint: ref=harv (link)
  • Garanin, I. V. (2009). "The Hydro-Reacting Marine Solid Fuel Rocket Engines". In Favorsky, Oleg N. (ed.). Thermal to Mechanical Energy Conversion :Engines and Requirements. II. Oxford, United Kingdom: EOLSS Publications. pp. 201–238. ISBN 978-1-84826-022-1.CS1 maint: ref=harv (link)
  • Baker, A. D., III, ed. (2000). Combat Fleets of the World 2000–2001: Their Ships, Aircraft, and Systems. Annapolis, Maryland: Naval Institute Press.CS1 maint: ref=harv (link)

External links[edit]