In service 1977–present Designed 1960s–70s | ||
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Type Supercavitating Torpedo Designer NII-24 research institute | ||
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).
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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.
Previously operational as early as 1977, the torpedo was announced as being deployed in the 1990s. The Shkval is intended as a countermeasure against torpedoes launched by undetected enemy submarines.
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. 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.
Early designs may have relied solely on an inertial guidance system. The initial design was intended for nuclear warhead delivery. Later designs reportedly include terminal guidance and conventional warheads.
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.
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.
Espionage
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, allegedly on humanitarian grounds because he had bone cancer.
Specifications
There are at least three variants:
All current versions are believed to be fitted only with conventional explosive warheads, although the original design used a nuclear warhead.