An anti-submarine missile is a standoff anti-submarine weapon. Often a variant of anti-ship missile designs an anti-submarine systems typically use a jet or rocket engine, to deliver: an explosive warhead aimed directly at a submarine; a depth charge, or; a homing torpedo that is carried from a launch ship, or other platform, to the vicinity of a target.
Depth charges were the earliest weapons designed for use by ships against submerged submarines. These explosives were initially dropped as the ship moved over the presumed location of a submarine. Before World War II, shipboard sonar was unable to maintain contact with a submarine at close range.
During the Cold War, missiles were developed to provide greater range with reduced recoil. Some missiles and rockets, such as Hong Sang Eo carry homing torpedoes to provide terminal guidance for the warhead.
The advantage of an anti-submarine missile is the attack stand-off range. The Swedish Bofors 375mm m/50 Anti-Submarine Warfare (ASW) rockets, in the past commonly used by Sweden, France, Japan and Germany for instance, can travel as far as 3600m depending on the rocket used. The USSR developed its own anti-submarine rockets in the RBU series and these are still in use in Russia and in countries using Russian designed ships. Today anti-submarine rockets have been phased out in most western navies, replaced by the Homing ASW Torpedo.
- People's Republic of China
- South Korea
- Soviet Union/Russian Federation
- United Kingdom/Australia
- United States
- Hughes, Terry, and Costello, John The Battle of the Atlantic (1977) Dial Press ISBN 0-8037-6454-2 pp.307-308
- Albrecht, Gerhard Weyer's Warships of the World (1969) United States Naval Institute p.385
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