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Anti-submarine warfare (ASW, or in the older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, ... (as in World War II) and ...
The Hedgehog (also known as an Anti-Submarine Projector) was a forward-throwing anti-submarine weapon that was used primarily during the Second World War.The device, which was developed by the Royal Navy, fired up to 24 spigot mortars ahead of a ship when attacking a U-boat. [2]
At the start of World War II, Britain's primary aerial anti-submarine weapon was the 100 lb (45 kg) anti-submarine bomb, but it was too light to be effective. To replace it, the Royal Navy's 450 lb (200 kg) Mark VII depth charge was modified for aerial use by the addition of a streamlined nose fairing and stabilising fins on the tail; it ...
By the time of World War II, anti-submarine weapons had been developed somewhat, but during that war, there was a renewal of all-out submarine warfare by Germany as well as widespread use of submarines by most of the other combatants. The effective use of depth charges required the combined resources and skills of many individuals during an attack.
Anti-submarine warfare (ASW) is an important role for surface combatants, as submarines present a serious threat to navies and civilian vessels. Many surface combatants carry weapons and sensors to engage submarines, but increasingly an on-board helicopter is used as the primary anti-submarine asset.
Japanese submarines also played a minimal role on the Pacific front, and American submarines sank a total of 5.3 million tons of Axis shipping throughout the war, most of which was scored against the Japanese. [3] In the 21st century unmanned underwater vehicles are coming to play a significant part in underwater warfare. [4]
During World War II, The US developed first anti-submarine rocket Mousetrap to replace Hedgehog anti-submarine mortar. [2] Both had the common characteristic of throwing multiple depth charges ahead of the attacking vessel, while it was still in sonar contact. After World War II several other countries developed anti-submarine rocket.
A P-3C of the Japan Maritime Self-Defense Force. A maritime patrol aircraft (MPA), also known as a patrol aircraft, maritime reconnaissance aircraft, maritime surveillance aircraft, or by the older American term patrol bomber, is a fixed-wing aircraft designed to operate for long durations over water in maritime patrol roles — in particular anti-submarine warfare (ASW), anti-ship warfare ...