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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 ...
Disagreements between the AAF and the Navy over command of long range aviation units engaged in antisubmarine warfare and of whether those forces would best be employed (offensively or defensively) continued into 1943, and in June, the AAF agreed that "The Army is prepared to withdraw Army Air Forces from anti-submarine operations at such time ...
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.
The entrance door to WATU. The crest was a relic from the destroyer HMS Tactician, decommissioned in 1931.. The Western Approaches Tactical Unit (WATU) was a unit of the British Royal Navy created in January 1942 to develop and disseminate new tactics to counter German submarine attacks on trans-Atlantic shipping convoys. [1]
An anti-submarine net used during World War II in Nova Scotia, Canada Anti-submarine defense net US Navy 1917. An anti-submarine net or anti-submarine boom is a boom placed across the mouth of a harbour or a strait for protection against submarines. Net laying ships would be used to place and remove the nets. The US Navy used anti-submarine ...
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]
Squid was a British World War II ship-mounted anti-submarine weapon. It consisted of a three-barrelled mortar which launched depth charges . It replaced the Hedgehog system, and was in turn replaced by the Limbo system.
Before and during World War II, 134 K-class blimps were built and configured for patrol and anti-submarine warfare operations, and were extensively used in the Navy’s anti-submarine efforts in the Atlantic and Pacific Ocean areas.