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An attack submarine or hunter-killer submarine is a submarine specifically designed for the purpose of attacking and sinking other submarines, surface combatants and merchant vessels. In the Soviet and Russian navies they were and are called "multi-purpose submarines". [ 1 ]
A hunter-killer group would typically be formed around an escort carrier to provide aerial reconnaissance and air cover, with a number of corvettes, destroyers, destroyer escorts, frigates, and/or United States Coast Guard Cutters armed with depth charges and Hedgehog anti-submarine mortars.
The Americans favored aggressive hunter-killer tactics using escort carriers on search and destroy patrols, whereas the British preferred to use their escort carriers to defend the convoys directly. The American view was that defending convoys did little to reduce or contain U-boat numbers, while the British and Canadians were constrained by ...
HMCS Chicoutimi is a Victoria-class long-range hunter-killer (SSK) submarine of the Royal Canadian Navy, originally built and operated by the Royal Navy as HMS Upholder. Shortly after being handed over by the United Kingdom to Canada she was involved in a partial flooding incident which resulted in a fire at sea.
This allowed convoys to be diverted and hunter-killer groups to be targeted on the pack. Submarines now transmit using methods that are less susceptible to intercept. In World War II, high frequency direction finding (HF/DF or "Huff-duff) was used by Allied escort vessels to detect submarines making position or sighting reports.
HMS Umpire (N82) was a Royal Navy U-class submarine built at Chatham Dockyard and sunk in an accident nine days after commissioning in July 1941 with the loss of 22 men. The submarine was sunk while en route from Chatham to join the 3rd Submarine Flotilla at Dunoon, under the command of Lieutenant Mervyn Wingfield. [1]
USS Guadalcanal (CVE-60) was a Casablanca-class escort carrier of the United States Navy, which served during and after World War II. She was the first ship to carry her name. She was the flagship of Task Group 22.3, a hunter-killer group which captured the German submarine U-505 in 1944.
She was the flagship of Task Group 21.14 (TG 21.14), a hunter-killer group formed to destroy German submarines in the North Atlantic. In 1964, while operating as an aircraft ferry, Card was sunk with explosives planted by two Viet Cong commandos in the Harbor of Saigon, South Vietnam. She was refloated 17 days later and returned to service ...