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The Mk 101 Lulu was a US nuclear depth bomb operational from 1958 to 1972. A depth charge fitted with a nuclear warhead is also known as a "nuclear depth bomb". These were designed to be dropped from a patrol plane or deployed by an anti-submarine missile from a surface ship, or another submarine, located a safe distance away.
A nuclear depth bomb is the nuclear equivalent of a conventional depth charge, and can be used in anti-submarine warfare for attacking submerged submarines. The Royal Navy , Soviet Navy , and United States Navy all had nuclear depth bombs in their arsenals at one point.
The UUM-44 SUBROC ("Submarine Rocket") was a type of submarine-launched rocket deployed by the United States Navy as an anti-submarine weapon. It carried a 25 kiloton tactical nuclear warhead configured as a nuclear depth bomb. [3]
Mk. 17 depth bomb is being unloaded from a SOC Seagull scout plane on board the USS Philadelphia (CL-41) during an Atlantic U-boat sweep near Panama in June 1942. Air-dropped depth bombs were normally set to explode at a shallow depth, while the submarine was crash-diving to escape attack.
The Mk-101 "Lulu" started to be replaced by the multipurpose B57 nuclear bomb during the mid-1960s. The B-57 was a bomb that could be used by tactical aircraft against land targets, as well as a nuclear depth charge. [1] The Mk-101 "Lulu" had a length of 7 ft 6 in (2.29 m), diameter of 1 ft 6 in (46 cm), and weighed 1,200 lb (540 kg).
The RUR-5 ASROC (for "Anti-Submarine Rocket") is an all-weather, all sea-conditions anti-submarine missile system. Developed by the United States Navy in the 1950s, it was deployed in the 1960s, updated in the 1990s, and eventually installed on over 200 USN surface ships, specifically cruisers , destroyers , and frigates .
They included anti-submarine depth charges and smoke floats used to lay down cover for warships. The US. Navy said the munitions were probably dumped during the World War II era as ships returned ...
All six bombs were fired in salvo so they formed opposing triangular spreads. The salvos were set to explode 25 feet (7.6 m) above and below the target, the resulting pressure wave crushing the hull of the submarine. Post-war trials found Squid was nine times more effective than conventional depth charges. [3]