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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, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines.
Operation Prairie Flat was a test involving the detonation of a 500-short-ton (450 t) spherical surface charge of TNT to evaluate airblast, ground shock and thermal effects of nuclear weapons. [ 1 ] Since TNT charges produce roughly double the airburst effect of nuclear weapons, it allowed testing the equivalent of a 1 kiloton of TNT (4.2 TJ ...
The test was also the first of its kind using a stacked TNT block hemisphere of such magnitude, a method repeated in six subsequent tests such as Operation Sailor Hat and Prairie Flat. The test allowed verifying predicted properties of shock and blast and determining its effect on a variety of military targets at varied distances from ground zero.
The Bomb, Medium Capacity, 22,000 lb (Grand Slam) was a 22,000 lb (10,000 kg) earthquake bomb used by RAF Bomber Command against German targets towards the end of the Second World War. The bomb was originally called Tallboy Large until the term Tallboy got into the press and the code name was replaced by "Grand Slam".
[49] [50] Roughly 4000 tons [51] [52] of surplus World War II ammunition were placed in various locations around the island and set off. A significant portion of the fortifications were destroyed, although some survived. According to Willmore, [52] the energy released was 1.3×10 13 J, or about 3.2 kilotons of TNT
The 1,000 lb (450 kg) MC was developed from 1942 to replace the existing 1000 lb GP (General Purpose) bomb. Initially using most of the components of the 1000 lb GP it was decided to give it a new tail and it was built with a half-inch-thick wall. Fillings could be Amatex, Amatol, Minol, RDX and others.
On D-plus 2 the beachmaster requested help. There were so many broached or damaged landing craft and the beach was so clogged with war debris that there was no place for landing craft to get ashore. Lt Cmdr. E. Hochuli of UDT 12 volunteered his team to go deal with the problem and teams 13 and 14 were ordered to go with. [30]
Diagram of a 4,000 lb HC Mark I bomb Standard American AN-M56 4,000 lb (1.8 t) general-purpose bomb. Blockbuster bombs were the RAF's high capacity (HC) bombs. Their especially thin casings allowed them to contain approximately three-quarters of their weight in explosive, with a 4,000 lb bomb (nominal weight) containing about 3,000 lb (1,400 kg) Amatol, RDX or Torpex.