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This is the maximum depth at which a submarine is permitted to operate under normal peacetime circumstances, and is tested during sea trials.The test depth is set at two-thirds (0.66) of the design depth for United States Navy submarines, while the Royal Navy sets test depth at 4/7 (0.57) the design depth, and the German Navy sets it at exactly one-half (0.50) of design depth.
During World War Two, high-strength alloyed steel was introduced, allowing for depths up to 200 metres (660 ft); post-war calculations have suggested crush depths exceeding 300 metres (980 ft) for late-war German Type VII U-boats. High-strength alloyed steel is still the main material for submarines today, with 250 to 350 metres (820 to 1,150 ...
Those reports can be true - after all, the crush depth is just an educated guess or calculation based on the material used, hull thickness, heat treatment, etc. There are so many variables in it, and since any nation has a vested interest in keeping her subs and crewmen alive, these guesses and calculations about the crush depth are rather ...
Vanguard class vessel carrying Trident nuclear missiles reportedly headed towards ‘crush depths’ putting 140 crew at risk Royal Navy nuclear submarine ‘sinks to dangerous depths after gauge ...
The Type VII was based on earlier German submarine designs going back to the World War I Type UB III and especially the cancelled Type UG. The type UG was designed through the Dutch dummy company NV Ingenieurskantoor voor Scheepsbouw Den Haag (I.v.S) to circumvent the limitations of the Treaty of Versailles, and was built by foreign shipyards.
The submarine is equipped with an S6G reactor that allows 15 knots surfaced and 32 plus knots submerged. The submarine can operate with an approximate 800 feet (240 m) depth range, 1,200 feet (370 m) safe depth, and 1,800 feet (550 m) crush depth. Jacksonville has a crew of 12 officers and 121 enlisted personnel.
The depth of the Titan debris was about 12,500 feet . Carl Hartsfield, an expert with the Woods Hole Oceanographic Institution, said that the debris was found in an area where there was no Titanic ...