With a sophisticated fire control system, the Type XXI could launch an attack from a depth of 150 feet. The 230-ton coastal submarine Type XXIII, meanwhile, had twice the submerged speed and five ...

Sparked by the effectiveness of German U-boats, GUPPY aimed to modernize American submarines, starting with reverse engineering German Type XXI U-boats. -The program, which ran from 1947 to 1963 ...

U.S. Navy Type XXI submarine diagram. U.S. Navy U-2540 in wartime configuration and exhibited at the Maritime Museum in ...

The submarine was one of Nazi Germany’s Type XXI U-boats, which could stay underwater for longer and travel further than their predecessors. Only two of 118 planned Type XXIs entered service ...

While China is developing the Type 096 to address these shortcomings, the Jin-class submarines currently struggle to provide the reliable global nuclear deterrence China seeks ...

Multiple sightings of Type 094 submarines transiting in the Taiwan Strait may be a sign that the PLA’s nuclear submarines and missile technology has matured, according to an influential mainland ...

A sonar decoy is a device for decoying sonar. Most are released from submarines to act as a false target. Bold decoy pellet Bold launch tube, in the stern compartment of a type XXI U-boat Later decoys ...

There are 48 diesel-electric-powered submarines in the Chinese Navy's service, and almost half of them (21) belong to the 3,600-ton Type 039A/B, according to a report released last year by the U.S ...

Over the following eight years, they built 235 Whiskey class submarines using the Type XXI as a template. One of the officers detailed to Oak Ridge in 1946, Captain Hyman Rickover, assumed control ...