How Deep Can a Submarine Go?

Answer

The deepest diving submarines, also called Deep Submergence Vehicles can reach a depth of 10,000 meters. Most of them are designed to go deep for scientific research purposes. The deepest dive was made by the bathyscaphe Trieste, reaching a depth of 10,900 meters.
1 Additional Answer
A submarine can dive to depths in excess of 250 metres. However, the actual depth is classified. Modern nuclear submarines can travel at speeds in excess of 25 miles per hour and can maintain this speed indefinitely, so allowing the submarine the ability to go anywhere in the world quickly and quietly.
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