How deep can a nuclear submarine dive?

The limit dive depth of nuclear submarine reaches1250m.

Due to the production and operation cost of this submarine, plus the volume and weight of related equipment, only military submarines use this power source. The submarine's underwater endurance can reach 200,000 nautical miles and its self-sustaining power can reach 60-90 days.

The first nuclear submarine in the world was the Nautilus of the United States, which began its first trial on June 24th, 1954/KLOC-0, announcing the birth of a nuclear-powered submarine.

There are six countries in the world that openly claim to have nuclear submarines, namely the United States, Russia, Britain, France, China and India (India's nuclear submarine destroyers are under construction). Among them, the United States and Russia have the most nuclear submarines. The emergence of nuclear submarines and the application of nuclear strategic missiles have brought the development of submarines into a new stage. Nuclear submarines equipped with nuclear strategic missiles are underwater deterrent nuclear forces.

Extended data:

The use experience of submarines during the Second World War exposed a big problem, that is, the time that submarines can continue to sail underwater. The working time of submarine under water surface is seriously limited by the storage capacity of battery. Even if you sail at the lowest speed, you must surface to charge after a period of time, and the submarine is very vulnerable to attack during charging.

Another limitation is the maximum speed and duration of the battery on the submarine, especially the maximum sailing speed under water is much lower than that above water.

If you want to follow a high-speed ship, the submarine must emerge from the sea and use a diesel engine to output power, so as to barely catch up with the slow-moving fast ship, but in this way, the submarine loses its protection against seawater and its operational advantage.

Therefore, in order to expand the tactical value of submarine and greatly improve the continuous combat time under the sea surface, developing alternative power sources has always been an important goal of submarine research.

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