Periscope depth

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Submarine at periscope depth seen from above

Periscope depth - the maximum submerged depth of a submarine, where it is possible to observe the surface of the sea with a periscope. Usually it is several meters below the surface. A ship that is at periscope depth is more difficult to detect than an ascent and, in the event of an encounter with an enemy, the ship is able to descend to a safer depth in less time. At the same time, using a periscope, a submarine can easily detect and observe other units.

Initially, only a simple periscope was used for observation, with the development of aviation a periscope was introduced for sky observation. At the periscope depth, you can also use a snorkel or air intake device for internal combustion engines. The use of snoring allows the ship to work on internal combustion engines, which in turn increases the speed and the ability to recharge the batteries.

Peripheral depth does not correspond to one strictly defined distance from the water surface. This depth depends on a number of factors, including the structure of the ship - in particular the size, shape and height of the kiosk, as well as the lengths installed in the periscopes. The periscope depth should be distinguished from the radar depth and communication depth, which is the maximum depth of immersion where radar and radar coverage can be adequately observed.

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