Casing (submarine)

Casing (submarine)

The casing of a submarine is a light metal structure, usually incorporating a deck, built-up and-over the upper surface of the vessel's pressure hull.

The pressure hull of a submarine is usually cylindrical and possesses a low freeboard when in the water, which makes walking on the hull when on the surface dangerous in high seas or rough weather. The casing provides a flat, safer, platform for personnel to walk on.

The casing is outside of the pressure hull and free-flooding so is usually perforated with numerous holes, allowing water to enter and trapped air to escape easily, destroying any buoyancy contributed by the casing and allowing the submarine to submerge with as little delay as possible.

Casings have become superfluous since the end of World War II as the flow of water through the numerous flood-holes creates noise that may be detected by an enemy using passive sonar, as well as causing hydrodynamic drag.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Casing — may refer to:* Casing (ammunition), a shell enclosing the explosive propellant in ammunition * Casing (sausage), a thin covering holding the food contents of sausage * Casing (borehole), a metal tube used during the drilling of a well * Casing… …   Wikipedia

  • Submarine hull — U 995, Type VIIC/41 U Boat of WWII, showing the typical combination of ship like non watertight outer hull with bulky strong hull below The term light hull (casing in British usage) is used to describe the outer hull of a submarine, which houses… …   Wikipedia

  • Submarine — For other uses, see Submarine (disambiguation). A Japan Maritime Self Defense Force Oyashio class submarine in 2006 A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which… …   Wikipedia

  • Collins class submarine — HMAS Rankin, sixth submarine of the Collins class, underway in 2006 Class overview Builders: Australian Submarine Corporatio …   Wikipedia

  • Anti-submarine weapon — An anti submarine weapon is any one of a range of devices that are intended to act against a submarine, and its crew, to destroy (sink) the vessel or to destroy or reduce its capability as a weapon of war. An anti submarine weapon can be… …   Wikipedia

  • Russian submarine Kursk explosion — On August 12, 2000, the Russian Oscar II class submarine, Kursk sank in the Barents Sea. The generally accepted theory is that a leak of hydrogen peroxide in the forward torpedo room led to the detonation of a torpedo warhead, which in turn… …   Wikipedia

  • Oberon class submarine — For the 1920s O class submarines, sometimes referred to as the Oberon class, see Odin class submarine. HMS Otus Class overview Name: Oberon …   Wikipedia

  • Russian submarine K-141 Kursk — An Oscar II class submarine drawing Career (Russia) …   Wikipedia

  • Upholder/Victoria class submarine — The Upholder / Victoria class submarines, also known as the Type 2400 (due to their displacement of 2,400t), are diesel electric Fleet submarines designed in the UK in the late 1970s to supplement the Royal Navy s nuclear submarine force. In 1998 …   Wikipedia

  • German Type XXIII submarine — German Type XXIII submarines were the first so called elektroboats to become operational. They were small coastal submarines designed to operate in the shallow waters of the North Sea, Black Sea and Mediterranean Sea, where larger Type XXI… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”