Sonar is a technique that uses sound propagation to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels.
The Italian Navy is one of the four branches of Italian Armed Forces and was formed in 1946 from what remained of the Regia Marina after World War II. As of August 2014, the Italian Navy had a strength of 30,923 active personnel, with approximately 184 vessels in service, including minor auxiliary vessels. It is considered a multiregional and a blue-water navy.
A deep-submergence rescue vehicle (DSRV) is a type of deep-submergence vehicle used for rescue of personnel from disabled submarines and submersibles. While DSRV is the term most often used by the United States Navy, other nations have different designations for their equivalent vehicles.
COMSUBIN is the Italian Navy's special operations unit. Italy was the first nation to use frogmen and human torpedoes. The Royal Italian Navy's Naval Assault Divisions are considered to be the precursor of modern Naval Special Forces. Their record can be traced back to World War I and the operation against the Austrian-Hungarian Battleship Viribus Unitis in Pula Harbour in 1918.
The Capitani Romani class was a class of light cruisers acting as flotilla leaders for the Regia Marina. They were built to outrun and outgun the large new French destroyers of the Le Fantasque and Mogador classes. Twelve hulls were ordered in late 1939, but only four were completed, just three of these before the Italian armistice in 1943. The ships were named after prominent ancient Romans.
Marion Dufresne is a research and supply vessel named in honour of the 18th-century French explorer Marc-Joseph Marion du Fresne launched in 1995 and having two main missions: logistic support for the French Austral Islands and oceanographic research.
The NATO Submarine Rescue System (NSRS) is a tri-national project to develop an international submarine rescue system. The system provides a rescue capability primarily to the partner nations of France, Norway and the United Kingdom, but also to NATO and allied nations and to any submarine equipped with a suitable mating surface around its hatches.
Deep-sea exploration is the investigation of physical, chemical, and biological conditions on the ocean waters and sea bed beyond the continental shelf, for scientific or commercial purposes. Deep-sea exploration is an aspect of underwater exploration and is considered a relatively recent human activity compared to the other areas of geophysical research, as the deeper depths of the sea have been investigated only during comparatively recent years. The ocean depths still remain a largely unexplored part of the Earth, and form a relatively undiscovered domain.
HSwMS Belos (A214) is a submarine rescue ship in the Swedish Navy's 1st Submarine flotilla. She carries the Submarine Rescue Vehicle URF. She is also capable of carrying the NATO rescue system NSRS. HSwMS Belos is currently (2017) the largest ship by displacement in the Swedish Navy. HMS Belos is traditionally the name of the Swedish Navy's submarine rescue vessel and she is the third ship with that name.
A submarine rescue ship is a surface support ship for submarine rescue and deep-sea salvage operations. Methods employed include the McCann Rescue Chamber, deep-submergence rescue vehicles (DSRV's) and diving operations.
ABISMO is a remotely operated underwater vehicle (ROV) built by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) for exploration of the deep sea. It is the only remaining ROV rated to 11,000-meters, ABISMO is intended to be the permanent replacement for Kaikō, a ROV that was lost at sea in 2003.
Anteo is a submarine rescue ship of the Italian Navy, assigned to Raggruppamento Subacquei ed Incursori "Teseo Tesei" (COMSUBIN). Anteo is the third ship to bear this name in the Italian Navy. The ship's design was developed by the "Ufficio Navi Speciali del Reparto Progetti Navi", according to the guidelines provided by the Navy General Staff. The ship was built at Cantiere Navale Breda di Porto Marghera and commissioned to the Italian Navy on 31 July 1980.
Elettra is an Italian Navy SIGINT vessel designated as 'Nuova Unità Polivalente di Supporto (NUPS).
Designed to carry out research and surveillance activities, the vessel's platform was developed from the RV Alliance built for NATO.
Her propulsion system, based on two permanent magnet electric engines, constitutes a technological breakthrough and she is the first surface vessel in the world to be powered by this type of engine. The main characteristics of this propulsion system are: high reliability, high efficiency, low maintenance and low underwater radiated noise
Ammiraglio Magnaghi is a hydrographic survey vessel in service with Italian Navy.
It's the first survey vessel ever to be designed and built completely in Italy for the Marina Militare. It has been regularly modernized and constantly upgraded.
Alliance (A5345) is a research vessel owned by NATO and operated by the Marina Militare as a NATO research vessel and owned by the CMRE – Centre for Maritime Research and Experimentation, in La Spezia, Italy. Alliance has the status of an auxiliary ship of the Marina Militare.
SRV-300 is a deep-submergence rescue vehicle that is rated to dive up to 300 m (980 ft). It was built by DRASS (Livorno) for the Marina Militare, and is capable of descending to 300 metres (980 ft) carrying 12 passengers in addition to crew. SRV-300 is hosted by Anteo, berthed at La Spezia.
MSM-1 USEL was a deep-submergence rescue vehicle (DSRV) that was rated to dive up to 600 m (1,969 ft). It was built by Cantieri Navali Ernesto Breda/Fincantieri for the Marina Militare. The sub was capable of descending to 600 metres (2,000 ft) below the surface and could carry 8 passengers at a time in addition to her crew. MSM-1 USEL was hosted by mother ship Anteo at La Spezia from 1980 to 2002. That year MSM-1 USEL was replaced by the DRASS Galeazzi SRV-300.
Drass, or DRASS, is an Italian manufacturing company headquartered in Livorno, whose best known for their range of midget submarine and swimmer delivery vehicle. They also have a line of hyperbaric chambers for diver decompression.
The following is the structure of the Italian Navy as of June 2020. It is considered a multiregional and a blue-water navy.
Italy
