They were originally purchased by the province of British Columbia from a shipbuilder in Seattle, Washington, which had built the submarines for the Chilean Navy.
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After refit at La Spezia, Velella sailed on 25 November 1940 and passed the Strait of Gibraltar on 1 December for an Atlantic patrol to Bordeaux on 25 December.
They were large ocean-going cruiser submarines designed to operate in the Indian Ocean based in Italy's East African colonies.
She was torpedoed on 11 July by the Italian submarine Marconi during Force H's return passage.
The boat fired a four-torpedo salvo, of which two struck, one hitting the SMS Grosser Kurfürst, while the other struck the SMS Kronprinz; both enemy battleships were considerably damaged.
British C-class submarine, the last class of petrol engined submarines of the Royal Navy
:For other Italian submarines named Enrico Tazzoli, see Italian submarine Enrico Tazzoli.
A science documentary by EBS has revealed that Chang Bogo-class submarines undergo major generational overhaul and refit every eight to twelve years.
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In early 2012, the Korean defense firm LIG Nex1 exhibited its latest suite of indigenously developed submarine sensors, submarine combat systems, and heavy-weight torpedoes and wire-guided torpedoes in Indonesia for potential use by the Indonesian navy's submarine forces.
After successful trials by the Royal Navy, with submarine borne aircraft, using the Parnall Peto and the M-class submarines, the V-MF (Voenno-morskoj flot - Naval Fleet") wanted to deploy aircraft from cruiser submarines for open sea reconnaissance.
In February 1973, State Rocket Center Makayev began development of a new two-stage liquid-fueled ballistic missile R-29R (3M40, RSM-50, SS-N-18).
Chaffee has also worked as head of IBM's Art Department, has done paintings for NASA, the military, the book and the gaming industry, and did the official program painting for the Trident submarine.
The Echo II class (Project 675 class) were built at Severodvinsk (18 vessels) and Komsomolsk (11 vessels) between 1962 and 1967 as anti-carrier missile submarines.
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The Soviet Echo I class (Project 659 class) were completed at Komsomolsk in the Soviet far east in 1960 to 1963.
Atropo and Zoea, the second and third vessels of the class, were used after Italy's 1943 surrender by the Allies for supply runs to British garrisons in Samos and Leros in the Aegean.
On 12 February 1958, President Dwight D. Eisenhower authorized funding for three ballistic missile submarines.
The second unit was supposed to be built and delivered by USSR (pennant number K-208), but due to Sino-Soviet split, most on board equipment was not delivered, and the boat was used as sample for reverse engineering to complete the first unit, which entered Chinese service in August 1966.
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Project 619: K-153 was converted in 1976 to test SS-N-20 SLBM, and received NATO reporting name Golf V.
In 2004, the Swedish government received a request from the United States of America to lease HMS Gotland – Swedish-flagged, commanded and manned, for a duration of one year for use in anti-submarine warfare exercises.
United States H-class submarine - the nine Holland 602 that served in the US Navy.
In 2008, the Sunday Times reported that Ferrostaal allegedly gave former president Thabo Mbeki R30 million in bribes, some of which was allegedly shared with current president Jacob Zuma.
The Juliett unit K-77 while at a the maritime museum in Providence, Rhode Island, was slightly stage modified and used to act as the Hotel I SSBN K-19 in the National Geographic movie "K-19 Widowmaker" starring Harrison Ford.
They had to be replaced by severely underpowered engines from the Amur River gunboats Vikhr, Vyuga and Uragan, each of which delivered only 250 horsepower.
In 1975, K-21 was given to 17th submarine division which was a part of 11th submarine flotilla based in Gremikha.
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K-60 entered service with the Northern Fleet (given to 3rd division of nuclear submarines which was a part of 1st submarine flotilla, based in Malaya Lopatka of Zapadnaya Litsa Fjord) on 6 August 1964.
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K-11 entered service with the Northern Fleet (given to 3rd division of nuclear submarines which was a part of 1st submarine flotilla, based in Malaya Lopatka of Zapadnaya Litsa Fjord) on 16 March 1962.
The boats were designed by American Engineer Simon Lake and had wheels fitted for moving around on the sea bed as well as wet/dry chambers for divers.
In "Project Nobska," the Committee on Undersea Warfare of the United States National Academy of Sciences considered the lessons learned from various prototypes and experimental platforms.
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Joints in any equipment carrying seawater must be welded (not brazed), and every hull penetration larger than a specified size can be quickly shut by a remote hydraulic mechanism.
Other incidents caused oxygen-fueled flames to burst out from the boats, which led to their crews to nickname them zazhigalka ("lighters") or Zippos after the well-known cigarette lighter.
Italian R-class submarine, a group of submarines built for the Italian Royal Navy (Regia Marina Italiana) during World War II
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United States R-class submarine, a class of United States Navy submarines active from 1918 until 1945
To address this problem, in May 1960 the British Prime Minister, Harold Macmillan arranged a deal with US President Eisenhower to equip the V bombers with the US-designed AGM-48 Skybolt.
The final unit was the first to be equipped with the 3M-54 Klub (SS-N-27) antiship cruise missiles with a range of 220 km.
K51 to K56 were trapped in Leningrad during the Blockade and were completed after the war and transferred to the Arctic
In the fall of 1937 a proposal for a true fleet submarine (a submarine intended to operate as part of a larger fleet) was finally put forward by the team of officers put together by then Commander Charles A. Lockwood (later admiral and Commander Submarine Fleet Pacific), Lt. Cmdr. Andrew I. McKee, planning officer at Portsmouth Navy Yard, and Lt. Armand M. Morgan, head of the Navy's submarine design section.
The Tang class submarines were a product of the Greater Underwater Propulsion Power Program (GUPPY), which incorporated German U-boat technology into the United States Navy's submarine design.
The Argentine Navy requested that INVAP develop the CAREM nuclear reactor to power these submarines, but the program was halted in late 1980s.
The name Trafalgar refers to the Battle of Trafalgar fought between the Royal Navy and the combined fleets of France and Spain.
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The Trafalgar-class was to be replaced by the Future Fleet Submarine, however this project was effectively cancelled in 2001 and replaced by the Maritime Underwater Future Capability.
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The MOD also confirmed that on 24 March a further series of missiles were fired into Libya by a Trafalgar-class submarine at air defence targets around the city of Sabha.
Ohio-class submarine of the U.S. Navy, armed with Trident Ballistic Missiles (SSBN) or Cruise Missiles (SSGN).
Soviet submarine B-515, (now known as U-434), a Tango-class submarine built in 1976; currently a museum ship in Hamburg
In September 1916, Cantiere Navale Triestino (CNT) received authorization to build two boats of the class, U-48 and U-49, with the proviso that the boats be built in Budapest with final assembly at the Pola Navy Yard.
"Polaris" itself was an operational system of four Resolution-class submarines, each armed with 16 UGM-27 Polaris A-3 ballistic missiles, with each missile able to deliver three ET.317 thermonuclear warheads around a single target.
The B class submarines were three United States Navy submarines built by the Fore River Shipbuilding Company in Quincy, Massachusetts, under a subcontract from the Electric Boat Company.
Decommissioned 2 April 1919 and used as a target; sank at her moorings in Two Tree Channel, Niantic, Connecticut 30 July 1919.
In 1915 the Imperial Russian Navy had ordered 17 H-class submarines from the Electric Boat Company, to be built in Canada at a temporary shipyard near Barnet, Vancouver, British Columbia to avoid US neutrality concerns, which had derailed the delivery of ten similar submarines to the British.
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Finally struck from the Navy List in 1930, they were sold for scrap in 1931 and 1933.
K-1, K-2, K-5, and K-6 were built by Fore River Shipyard in Quincy, Massachusetts, K-3, K-7, and K-8 by Union Iron Works in San Francisco, and K-4 by Moran Bros. in Seattle, Washington.
According to former head of the Royal Corps of Naval Constructors R.J. Daniel, when US Admiral Hyman G. Rickover, widely regarded as the father of the nuclear submarine, initially learned of the proposed rafting system for the Valiant class he was dismissive of the concept, with the result that the Royal Navy gained an advantage in submarine silencing that the United States Navy did not introduce until considerably later.