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Echo-class Submarine
The Echo class were nuclear cruise missile submarines of the Soviet Navy built during the 1960s. Their Soviet designation was Project 659 for the first five vessels, and Project 675 for the following twenty-nine. Their NATO reporting names were Echo I and Echo II. All were decommissioned by 1994. Echo I class The Soviet Echo I class (Project 659 class) were completed at Komsomolsk in the Soviet far east in 1960 to 1963. The Echo I class were classed as SSGNs armed with six launchers for the P-5 Pyatyorka (SS-N-3C, "Shaddock") land-attack cruise missile. The Echo I class had to operate in a strategic rather than anti-shipping role because of the lack of fire control and guidance radars. As the Soviet SSBN force built up, the need for these boats diminished so they were converted to the Project 659T SSNs between 1969 and 1974. The conversion involved the removal of the cruise missiles, the plating over and the streamlining of the hull to reduce underwater noise of the launch ...
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Amur Shipbuilding Plant
OJSC Amur Shipbuilding Plant (russian: Амурский судостроительный завод, ''Amurskiy Sudostroitelnyy Zavod'', and also called the "Leninskiy Komsomol Shipyard") is an important shipyard in eastern Russia, based in Komsomolsk-on-Amur, and founded in 1932. It employs 15,000 people, and produces both civilian and military ships, including nuclear submarines. Around 97 submarines (56 nuclear-powered and 41 conventional) as well as 36 warships were built at the yard. The shipyard started building nuclear submarines in 1957, with the first one completed in 1960. Submarines built at the Amur Shipbuilding plant include Delta I class ballistic missile submarines, Echo I and II class cruise missile submarines and ''Akula''-class attack submarines. In 1992, then-president Boris Yeltsin announced that the Sevmash shipyard in Severodvinsk would remain the only nuclear submarine construction site. In 2008, the first nuclear submarine built at the shipyard in 13 ...
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SSN (hull Classification Symbol)
An SSN is a nuclear-powered general-purpose attack submarine. ''SSN'' is the US Navy hull classification symbol for such vessels; the ''SS'' denotes a submarine and the ''N'' denotes nuclear power. The designation SSN is used for interoperability throughout NATO under STANAG 1166, though navies use other terms. History The first nuclear-powered attack submarine was the US Navy's , operational from 1954. This was followed by the four submarines of the entering service in 1957. The Royal Navy's first nuclear fleet submarine was which by using an American reactor entered service in 1963. The first all-British nuclear submarines were the two s. The USN submarine fleet has been all-nuclear powered for over two decades. The bulk of the USN's SSN fleet has been the ''Los Angeles''-class attack submarine. Designed during the Cold War the ''Los Angeles''-class boats ''raison d'etre'' was to protect USN carrier battle groups and to hunt Soviet Navy SSBNs before they could launch a fir ...
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Kithira
Kythira (, ; el, Κύθηρα, , also transliterated as Cythera, Kythera and Kithira) is an island in Greece lying opposite the south-eastern tip of the Peloponnese peninsula. It is traditionally listed as one of the seven main Ionian Islands, although it is distant from the main group. Administratively, it belongs to the Islands regional unit, which is part of the Attica region, despite its distance from the Saronic Islands, around which the rest of Attica is centered. As a municipality, it includes the island of Antikythera to the south. The island is strategically located between the Greek mainland and Crete, and from ancient times until the mid 19th century was a crossroads of merchants, sailors, and conquerors. As such, it has had a long and varied history and has been influenced by many civilizations and cultures. This is reflected in its architecture (a blend of traditional, Aegean and Venetian elements), as well as the traditions and customs, influenced by centuries ...
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Soviet Northern Fleet
Severnyy flot , image = Great emblem of the Northern Fleet.svg , image_size = 150px , caption = Northern Fleet's great emblem , start_date = June 1, 1733; Soviet iteration: August 5, 1933 , country = , branch = , type = Fleet , role = Nuclear deterrence; Naval warfare; Amphibious military operations;Combat patrols in the Arctic/Atlantic;Naval presence/diplomacy missions in the Atlantic and elsewhere , size = c. 32 surface warships plus additional support ships/auxiliaries c. 34+ active submarines , command_structure = , garrison = , garrison_label = , nickname = , patron = , motto = , colors = , colors_label ...
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P-1000 Vulkan
The P-500 ''Bazalt'' (russian: П-500 «Базальт»; en, basalt) is a turbojet-powered, supersonic cruise missile used by the Soviet and Russian navies. Its GRAU designation is 4K80 and its NATO reporting name is SS-N-12 ''Sandbox'', its upgraded version being the P-1000 Vulkan AShM SLCM. History Developed by OKB-52 MAP (later NPO Mashinostroyeniye), it entered service to replace the SS-N-3 Shaddock. The P-500 Bazalt was first deployed in 1975 on the , and was later added to both the and the s. A version of the P-500 Bazalt with improved guidance and engines is used on the s. The sixteen launchers dominate the decks of the class. Description The P-500 Bazalt has a 550 km range and a payload of 1,000 kg, which allows it to carry a 350 kt nuclear or a 950 kg semi-armor-piercing high-explosive warhead. The P-500 Bazalt uses active radar homing for terminal guidance, and can receive mid-course correction from the Tupolev Tu-95RTs Bear D, the Kamov K ...
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Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because there was no large-scale fighting directly between the two superpowers, but they each supported major regional conflicts known as proxy wars. The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary alliance and victory against Nazi Germany and Imperial Japan in 1945. Aside from the nuclear arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as psychological warfare, propaganda campaigns, espionage, far-reaching embargoes, rivalry at sports events, and technological competitions such as the Space Race. The Western Bloc was led by the United States as well as a number of other First W ...
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Sail (submarine)
In naval parlance, the sail (American usage) or fin (British/Commonwealth usage) (also known as a fairwater) of a submarine is the tower-like structure found on the dorsal (topside) surface of submarines. Submarine sails once housed the conning tower (command and communications data center), the periscope(s), radar and communications masts (antenna), though most of these functions have now been relocated to the hull proper (and so the sail is no longer considered a "conning tower"). When above the water's surface, the sail serves as an observation platform. It also provides an entrance and exit point on the submarine that has enough freeboard to prevent the submarine being swamped. Under water, the sail acts as a vertical stabilizer. In some submarines, the sail also supports diving planes (or fairwater planes), which are control surfaces used for underwater stability and steering.Office of Naval ResearchSubmarines - How They Work. Retrieved December 24, 2008. See also * Dorsal ...
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P-500 Bazalt
The P-500 ''Bazalt'' (russian: П-500 «Базальт»; en, basalt) is a turbojet-powered, supersonic cruise missile used by the Soviet and Russian navies. Its GRAU designation is 4K80 and its NATO reporting name is SS-N-12 ''Sandbox'', its upgraded version being the P-1000 Vulkan AShM SLCM. History Developed by OKB-52 MAP (later NPO Mashinostroyeniye), it entered service to replace the SS-N-3 Shaddock. The P-500 Bazalt was first deployed in 1975 on the , and was later added to both the and the s. A version of the P-500 Bazalt with improved guidance and engines is used on the s. The sixteen launchers dominate the decks of the class. Description The P-500 Bazalt has a 550 km range and a payload of 1,000 kg, which allows it to carry a 350 kt nuclear or a 950 kg semi-armor-piercing high-explosive warhead. The P-500 Bazalt uses active radar homing for terminal guidance, and can receive mid-course correction from the Tupolev Tu-95RTs Bear D, the Kamov Ka-25 ...
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Echo II Class SSGN
In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. A true echo is a single reflection of the sound source. The word ''echo'' derives from the Greek ἠχώ (''ēchō''), itself from ἦχος (''ēchos''), "sound". Echo in the Greek folk story is a mountain nymph whose ability to speak was cursed, leaving her able only to repeat the last words spoken to her. Some animals use echo for location sensing and navigation, such as cetaceans (dolphins and whales) and bats in a process known as echolocation. Echoes are also the basis of Sonar technology. Acoustic phenomenon Acoustic waves are reflected by walls or other hard surfaces, such as mountains and pr ...
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Echo 2 Missile Launch
In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. A true echo is a single reflection of the sound source. The word ''echo'' derives from the Greek ἠχώ (''ēchō''), itself from ἦχος (''ēchos''), "sound". Echo in the Greek folk story is a mountain nymph whose ability to speak was cursed, leaving her able only to repeat the last words spoken to her. Some animals use echo for location sensing and navigation, such as cetaceans (dolphins and whales) and bats in a process known as echolocation. Echoes are also the basis of Sonar technology. Acoustic phenomenon Acoustic waves are reflected by walls or other hard surfaces, such as mountains and pr ...
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Pressure Hull
A submarine hull has two major components, the ''light hull'' and the ''pressure hull''. The light hull (''casing'' in British usage) of a submarine is the outer non-watertight hull which provides a hydrodynamically efficient shape. The pressure hull is the inner hull of a submarine that maintains structural integrity with the difference between outside and inside pressure at depth. Shapes Modern submarines are usually cigar-shaped. This design, already visible on very early submarines, is called a "teardrop hull". It is structurally efficient for withstanding external pressure, and significantly reduces the hydrodynamic drag on the sub when submerged, but decreases the sea-keeping capabilities and increases drag while surfaced. History The concept of an outer hydrodynamically streamlined light hull separated from the inner pressure hull was first introduced in the early pioneering submarine Ictineo I designed by the Spanish inventor Narcís Monturiol in 1859. However, whe ...
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Missile
In military terminology, a missile is a guided airborne ranged weapon capable of self-propelled flight usually by a jet engine or rocket motor. Missiles are thus also called guided missiles or guided rockets (when a previously unguided rocket is made guided). Missiles have five system components: targeting, guidance system, flight system, engine and warhead. Missiles come in types adapted for different purposes: surface-to-surface and air-to-surface missiles (ballistic, cruise, anti-ship, anti-submarine, anti-tank, etc.), surface-to-air missiles (and anti-ballistic), air-to-air missiles, and anti-satellite weapons. Airborne explosive devices without propulsion are referred to as shells if fired by an artillery piece and bombs if dropped by an aircraft. Unguided jet- or rocket-propelled weapons are usually described as rocket artillery. Historically, the word ''missile'' referred to any projectile that is thrown, shot or propelled towards a target; this usage is still ...
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