Advanced Technology Vessel (ATV)
The nuclear haves are increasingly relying on sea-based nuclear deterrence in preference to land and air segments. India has a number of foreign-produced cruise missile systems in its arsenal, to include Exocet, Styx, Starbright, Sea Eagle, and perhaps the Russian Sunburn supersonic missile. It also has some indigenous cruise missile systems under development to include the Sagarika and Lakshya variant.
当今各大国都在比发展陆基和空基更优先地发展海基的核力量。印度拥有大量的进口的巡航导弹，包括Exocet, Styx, Starbright, Sea Eagle和大量的
俄罗斯的sunburn超音速导弹。她还配有一些不太为人所知的自己产的巡航导弹如Sagarika 和 Lakshya。
The Sagarika (Oceanic) began development in 1994 as a submarine-launched cruise missile (SLCM) which will have a range of at least 300 kms (a few claim 1000 kms); it was projected for deployment around 2005. The program has met with considerable delays and the missile is not expected to become operational before 2010. Tt will probably arm India's nuclear submarine, the Advanced Technology Vessel (ATV).
India is a nation that fights for entering the select group of countries that build nuclear powered submarines. Its program ATV, or Advanced Technology Vessel, was initiated in 1974. But aftre three decades it still had not presented results that could modify the current picture of the navies with nuclear propulsion.
India has been working actively since 1985 to develop an indigenously constructed nuclear-powered submarine, one that was based on the Soviet Charlie II-class design, detailed drawings of which are said to have been obtained from the Soviet Union in 1989. This project illustrates India's industrial capabilities and weaknesses. The secretive Advanced Technology Vessel (ATV) project to provide nuclear propulsion for Indian submarines has been one of the more ill-managed projects of India.
Although India has the capability of building the hull and developing or acquiring the necessary sensors, its industry has been stymied by several system integration and fabrication problems in trying to downsize a 190 MW pressurized water reactor (PWR) to fit into the space available within the submarine's hull. The Proto-type Testing Centre (PTC) at the Indira Gandhi Centre For Atomic Research. Kalpakkam, will be used to test the submarine's turbines and propellers. A similar facility is operational at Vishakapatnam to test the main turbines and gear box.
According to some accounts India planned to have as many as five nuclear submarines capable of carrying missiles with nuclear warheads. The Indian nuclear powered attack submarine design is said to have a 4,000-ton displacement and a single-shaft nuclear power plant of Indian origin. Once the vessel is completed, it may be equipped with Danush/Sagarika cruise missiles and an advanced sonar system. However, according to some analysts the most probable missile for the Indian submarine would be the Yahont anti-ship cruise missile designed by NPO Mashinostroyeniya.
With the participation he accomplishes of involved Russian scientists and technician in the diverse phases of the program, has possibility of that the first Indian submarine with nuclear propulsion, with 9,400 tons of displacement when submerged and 124 meters of length, can be operational in 2009, will have been launched in 2006-2007.
By 2004 it was reported that the first ATV would be launched by 2007. At that time it was reported that it would be an SSGN and displacing some 6,500 tons, with a design derivative of Russia's Project 885 Severodvinsk-class (Yasen) SSN. The ATV multirole platform would be employed for carrying out long-distance interdiction and surveillance of both submerged targets as well as principal surface combatants. It would also facilitate Special Forces operations by covertly landing such forces ashore. The ATV pressure hull will be fabricated with the HY-80 steel obtained from Russia.
This way would have the possibility of multiple performance: it could use missiles of cruise of average reach (1,000 km), ballistic missiles of short reach (300 km), torpedoes and mines, besides participating of operations special. If it will have success in this taken over on a contract basis, will be valid to assume that the Indian Fleet will count on four to six of these submarines until the year of 2020.
Vessel Type Submarine
Program Advanced Technology Vessel (ATV)
Total Number 4-6
Unit Cost (US$) 1B (Est.)
Builder Vishakapatnam Naval Dockyard (VND) with assistance from Mazagon Dock Ltd. (MDL).
Displ. Tons 5,500 – 6,500 (Est.)
Length 100m (328ft) (Est.)
Beam 15m (49.2ft) (Est.)
Draft 9m (29.5ft) (Est.)
Machinery Nuclear: one pressurized water reactor (PWR) using 20% enriched uranium fuel (160-190MW); one turbine (47,000hp/70MW); one shaft; one 7-bladed, high-skew propeller. (Est.)
Speed (Knots) 12-15 (surfaced) 30-34 (submerged). (Est.)
Diving Depth 300 m (984.2ft). (Est.)
Weapons Torpedoes: Six 21 inch (533mm) torpedo tubes. Mines. A total capacity (mines, torpedoes, and missiles) of 30 weapons. (Est.)
Missiles Submarine launched cruise missiles (SLCM) using either a vertical launch system or a torpedo tube launch, surface-to-surface missiles (SSMs), and a submarine launched ballistic missile (SLBM). (Est.)