The second Indian submarine project Scorpene out to sea

According to the blog bmpd with reference to The Indian Navy, June 1, 2017 left the Mazagon Dock Limited (MDL) in Mumbai and first went to sea for factory sea trials, the second for the Indian fleet Scorpene Project diesel-electric submarine - S 51 Khanderi (serial number 11876).

Its construction was carried out in accordance with the contract from 2005 of the year with the French shipbuilding association DCN (now DCNS) with the initial cost of 3,2 billion dollars, providing for the licensed construction of the 6 submarine of the Scorpene project (the Indian designation is 75 project).

According to the terms of the agreement, it was assumed that the submarines would be built on MDL with the assistance of DCNS with their delivery during 2012 – 2018. But due to technological problems in India and disagreements with the French side, the implementation of the program was significantly delayed. At the start of 2010, DCNS entered into an additional contract to assist the Indians in the supply of components for these boats for a total of $ 413 million.

The head Indian submarine of the Scorpene S 50 Kalvari submarine was laid out on MDL 1 on April 2009 of the year, taken out of the 6 workshop on April 2015 of the year, launched on October 27 of 2015 of the year, and began the 25 test of March on the 2016 of the year. Its delivery to the fleet is scheduled for July-August 2017. The second Indian boat of this type, the S 51 Khanderi, was laid on MDL in October 2011 of the year, was launched on 12 in January of 2017, and is now being put to the test. The Indian Navy is officially expected to surrender at the end of the 2017 of the year, but apparently this will happen already in the 2018 of the year.

Four submarines are under construction. The last two of them are supposed to be equipped with the Indian air-independent power plant being developed by DRDO (the principle of its operation is based on the production of hydrogen by reforming diesel fuel).

The situation with the main armament of Indian Scorpene - torpedoes is unclear. To date, only MBDA Exocet SM39 Block 2 anti-ship missiles have been acquired.

At 2013, an agreement was signed for the cost of 300 million for the purchase of Whitehead Alenia Sistemi Subacquei (WASS) 98 torpedoes from the Italian Finmeccanica group (now Leonardo), part of Whitehead’s Alenia Sistemi Subacquei (WASS). Black Shark 533 caliber mm. However, due to the scandal associated with the sale of India’s AW101 helicopters to another AgustaWestland company that was part of Finmeccanica, the Italian group, with all its subsidiaries, was included in the Indian military blacklist of contractors.

A new tender for the purchase of 533-mm torpedoes was announced. It is believed that the German Atlas Elektronik with a torpedo has the greatest chances SeaHake... At the beginning of 2014, this company signed an agreement with the Indian private company Pipavav Defense & Offshore Engineering Company (PDOC) to establish a joint venture to promote SeaHake torpedoes to the Indian fleet. It is planned that the assembly of most of the torpedoes will be organized at PDOC.

Comments

[DEPARTMENT]

The Indians have collected weapons from around the world, how do they understand it ...?

[MPK105]

But who knows how to understand, they know better ... And the boat is so-so ...

[cost]

the most famous Indian submarine is the legendary Nautilus captain Nemo

[Boa kaa]

The last two (NAPL) of these, it is proposed to equip the Indian air-independent power plant being developed by DRDO (the principle of its operation is based on the production of hydrogen by reforming diesel fuel).

It’s strange ... Earlier, I didn’t hear about the work of the Indians in reforming the DT ... Surely ours threw them technical documentation with a joint development agreement? Well, then WAATING - EDGE!

[Samaritan]

quote = Boa constrictor KAA] Surely ours gave them technical documentation [/ quote]
The paddling men fussed:
A contract worth $ 3,2 billion for the construction of 6 submarines was signed by the Indian side with the French company DCNS in 2005. [

[Boa kaa]

Quote: Samaritan

The paddling men fussed:

Business ... However, the French have another VNEU - a steam turbine, such as MESMA. Diesel fuel reform is out of the question:

Two of the three modifications of the Scorpena family have a combined power plant, which includes an air-independent power plant of the MESMA type.
MESMA (Submarine Autonomous Propulsion System) is a closed-cycle steam turbine power plant. To obtain steam, it uses thermal energy from burning in a special chamber of fuel (most likely, ordinary ethanol, although a number of sources call it diesel) and oxygen. The latter is stored in liquid form under low pressure in a special cryogenic tank and is fed into the chamber in automatic mode already in gaseous form. The oxygen tank was developed by Air Liquide on the basis of the analogue used in the Arien launch vehicle. The output power of VNEU can be adjusted by controlling the level of supply of the components of the gas mixture into the chamber.
The resulting thermal energy is converted into electrical energy through the use of the so-called “Rankin cycle” - an ideal thermodynamic circular process in which heat is converted into work or vice versa. The work is carried out by installing as a part of a steam generator made mainly of nickel alloys, low-noise high-speed turbine generators of alternating current and made of a nickel-aluminum-bronze alloy condenser (actually, a secondary circuit cooler).
The steam drives a steam turbine having a rotation speed of up to 10 thousand rpm and a rated output power of at least 200 kW. This energy is enough for the development of the Scorpen underwater course 4 knots, the duration of the voyage in this case will be about 250 hours. To achieve higher speeds will have to use traditional batteries. However, according to DCN experts, the speed of the VNEU can be increased by increasing the power of the turbine and power generators.
The total amount of desalinated water in the "steam-condenser" circuit is just over 500 l.
All rotating or moving mechanisms are installed using special two-stage shock absorbers. The installation is controlled from the general console of the Shipmaster submarine control system in the central post.
The use of this VNEU on a submarine allows to increase the duration of continuous scuba diving by 3 - 4 times in comparison with a traditional diesel-electric power plant. This makes it possible to stay under water without surfacing for at least 18 days, and the excess electricity generated by the VNEU can be used to recharge the batteries.

http://ship.bsu.by/ship/104410.