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Author Topic: Indija ojačava podmorničku flotu  (Read 9101 times)
 
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duje
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« Reply #15 on: July 14, 2016, 07:22:22 am »

Indija namjerava unajmit rusku nuklearnu podmornicu klase akula II. Indijci već od 2012. godine upotrebljavaju unajmljenu podmornicu INS Chakra (S71) klase akula II (u Rusiji se je zvala Nerpa (K-152)) - desetogodišnji najam 670 milijona $. 

Vir: "Obramba" SLO
http://www.obramba.com/
13.07.2016.

Indija bo najela še drugo rusko jedrsko podmornico razreda akula II

INDIJSKA MORNARICA BO POVEČALA PODMORNIŠKO FLOTO Z DODATNO RUSKO PODMORNICO AKULA II

Indija se je z Rusijo dogovorila za zakup še druge jedrske podmornice razreda akula II (projekt 971) iz flote Ruske mornarice, je neimenovan vir zaupal ruskemu časopisu Kommersant.

O “podmorničarskem” poslu sta se državi dogovarjali že vse od leta 2013, kot kaže pa se bo sedaj tudi uresničil. Podrobnosti zaenkrat javnosti še niso znane, gre pa verjetno ponovno za 10-letni najem.

Indijska mornarica sicer že vse od 2012 uporablja najeto rusko jedrsko jurišno podmornico INS Chakra (S71) razreda akula II (v Ruski mornarici se je imenovala Nerpa (K-152)). Za 10-letni najem so Indijci odšteli okoli 670 milijonov dolarjev. Indija ima v svoji podmorniški floti še 10 ruskih jurišnih konvencionalnih podmornic razreda sindhughosh (razred kilo) in 4 nemške jurišne konvencionalne podmornice razreda shishumar (type-209).

Od februarja 2016 pa je operativna tudi prva v Indiji razvita jedrska balistična podmornica INS Arihant (S73) razreda arihant, ki so jo splavili v letu 2009. Indijska mornariška ladjedelnica Visakhapatnam bo v okviru projekta ATV (Advanced Technology Vessel), za katerega so namenili več kot 2.9 milijarde dolarjev, zgradila še 3 podmornice razreda arihant. Vse do začetka njihove operativne rabe pa bo Indijska mornarica vrzel skušala zapolniti z obema ruskima akulama.

Jurišne podmornice na jedrski pogon razreda akula (Projekt 971 schuka-B, NATO: typhoon) veljajo za najtišje na svetu, zaradi uporabe najnovejših tehnologij pri njihovi gradnji. Prve podmornice razreda akula I so vstopile v Sovjetsko mornarico leta 1986. Med leti 1984 in 1990 so izdelali 7 podmornic akula I, med leti 1987 in 2009 (Nerpa) pa 11 akula II improved (izboljšana). Ruska mornarica sedaj uporablja 11 podmornic tega razreda, 1 pa Indijska mornarica.

Podmornice razreda akula imajo dvojni trup, zunanji “lahki” in notranji “tlačni” trup, kar ima določene prednosti pa tudi slabosti, kot so večji vodni upor, zato je potreben močnejši motor.

Posebnost ruskih podmornic ščuka je kapljičasta struktura na vrhu smernega krmila na repu podmornice, v katerem je nameščen sonar, ki se ga lahko vleče za podmornico. Poleg tega imajo tudi hidrodinamični senzor, ki zaznava spremembe v temperaturi in slanosti. Podmornice akula imajo štiri torpedne cevi (533 mm) za torpede type 53 oz. rakete SS-N-15 strafish in štiri torpedne cevi (650 mm) za torpede type 65 oz. rakete SS-N-16 stallion, z njimi pa lahko polagajo tudi mine.

Pripravil: A. Knific, foto: YouTube


* podmornica-razreda-akula-II.jpg (402.38 KB, 900x608 - viewed 89 times.)

* podmornica-razreda-akula-II--642x336.jpg (33.35 KB, 642x336 - viewed 98 times.)
« Last Edit: July 14, 2016, 07:31:51 am by duje » Logged
MOTORISTA
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« Reply #16 on: June 17, 2019, 08:47:53 am »

Na drugoj podmornici Indijske RM klase Scorpene, INS Khanderi, otkriveni su problemi sa šumom koji stvaraju motori i propeler, a koji je mnogo viši nego što je planirano. Osim toga na podmornici je pronađeno još 35 ozbiljnih grešaka u izgradnji, koje bi mogle da dovedu do uništenja plovila u slučaju rata. ovo će samo dovesti do daljeg kašnjenja programa, koji je i ovako već 5 godina u zaostatku.

Quote

Serious defects in India Navy's Scorpene submarines, project to get delayed
These defects can't be addressed quickly as the tests can only be conducted in the calm sea or as described by the Navy "Sea State — 1".
By : Ashish Shukla Jun 15, 2019

India's ambitious Project-75 which involves the manufacturing of Scorpene submarines in Mazagon Dock (MDL), Mumbai, is expected to get further delayed as the Indian Navy has identified serious problems in the second vessel, INS Khanderi. The first vessel in the project, INS Kalvari was commissioned in navy on December 14, 2017. The project includes the commissioning of INS Khanderi, is already running late by over 5 years is further expected to delayed by a year due to the latest problem identified by the navy. The vessel will not be commissioned into the Navy unless the defects and deficiencies are fully rectified, the Navy has clarified.

As per a report published in Business Standard, the Ministry of Defence is fully supporting the Navy's argument that MDL and its technology partner, French warship builder Naval Group deliver a fully functional and defect free vessel. A senior naval official reiterated "The liability of delivering a fully functional submarine is that of Naval Group. If we accept the boat with shortcomings, the liability would be on us."

The biggest issue which the Indian Navy has detected in INS Kahnderi is the unduly high level of noise by its engines and propellers. An element of surprise is the major criteria for a submarine to deliver a deadly blow during wartime. To detect such sounds, generally, the navies mount sonar detectors on aircraft, warships, and submarines to look for sounds emitted by enemy submarines. Once detected a submarine could become easy prey to the enemy torpedo.

Shockingly, it is not the only problem which INS Khanderi is facing, the Navy has highlighted 35 other defects which could cause severe damage during wartime. Further, these defects can't be addressed quickly as the tests can only be conducted in the calm sea or as described by the Navy "Sea State — 1". Under the Project -75, MDL will manufacture six Scorpene class submarines, the next generation diesel submarines for Indian Navy under technology transfer from Naval Group of France. The $3.75 billion worth deal was signed way back in 2005.  The induction of all submarines is expected to be completed by 2020 but with multiple technical issues, the project is running late by over 5 years.


Izvor: www.ibtimes.co.in
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kumbor
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« Reply #17 on: June 17, 2019, 10:50:51 am »



Smanjenje šuma je suštinski važna osobina svake podmornice. Ne znam da li Scorpene za Indiju uključuje MESMA AIP, ali ako da, onda mogu reći da je i taj sistem izvor šuma.

Problemi sa francuskim tipom podmornice mogu dalje okrenuti Indiju ka ruskim podmornicama, koje ionako koriste već decenijama.
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« Reply #18 on: April 23, 2022, 07:22:12 am »

У индијском бродоградилишту Mazagaon Dock Shipbuilders Limited (MDL) поринута је шеста и последња подморница класе Scorpene која се гради за потребе индијске ратне морнарице.

[ Attachment: You are not allowed to view attachments ]

Очекује се да увођење шесте подморнице класе Scorpene, назване  INS Vagsheer, у оперативну употребу уследи након извршених тестирања, што би према плановима требало да се догоди у другој половини 2023. године. Индијска ратна морнарица тренутно у оперативној употреби поседује четири подморнице ове класе (INS Kalvari, INS Khanderi, INS Karanj и INS Vela), док се пета подморница, INS Vagir, налази на испитивањима.


* INS-Vagsheer-1038x778.jpg (175.35 KB, 1038x778 - viewed 2 times.)
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