Indian Navy News & Discussion - 03 July 2018

Rakesh · Post by **Rakesh** » 17 Feb 2021 22:21

https://twitter.com/strategic_front/sta ... 44896?s=20 ---> NMRL had developed & deployed CO2 scrubbers for Indian SSBNs. The development of AIPs for SSKs will increase their underwater endurance, thus creating a need for CO2 scrubbers on SSKs too. The Indian Navy's Kalvari class SSks will likely be the 1st to receive the AIP & scrubber.

Rakesh · Post by **Rakesh** » 17 Feb 2021 22:48

https://twitter.com/TheWolfpackIN/statu ... 31296?s=20 ---> Final production batch of Barak-8 LRSAM handed over to Indian Navy.

kit · Post by **kit** » 18 Feb 2021 01:39

Quite plainly the Chinese Himalayan adventure was to contain India in its northern front and not to expand in the sea ., read if there is no expeditionary capability envisioned for the Navy ( as in an Aircraft carrier group for example) as a result of this they have won

Rakesh · Post by **Rakesh** » 19 Feb 2021 23:57

How a "Naval Gun" Works (MK-45 5-inch Gun)

D.Mahesh · Post by **D.Mahesh** » 20 Feb 2021 22:28

kit wrote:

Quite plainly the Chinese Himalayan adventure was to contain India in its northern front and not to expand in the sea ., read if there is no expeditionary capability envisioned for the Navy ( as in an Aircraft carrier group for example) as a result of this they have won

Surprised how little - even BR Gurus (a term that excludes 99% of BRForum posters now) - have not read Adm.Chatterjee's policy doc

YashG · Post by **YashG** » 21 Feb 2021 00:39

kit wrote:

Quite plainly the Chinese Himalayan adventure was to contain India in its northern front and not to expand in the sea ., read if there is no expeditionary capability envisioned for the Navy ( as in an Aircraft carrier group for example) as a result of this they have won

I find the reason very superflous. If we build a carrier or not depends more on the money we have. But even if I for a moment assume that now we will divert some funds to Himalayan defense & not build a carrier -> on the other hand, many indigenous projects [Might have] got accelerated due to this. IN 5 years from now, some of this acceleration - will probably save enough FDI [Assumption], to help us offset funds that this distraction might have diverted. Or otherwise will increase our preparedness.
Then so many other perils.
It also wud give impetus to Quad that would defeat the purpose of restraining India from IOR [Unless China has not negotiated India to go slow on Quad].

All in all, RoI not good enough. It was misadventure.

Cain Marko · Post by **Cain Marko** » 21 Feb 2021 10:58

kit wrote:

Quite plainly the Chinese Himalayan adventure was to contain India in its northern front and not to expand in the sea ., read if there is no expeditionary capability envisioned for the Navy ( as in an Aircraft carrier group for example) as a result of this they have won

This dude is a git and like others of his ilk in the media pushes a western agenda albeit unlike shooklaw types, he is more subtle.

Pratyush · Post by **Pratyush** » 21 Feb 2021 11:49

On the matter of the Chinese think tank's 2013 publication and Shekhar Gupta's program. I got the impression watching that show that he was ignorant of such publication by PRC. Once he got to learn about it he was excited to learn about the PRC thought process and shared the same on you tube.

Their was another program hosted by strategic news international by Surya Gangadharan with another very seasoned China watcher. Who stated that he was aware of of this publication and had collected that report every time it was published.

Watching both the programs it became clear that a subject matter expert will have a different take on the topic. As compared to the take of a non expert.

YashG · Post by **YashG** » 21 Feb 2021 14:33

Actually the only correct explanation of this Chinese intrusion was that it was stupid. I think so many of us are tying us in knots to figure out why the Chinese did this. Actually they were just plain stupid - Ananth krishnan who is known to be knowledgeable on China when asked why Chinese did this. He just said he doesn't know still. Now we have our fingers back but Chinese lost -
1. The infallibility - Doklam might have looked like a small fry but this incident played under full light actually showed that India stood up to Chinese. Every se nation will take notice.
2. Chinese xpanies lost market share in India, apps had to go and many govt. Contracts
3. This young indian generation is now fully suspicious of China
4. Just the nudge India reqd. For preparedness - idk am I imagining or missile development has caught some pace in last 6-7 months
5. Quad is back with force

There is more.

Chinese lost a lot more, they are stupid ppl. They wish hv done better by playing along modi. Modi had no plans to cause Chinese pain.

kit · Post by **kit** » 23 Feb 2021 21:51

https://economictimes.indiatimes.com/ne ... 170860.cms

Cochin Shipyard on Tuesday said it has emerged as the lowest bidder for a Rs 10,000-crore contract by the Indian Navy, to build Next Generation Missile Vessels.

On 2 January 2015 the Indian Ministry of Defence (MOD) issued a Request For Information (RFI) under Buy Indian and Make Indian category for six new missile corvettes by initiating the Next Generation Missile Vessels (NGMVs) programme. Vendors who chose to respond to the RFI must meet "minimum qualifying criteria" mainly, shipyard should have already built "vessel(s) of similar specifications". An RfP worth $2.2 billions was filed by government of India to various Indian shipyards seeking for various warships including six missile boats.

Design and description
The RFI suggests that ships will be about 2,000-2,500 tonnes each.The new ships will have a complement of 11 officers, 2 trainee officers and 80 sailors. The range will be at least 2,800 nautical miles (5,200 km; 3,200 mi) (1,000 nmi, 1,900 km, 1,200 mi at full speed) and speed performance will be 25 knots (46 km/h; 29 mph) (max speed of 35 knots, 65 km/h, 40 mph). The ships will carry eight surface-to-surface missiles, a full-fledged surface-to-air missile (SAM) system with point defence capabilities and a 15 km (9.3 mi) range MR gun system. The ships will also have radar and electro-optically (EO) guided close-in weapon systems (CIWS) with 360-degree anti-missile defence.

Philip · Post by **Philip** » 24 Feb 2021 08:40

2000t? Russian corvettes of around 1000t like Buyan with their 2500km Kalibir missiles carry much more armament than the specs. given for our new vessels. There's a superb Ru design with a flight deck for a Kamov sized ASW helo,with the hangar below deck for around 2K t.

True,we need a new corvette class of around 1500t to 2000t, multi-role that includes an ASW helo/ UCAV, a 76/100 main gun with ER shells, an MBU launcher,8- SSMs,16-SAMs, AS TTs,plus a hard- kill anti-torpedo system like Paket, TAS, BPDMS/ 30mm gatlings, with a speed of 30kts.

As to the Chin gameplan.Yes, it is most worried about the IN joining a militarised Quad and would like to divert our attention from the seas. One reason why the Himalayan gambit was carried out,but it was a rude shock to see how vulnerable we are in the mountains especially in the Ladakh/ Aksai Chin area where a Sino- Pak JV could be a very serious problem for us.
Our sadly myopic MEA Muppets,Jaisankar included, have yet to fathom that the Europeans conquered India from the sea! Something I've been saying ad nauseum to every desi babu for decades. With a paltry piece of the budget,the IN has done the maximum indigenisation and is the KEY and only branch of the service that can decisively defeat both Pak and the Chins in the IOR as of today. But this is fast disappearing when you see the massive naval strength of China today and the even more gargantuan ship and sub- building iinfrastructure,esp. subs of all types nearing completion.

Carrier vulnerability to newer super and hyper missiles apart from Chin BMs,now being stationed in Tibet with a 5K range, is growing by the day,why even the USN are looking towards building new light carriers to add to numbers and which can deal with littoral spats better and cheaper than supercarriers required for expeditionary wars like the invasion of Iraq,Libya,etc.

The GOI must increase the naval budget substantially, especially doubling the sub inventory which will allow us by stealth to take the fight to the enemy in the Indo- China Sea,cut off his fuel supplies and bomb the daylights out of the bases/ logistic facilities his IOR rent-boys have given him in tribute. We can stall any Chin aggression in the mountains,the IA has proved that yet again,but we must not be swift to withdraw from key ridges, etc.,hard- won with the blood of our soldiers.

John · Post by **John** » 24 Feb 2021 09:02

Philip wrote:2000t? Russian corvettes of around 1000t like Buyan with their 2500km Kalibir missiles carry much more armament than the specs. given for our new vessels. There's a superb Ru design with a flight deck for a Kamov sized ASW helo,with the hangar below deck for around 2K t.

Once again there is no plans to purchase Kalibir and these vessels won't have Russian U-VLS that can fire Klub family of missiles. Buyan themselves don't fit the requirement as they are not capable of even 30+ knots speed and have much lower range. There is really no point in wasting additional $$ in a Russian design when this can be done in house.

Philip · Post by **Philip** » 24 Feb 2021 10:53

No one is advocating buying Buyan,etc. But look at the concepts and weaponry package . Buyan did the biz. in Syria from the Caspian Sea! What diff. did the vessel's speed have on the outcome? UVLS that can carry at least the Klub series,which we already have, can provide one with flexibiliy of role depending upon the mission. A 2000t corvette can as I've mentioned be v.effective in a multi-role capability,avoid sending in a larger warship on less intensive duties and provide a wider area of operations "tous azimuth" given the larger numbers.

There are several articles by eminent starred veterans bemoaning the poor armament of our warships,in particular the very small nos. of SAMs on the P-15s and P-17s.The P-28 has already come in for criticism. Even the 16 ASW SW corvettes are being criticised for their inability to have a degree of multi-tasking and have less armament than the 500t Abhay/ Pauk class they intend to replace! Our K class missile corvettes possess zero ASW capability. Massed salvoes of missiles ,saturated combined attacks are the order of the day,not solitary missiles. Unless our principal surface combatants are equipped with a layered defence with a large no. of anti-air/ missile rounds, the likelihood of losses increases. A comparison of equiv. size PLAN DDGs and FFGs will be illuminating,also remembering that the PN is being beefed up on a war footiing with their latest Chin acquisitions,warships and subs.

Philip · Post by **Philip** » 24 Feb 2021 18:12

Signing of two defence pacts with the Maldives and Mauritius is a good step by the GOOI, they were frankly "low hanging fruit", but such agreements must be backed by brute naval force.

The nations that cock-a-snoop to us are those whom we must swing our way at any cost.Sri Lanka in particular, just a couple of dozen miles away from us that is being turned into a de-facto Chin colony, need far better aggressive diplomacy and the reading of the riot act in particular to the island's autocrat who stands accused of heinous war crimes akin to genocide. The difficult states are the ones to be maximum attention.

Aditya G · Post by **Aditya G** » 24 Feb 2021 18:42

As far as missile corvettes are concerned, the first question is what is the Navy's requirement?

Are we looking for MiG-21 style interceptors in the sea who dash off at high speed with missiles or a vessel which can patrol for longer duration and kill enemy ships if required?

IMHO the former type of ship - the Osas and Veer class is no longer required in our context thanks to P-8Is and shore based missile batteries with 300 km + range. We need a more capable and newer version of Project-25 ships. My theory are informed by the conservative nature of the RFI.

We are obviously going to get a more capable missile (Brahmos vs Uran) and PDMS (hopefully VL-SRSAM vs none). Remains to be seen if the class will have a hangar or not.

Pratyush · Post by **Pratyush** » 24 Feb 2021 19:53

It appears to be a Kora class replacement.

John · Post by **John** » 25 Feb 2021 05:57

Philip wrote:No one is advocating buying Buyan,etc. But look at the concepts and weaponry package . Buyan did the biz. in Syria from the Caspian Sea! What diff. did the vessel's speed have on the outcome?

Firing cruise missiles at bunch of jihadis armed with ak47 is not an achievement and unless we plan on adventures in Middle East this not relevant to us. These vessels are meant for Ashw and need to be able to catch up and engage a opponent vessel and be able to out run any enemies fleet. So yes speed is critical for that role.

UVLS that can carry at least the Klub series,which we already have, can provide one with flexibiliy of role depending upon the mission.

Only first batch of Talwar and Shivalik have Russian U-VLS everything has L&T VLS which is not compatible with Klub.

Rakesh · Post by **Rakesh** » 25 Feb 2021 08:27

https://twitter.com/strategic_front/sta ... 70018?s=20 ---> IN's Kamorta class ASW corvettes use Wärtsilä's 5 bladed Controllable Pitch Propellers (CPPs). CPPs provide many advantages over standard propellers. CPP production at Khopoli plant near Mumbai started from late 2007. Initially all CPPs produced in the plant were meant for export.

Rakesh · Post by **Rakesh** » 25 Feb 2021 08:35

https://twitter.com/strategic_front/sta ... 15169?s=20 ---> ABHAY/HMS-X2 compact hull mounted sonar is a derivative of the HUMSA sonar designed for small surface ships. It was inducted into the Indian Navy in 2016. HMS-X2 is small enough to be mounted on naval surface drones which seems to be the way forward in ASW/mine warfare missions.

Prem Kumar · Post by **Prem Kumar** » 25 Feb 2021 10:50

^^ Super cool. Can be fit into Coast Guard patrol vehicles, UUVs, for harbor defense etc. We need to proliferate "sensors", which can be separated from the shooters like SMART, ASW etc.

Rakesh · Post by **Rakesh** » 25 Feb 2021 20:37

https://twitter.com/strategic_front/sta ... 82594?s=20 ---> Wärtsilä's 5-bladed Controllable Pitch Propellers (CPPs) have been used on various Indian ships. The propellers used are of various sizes, based on the size of the ship. Unsurprisingly, the 40,000+ ton aircraft carrier INS Vikrant (IAC-1) uses the largest (20m wide) propellers.

Rakesh · Post by **Rakesh** » 25 Feb 2021 20:40

Cochin Shipyard bags Rs 10,000-crore Navy order for six missile vessels
https://www.business-standard.com/artic ... 606_1.html
23 Feb 2021

Cochin Shipyard on Tuesday said it has emerged as the lowest bidder for a Rs 10,000-crore contract by the Indian Navy, to build Next Generation Missile Vessels. The state-owned company has emerged as a forerunner in the Indian shipbuilding and ship repair industry that can build and repair the largest vessels in India.

"At the meeting held today (February 23) at the Ministry of Defence, New Delhi, Cochin Shipyard Ltd (CSL) has been declared as L1 (the lowest bidder) in the tender floated by the Indian Navy for construction of six... Next Generation Missile Vessels (NGMV)," CSL said in a regulatory filing to the BSE. The estimated order value is around Rs 10,000 crore, the company said.

mody · Post by **mody** » 27 Feb 2021 15:32

Philip wrote:No one is advocating buying Buyan,etc. But look at the concepts and weaponry package . Buyan did the biz. in Syria from the Caspian Sea! What diff. did the vessel's speed have on the outcome? UVLS that can carry at least the Klub series,which we already have, can provide one with flexibiliy of role depending upon the mission. A 2000t corvette can as I've mentioned be v.effective in a multi-role capability,avoid sending in a larger warship on less intensive duties and provide a wider area of operations "tous azimuth" given the larger numbers.

There are several articles by eminent starred veterans bemoaning the poor armament of our warships,in particular the very small nos. of SAMs on the P-15s and P-17s.The P-28 has already come in for criticism. Even the 16 ASW SW corvettes are being criticised for their inability to have a degree of multi-tasking and have less armament than the 500t Abhay/ Pauk class they intend to replace! Our K class missile corvettes possess zero ASW capability. Massed salvoes of missiles ,saturated combined attacks are the order of the day,not solitary missiles. Unless our principal surface combatants are equipped with a layered defence with a large no. of anti-air/ missile rounds, the likelihood of losses increases. A comparison of equiv. size PLAN DDGs and FFGs will be illuminating,also remembering that the PN is being beefed up on a war footiing with their latest Chin acquisitions,warships and subs.

Phillip, the Indian Navy always insists on very good sea keeping capabilities for all its ships. Hence, many times we find the size of the ship to be large, as compared to the weapons that it carries. The Buyan class can operate in the Caspian sea and is also used by sailing up river. Indian missile corvettes will be used mainly in the Arabian sea and northern Indian Ocean. I don't a Buyan class type vessel, will be suitable for IN operations, unless we plan to tow the ships to get them within range of the targets, like we did withe OSA missiles boats in 1971.

Would like higher greater amount of armament on the missile corvettes, though, if possible.
For 2,000-2,500 ton ship, it would be awesome, if we can fit 8 Brahmos-NG, 8 LR-LACM, 16 VL-SRSAM along with a BHEL SRGM and other small arms that the Navy wants, along with hangar for 1 ALH helo.

John · Post by **John** » 27 Feb 2021 19:45

mody wrote:For 2,000-2,500 ton ship, it would be awesome

Have we got information to indicate it's tonnage will be 2000 tons the RFI stated a crew of 80 which indicates a ship with displacement of around 1000 tons (which would place it between Veer and Kora class).

yensoy · Post by **yensoy** » 27 Feb 2021 20:15

John wrote:
mody wrote:For 2,000-2,500 ton ship, it would be awesome
Have we got information to indicate it's tonnage will be 2000 tons the RFI stated a crew of 80 which indicates a ship with displacement of around 1000 tons (which would place it between Veer and Kora class).

There is a strong and deliberate move towards more automation which may explain the low crew count. I will not be surprised if it is in 2000t+ class, given the desire to go with a larger ship for better seaworthiness.

John · Post by **John** » 27 Feb 2021 20:36

There are need to be lot of improvements to get that level but given that these are not expensive vessels and Kamorata which are just as modern (more expensive) having complement of 190 while displacing around 3k tons. I just don't see this being even half that size.

srai · Post by **srai** » 28 Feb 2021 02:17

^^^

The other thing to look at is the contract size of Rs10,000 crore for 6 NGMV. Put that together with crew complement of 80 and 5000km range figures, it would indicate roughly half the size of a P-28 class. So around 1500t, which would be similar to Kora class.

titash · Post by **titash** » 28 Feb 2021 03:11

I recall the RFI asking for a 2000-2500 ton vessel with PDMS

John · Post by **John** » 28 Feb 2021 03:27

titash wrote:I recall the RFI asking for a 2000-2500 ton vessel with PDMS

I can no longer find the RFI but I recall the displacement just said " As per design" but I believe some of designs that were rumored to be offered were around 2500 tons which lead to confusion.

Anujan · Post by **Anujan** » 28 Feb 2021 04:40

Article based on the RFI

http://www.spsnavalforces.com/ebook/46042015.pdf

Range and Speed
The range of the ship should not be less than 2,800 nautical miles (about 5,185 km) at sustained economical speed and 1,000 nautical miles (1,852 km) at maximum speed. The maximum speed of the ship should not be less than 35 knots (about 65 kmph). The maximum sustained speed should not be less than 25 knots (about 46 kmph). The ship should be capable of operating at low speed of 10 knots for at least eight hours continuously. Restriction in engine hours should not be an overbearing consideration, to enable flexibility in tasking.

Endurance
The ship should be able to sustain at sea at economical speed for a minimum of 10 days without Operational Turn Around, with 25 per cent reserve fuel remaining on board. The ship should also have the ability to undertake astern fuelling from tankers/capital ships to increase its endurance at sea.

.....

The RFI on NGMVs leaves out specifics of displacement, though it appears that it could be a 2,000-2,500 tonne vessel, a class smaller than the Kamorta class ASW Corvettes, indigenously designed by DGND (SSG) and built by the Garden Reach Shipyard and Engineers Limited, Kolkata, but larger than the Kora and Khukri class corvettes also from the GRSE stables. NGMVs could well be an advanced version of Goa Shipyard Ltd. built Saryu class, NOPVs but with powerful weapons package to include SSMs, PDMS, AMD capabilities, etc. However, as against Saryu class, NOPV fitted for carrying Dhruv, light combat helicopter, NGMV does not cater for a helicopter on board. Nevertheless the NGMVs profile will make the platform very potent and ideally suited for LIMO deployments.

John · Post by **John** » 28 Feb 2021 05:34

^ Yes the author jumps to the conclusion and looks like other media picked it up as the displacement when in reality there was no such mention by RFI. I am leaning towards a considerably smaller vessel we will see what design Cochin is using.

titash · Post by **titash** » 28 Feb 2021 06:25

https://www.google.com/url?sa=t&source= ... 4471172267

Here is the RFI for the Next Gen OPV.

6 units to be procured.

More capable than the Saryu class and clearly intended to be put in harm's way. At least as part of a battle fleet.

1) Lynx U2 fire control radar/EO systems to control the AK630 and 76 mm gun
2) ASW Torpedo Decoy Mareech
3) Kavach chaff
4) 2x VSHORADS specified for AMD... probably VLSRSAM
5) Mine warfare capable through modular payload
6) RPV Ops + 15 ton helicopter capable deck
7) LWT storage in armoury

Aditya G · Post by **Aditya G** » 28 Feb 2021 15:45

^ This could easily be a 2000 - 2500 ton ship if the ask is to include a hangar as well. It might be the case else why would you ask for LWT storage. Could be smaller at 1500 - 2000 tons with just a helipad. I doubt any smaller as newer ships with stealth shaping tend to have a lot of volume and steel weight.

Hangars themselves may not be heavy but having aviation facilities aboard has an effect on the overall dimension, cost and crew size of the ship. For this reason Australia has not gone for it on their upcoming Arafura class OPV.

Will be exciting to see what this class looks like!

I am also wondering if the design will have diesels or GTs. The RFI specs dictate a fairly high top speed of 35 knots which suggests a CODAG arrangement. Perhaps a single GT and diesel config?

Edit: Titash, I have the RFI document with me and I don't see any reference to RPA or Helicopter or LWT. Are you referred to the correct document? Where can I upload the PDF? I think you may have referred to NGC program

Philip · Post by **Philip** » 01 Mar 2021 20:31

A better armament fit,but it still has no hard-kill anti-torpedo system like Paket aboard the latest Ru wsrships. A 15t helo would be able to carry anti-ship ASMs in addition to ASW torpedoes and depth charges. Good to have an anti-missile system plus gatlings. A provision for but not fitted for ASW rockets would add icing tothe cake.

mody · Post by **mody** » 03 Mar 2021 13:17

With the INS Karanj set the to join the navy on 10th of March, the 4th sub in sea trails, 5th in harbour trials and the last 6th Vagsheer is advanced stage of final fitment, the time to order an additional 2-3 Scorpene subs is now. Especially as the DRDO AIP unit is also coming along the new order for 2-3 subs can be planned from day 1 with the AIP unit. Some minor design changes can also be made, if required, to offset the data leak fiasco.
Maybe a design change to accommodate the Varunastra torpedo can be considered.
Letting the assembly line idle now with the P75I still some years away from starting production, would be criminal.

Also, get the Italians to co-operate a little more on the Augusta Westland case and lift the ban on importing the Black Shark torpedoes. For 6 subs minimum 108 torpedoes would be required, assuming 18 for each sub. This would be a decent order for a struggling economy.

chetak · Post by **chetak** » 07 Mar 2021 16:25

^^^^^^^
To continue mody ji's post above, some more details

Indigenous 'Made in India' Submarine INS Karanj is to be commissioned into the Indian Navy on the 10th of March

This is a Kalvari-class submarine, (a Scorpène-class submarine variant); and named Karanj for its namesake Foxtrot-class predecessors.

wig · Post by **wig** » 09 Mar 2021 09:45

https://www.thehindu.com/news/national/ ... 022882.ece
Lightweight torpedo test-fired successfully
extracts

The indigenously-instrumented Advanced Light Torpedo (TAL), developed by the Naval Science and Technological Laboratory (NSTL), succesfully cleared its maiden flight trial with a parachute system from the Indian Navy’s Ilyushin Il-38 maritime patrol aircraft on Monday.

This was the country’s first such trial where the indigenous lightweight torpedo was fired from a fixed-wing aircraft.

The lightweight torpedo was designed, developed, produced and inducted into services a decade ago and is used against underwater platforms as part of anti-submarine warfare (ASW).

mody · Post by **mody** » 09 Mar 2021 15:26

Some news coming that the DRDO AIP was tested again on Monday 8th of March. This was apparently the last development trial of the AIP. The module will be fitted on Kalvari class submarines, starting from 2023 onwards.
Further details awaited.

mody · Post by **mody** » 09 Mar 2021 15:28

wig wrote:https://www.thehindu.com/news/national/ ... 022882.ece
Lightweight torpedo test-fired successfully
extracts
The indigenously-instrumented Advanced Light Torpedo (TAL), developed by the Naval Science and Technological Laboratory (NSTL), succesfully cleared its maiden flight trial with a parachute system from the Indian Navy’s Ilyushin Il-38 maritime patrol aircraft on Monday.

This was the country’s first such trial where the indigenous lightweight torpedo was fired from a fixed-wing aircraft.

The lightweight torpedo was designed, developed, produced and inducted into services a decade ago and is used against underwater platforms as part of anti-submarine warfare (ASW).

Upto now, which torpedoes were we using with the IL-38s and Tu-142 aircafts? Did the Russians have a light weight air launched torpedo similar to the US Type 54?

sankum · Post by **sankum** » 09 Mar 2021 17:03

https://pib.gov.in/PressReleasePage.asp ... 03456&s=08

DRDO AIP test

. Defence Research and Development Organisation (DRDO) has achieved an important milestone in the development of Air Independent Propulsion (AIP) System by proving the land-based prototype on 8 March 2021. The plant was operated in endurance mode and max power mode as per the user requirements.