- Jan 10, 2016
Seems that inclusion of Lithium-Ion Batteries (LIB) technology is going to be a mandatory requirement under P-75I, alongside AIP.
Navy tilting towards Korean KSS? Proven AIP, Li-ion batteries, VLS tubesSeems that inclusion of Lithium-Ion Batteries (LIB) technology is going to be a mandatory requirement under P-75I, alongside AIP.
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VLS not a requirement - in fact the version of KSS that's being offered in P75I will not have any VLS according to the Koreans:Navy tilting towards Korean KSS? Proven AIP, Li-ion batteries, VLS tubes
That's a June 2021 article from naval news. There is a more recent one from 3 days ago:version of KSS that's being offered in P75I will not have any VLS
DSME-3000, South Korea’s Missile Submarine
South Korea has recently spread its wings and entered the submarine export game, selling boats to Indonesia. They are understood to be proposing an export version of their home-grown KSS-III design. This is a relatively large non-nuclear boat, likely second only to the Barracuda.
The type comes with German based fuel-cell AIP. The layout, with a hull section essentially dedicated to AIP, suggests that it would not be too challenging to swap it for the Indian alternative.
And South Korea is ahead of most countries in the race to fit lithium-base battery technology to submarines. This promises to extend the endurance of submarines when running on batterie. Naturally this may be attractive to the Indian Navy, even potentially diminishing the importance of AIP.
Its differentiating feature is that it already comes with a six or ten round VLS. In South Korean service this is expected to carry the Hyunmoo 4-4 missile, which is roughly equivalent to India’s K-15 Sagarika but without a nuclear option. While exact dimensions and weights are not available, this at least implies that it could accommodate the similarly sized Brahmos.
Carrying a VLS in such a small submarine likely needs some trade-offs, like fewer weapons slots in the regular torpedo room. But overall the South Korean design seems balanced and highly capable.
That is interpretation of HI Sutton.That's a June 2021 article from naval news. There is a more recent one from 3 days ago:
The Indian Navy's P-75I submarines will be larger and much more potent than the Kalvari Class now entering service. They will be the bedrock of India's submarine fleet at a time when the strategic focus is leaning towards China as well as the traditional adversary, Pakistan. There are 4 contenders.www.navalnews.com
Specifically on the DSME-3000
Please see this post also:
Govt issues formal tender for 6 submarines under strategic partnership model Along pending project of the Indian Navy for building of indigenous submarines is finally set to kick off as the Ministry of Defence has issued Request for Proposal (RFP) for its mega submarine programme. The RFP...defenceforumindia.com
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The above infographic does show a Brahmos ejecting from the VLS!
The way Indian procurement system works - you meet the requirement, you get full marks. You don't meet the requirement, you get zero marks. Going above & beyond the requirement does not give you any extra marks.
The DRDO AIP was never really meant for P-75I, but only for Scorpene refit. The intention was that the AIP could be ready by the time INS Kalvari comes in for its first major refit. I don't know for sure when that is scheduled.Also for the AIP issue, wasn't the DRDO AIP rejected due to lack of a proof of concept on a working platform, leaving behind only two suppliers in the competition- German ThyssenKrup and Korean Daewoo? (The German company pulled out later due to ToT and localisation demands)