Indeed. Initially, there were ideas to get 3 more Talwar (lets call them 11356i), built in a private yard in India (which would explain the price hike). Here the whole engine issue is moot, as India would import any directly from Ukraine. Lateron, there came along the opportunity to take over 2-3 Adm. Grigorovich class 11356M already building for the Russian navy. The latter option should be cheaper, for 2 reasons: a) the ships would need engines bought seperately from Ukraine and b) it involves no construction in an Indian private yard. Of course, now, having these two options, there is also the possibility to combine.
It has been indicated quite clearly that taking over the 11356Ms would mean acquiring propulsion units from Ukraine by India (rather than Russia) and - likely - installing them in India. This shouldn't be complicated as ships are designed to be able to change out gasturbine units (e.g. for maintenance/refurb) during their lifetime. There is no integration issue, therefor, as far as the engines are concerned, as they would be the engines that the ship is designed for to begin with. Besides Talwars, all six of which use DT-59 and DS-71 turbines, the DT-59 is in use on Delhi's, Kolkata's and should hold little secrets in terms of unit cost, operating cost (fuel and parts consumption) and maintenance costs (reliability, mean time between failure etc). There is no way 6 boost and 6 cruise gasturbines would add $450 million (3x $150million). After all:
New twin-shank and single-shank LM2500 engines cost $2.5 million and $3.5 million, respectively.
(Jul 17, 2007 price quote)
http://www.navair.navy.mil/index.cfm?fuseaction=home.NAVAIRNewsStory&id=3750
I've already addressed this myself earlier.
Likewise. I'm indicating again, without details of the actual deal behind a price quote, it is all speculation. And one needs to seperate out actual ship cost from other cost, when looking at a deal.
The reason IN was considering another batch of Talwar ships was that they needed shipreplacement and naval yards were already occupied building other ships. So the point never was about which is the better ship, of what would technically be the ideal frigate. Incidentally, I don't see how Talwars are limited in upgrade potatial relative to P17: they share so many systems e.g. single rail sam launcher (VLU drop in), e.g. CMS e.g. radar. I don't see a reason why e.g. you can't drop in a few VL units for SR-SAM/Maitri on the batch 2's (which only have AK630) or replace the Kashtan unit on the batch 1s with a few SR/SAM and a pair of single AK630. Or upgrading the universal launcher and control system to accommodate Brahmos.
IN is paying off the P26 Godavari's (3 ships: 1983, 1985, 1988). The Rajput will not last forever either (5 ships: 1980, 1982, 1983, 1986, 1988). Next will be the P15 Delhi class (3 ships: 1997, 1999, 2001) and P16A Brahmaputra class (3 ships: 2000, 2004, 2005). And then you can start the three Batch 1 Talwars (2003, 2003, 2004). And the P17s (3 ships: 2010, 2011, 2012).
Lets add a (generous) service lif of 35 years, then WITHOUT FLEET EXPANSION you need new ships as follows
2015 destroyer (2012)
2017 destroyer (2014)
2018 frigate (2015)
2018 destroyer (2015)
2020 frigate (2017)
2021 destroyer (2018)
2023 frigate (2020)
2023 destroyer (2020)
2032 destroyer (2029)
2034 destroyer (2031)
2035 frigate (2032)
2036 destroyer (2033)
2039 frigate (2036)
2040 frigate (2037)
Note that Godavari has already been decomisisoned at age 32. Note that the average age at decommissioning of Niligir class was 32 years (leaving out Nilgiri itself, which served only 24 years). So, the needs are actually more pressing than indicated about by about 3 years. See years between brackets.
Besides 3+3 Talwar's there are 3 P17s are in service (9 frigates).
3 P15A destroyers are coming into service 2014-2016
4 P15B destroyers are expected to commission 2018-2024
7 P17A frigates expected to commission starting 2022
No frigates are currently
Between 2014 and 2022 IN needs to replace 5 Rajput and 3 Godavari (8 ships).
Between 2014 and 2022 IN will be receiving (if all goes as planned) 3 P15A and 3 P15B (6 ships)
That is a shortfall of 2 ships by 2022
By 2025 India plans to be operating not 1 but 2 carriers, so will actually need to
increase the number of carrier escorts available. Thus far only 4 P28 Kamorta have been ordered. But these - and more - are also needed because the P25 (4 ships: 1989, 1990, 1991, 1991) and P25A (4 ships: 1981, 2001, 2001, 2004) won't last forever. So P28s do not cover the shortfall in larger ships in the near term.
I'm not so much interested in what would be a better option as I am in what the deal is going to be, as there likely will be another Talwar deal (regardless of whether we want that or not)