A BPC for the Russian navy ??
According to this http://www.ttu.fr/francais/Articles/bpcmistralrussie.html citing the “Russia Intelligence” letter, the Russian navy could buy the design of the BPC (LHD) Mistral and built it indigeneously.
Why would they need to buy such a design? If they can come up with vessels like Kiev class and Kuznetsov, like Ivan Rogov and Moskva classes, you would think they can cook up an LHA of their own.
My choise would mostly follow in these lines:
Only change would be the Top Dome to be replaced with Tombstone.
For the main SSMs I would mostly go on with the P-1000 which was mented to replace the Bazalts in their associated launchers. Only reasonable option for P-1000 would be the Granit. Yakhont is completely different class missile than what is required here. The sheer size of this ship is useless unless it’s mented to carry heavy-range SSMs. The launchers for Granit are basicly just angled launcers beneath the decks so I quess it wouldn’t be hard to modify the missile to be launched from tubes of Bazalt/P-1000.
I’m curious about this drawing: what – if anything – is there forward of the RBUs? The AK-630s are obviously gone.
Another thought: if the RBU and AK630 forward were removed, could an additional 4 8-cell VLU’s be mounted there for RIF? (I’m obviously leaving more towards an AAW specialized vessel rather than a strike oriented vessel)
Also, what is the difference between HUMSA and VDS? Which is better? In my notes, it states “HUMSA NG” as the new sonar.
So it seems they were talking of towed array sonars.
DRDO, BEL and the Indian Navy have developed and productionized a range of Sonars and related systems for the Navy’s frontline combat ships. These include the APSOH (Advanced Panoramic SOnar Hull mounted), HUMVAD (Hull Mounted Variable Depth sonar) and the HUMSA (follow on to the APSOH series; the acronym HUMSA stands for Hull Mounted Sonar Array) sonars, Nagan Towed Array Sonar, Panchendriya Submarine sonar and fire control system, sonobuoy Tadpole and its airborne signal processor Simhika. Other sonars such as the airborne sonar Mihir, are in trials, whilst work is proceeding apace on “New Generation” sonars. Sonars may be considered one of DRDO’s most successful achievements, with the work begun under the leadership of a young Naval officer decades back. Today, the Indian Navy’s most powerful ships rely on Indian made sonars. The standard fit for a frontline Naval ship would include the HUMSA-NG (New Generation) hull mounted sonar, a HUMVAD variable depth sonar and the Nagan towed array sonar. The Mihir, is a dunking sonar meant for use by the Naval ALH, working in conjunction with its Tadpole sonobuoy. The Panchendriya is in production for the Kilo class submarine upgrades. Some ships, such as the INS Beas field a mix of local (HUMSA and HUMVAD) and imported sonars (towed array), till the local towed array was developed. The Delhi class destroyer has the HUMSA and the HUMVAD
http://en.wikipedia.org/wiki/Defence_Research_%26_Development_Organization#Sonars
see also:
http://www.drdo.org/labs/npol/achieve.html
http://www.bel-india.com/index.aspx?q=§ionid=73
http://www.bel-india.com/index.aspx?q=§ionid=72
http://indiannavy.nic.in/t2t2e/trans2emins/21_indeginous_sonar.htm
http://frontierindia.net/national-symposium-on-towed-array-sonar-systems-at-npol
http://frontierindia.net/npol-hands-over-next-generation-sonar-design-for-india-navy-ships
http://trishulgroup.blogspot.com/2008/10/what-it-takes-to-wage-undersea-warfare.html
In the ocean there are layers of water of different temperature, which can interfere with sonar detection. As I understand it, a VDS is in essence a ‘regular’ ship sonar array mounted inside a separate tow vehicle a.k.a. ‘fish’ towed on a line behind a ship. The fish can be set to descend to different depths, this allowing the ship to search underneath layers of water it could otherwise could not search.
A towed array sonar is a sonar array is basically a long cable (up to 2000 m) with hydrophones that is trailed behind the ship when deployed. The hydrophones are placed at equal distance on the cable. This linear sonar too can be deployed in different thermal layers. The value of this type of array is that the signal processing techniques (beamforming, interferometry) can be used to calculate the distance and the direction of a sound source. For this, the relative position of the hydrophones need to be known, usually this is only guaranteed when the cable of the array forms a line.
Despite disadvantages, a linear towed array is useful as it offers better resolution and range compared to a hull mounted sonar (and VDS) and like VDS covers the baffles, the blind spot of hull mounted sonar.
http://www.arstech.de/sonar/active_towed_array_sonar.html
In the surface ship sonar’s, the indigenous development programme started in 1974 and up to now, 25 systems have been commissioned in Naval Ships. The sonar system is manufactured completely in India and only components are sourced form abroad. All sonar’s use transducers, which are also manufactured in India. Sonar’s under this category are of NPOL design. BEL has taken up the upgrade and reconfiguration of the original systems. Some of the sonar’s developed and supplied under this category are:
• Advanced Panoramic Sonar Hull Mounted (APSOH)
• Hull Mounted and Variable Depth Sonar (HUMVAD)
• Hull Mounted Sonar Advance (HUMSA)
• NAGAN
• Towed Torpedo Decoy (TOTED)With the experience of manufacturing these Sonar’s, BEL has developed expertise for high frequency, hull mounted, single array, dual array sonar’s. The special digital processing techniques for getting better range and bearing accuracy have also been acquired. Also, the digital beam forming technology has been deployed in these sonar’s. On the submarine Sonar’s, the indigenous development programme started in 1990s and up to now 5 systems has been manufactured and two are under evaluation in Indian submarines. The sonar systems is manufactured by BEL with designs from NPOL.
BEL has been working on airborne Sonar’s with designs from NPOL since 1990. The sonar’s under this category are:
• MIHIR – Light Weight Helicopter borne dipping sonar’s.
• SONOBUOYS – Air dropped passive non-directional radio sonobuoyOver the years, BEL has assimilated various technologies for different types of sonar’s and also established in-house facilities for testing and manufacture of these sonar’s. NPOL, Cochin is a technology partner for BEL for meeting most of the requirements
of Navy. However, in certain emergent cases, with new technologies, foreign collaboration is also resorted. BEL is trying to tie up with foreign collaborator for Towed Array Sonar’s for Submarines, Airborne sonar’s (LF version) and Mine hunting sonar’s.”
http://frontierindia.net/bharat-electronics-and-defence-production
found a small pic of Ukraina
A whole bunch of images here
http://navsource.narod.ru/photos/02/172/index.html
It’s dirty and rusty but does appear to have most of its equipment fitted. Of course, that equipment today is mostly obsolete, irrespective of whether or not still functional after 10 years of laying idle.
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