Попалась очень любопытная ветка в одном индийском «ливжуре» -
http://trishulgroup.blogspot.com/2008/09/project-15a-ddg-detailed.html
…
Principal on-board sensors will include the DRDO-developed and BEL-built Humsa-NG hull-mounted panoramic sonar and a yet-to-be-selected low-frequency active towed array sonar (with the EDO-built ALOFTS, THALES’ Captas-Nano, ATLAS Elektronik’s ACTAS and L-3 Ocean Systems’ LFTAS being on offer).
И последующие комментарии:
Prasun K Sengupta said...
At least three of the five Kashin II-class DDGs have been retrofitted with the HUMSA Mk1 hull-mounted panoramic sonar. But for any warship to survive against a submarine, the warship MUST be equipped with low-frequency active/passive towed-array sonar (TAS). The DRDO is developing the Nagan TAS but its induction has been delayed due to certain technological challenges that need to overcome.
…
Regarding towed-array sonars (TAS), there are four systems available: ALOFTS from EDO Corp (already operational with Israel & Singapore); LFATS from L-3 Ocean Systems; ACTAS from ATLAS Elektronik (now owned by EADS); and THALES" Captas-Nano (ordered by Saudi Arabia). Tenders will soon be issued for supplying such TAS for the Navy's Abhay-class ASW corvettes as well as the Project 28 ASW corvettes. The P-17 FFGs too may get such imported TAS. The three P-15 Delhi-class DDGs have the older Graseby Dynamics Type 750 TAS, but it is a mid-frequency system. The three operational P-16A Brahmaputra-class FFGs and three Project 1135.6 FFGs do not have any TAS as yet.
…
To Max: It is the Nagan low-frequency sonar, not Nagin, and it will be built by the same Ghaziabad unit of BEL that is now producing the HUMSA NG HMS. As you are well aware, Shiv Aroorji had earlier posted in his blog some photos of the handover ceremony of production engineering documents (for the HUMSA NG) from the DRDO to BEL. Therefore, I reckon when similar photos are released by the DRDO on similar ceremonies for the Nagan and Mihir dunking sonar, only then we will know for sure that the P-16A, Project 1135.6 and P-17 FFGs will have a comprehensive ASW sonar suite.
…
To Anon@10:11:00AM: Many thanks for the heads-up on the Nagan ATAS installation on INS Mumbai. Presumably the DDG was being used as the pre-induction trials testbed and once the Nagan is cleared for operational induction, then the other existing vessels in line--the remaining two P-15 DDGs, three Project 16A FFGs & three Project 1135.6 FFGs--will be retrofitted with the Nagan during their periodic service/refit schedules.
…
the reporter also seems to have missed the fact that the Nagan will not be a low-frequency ATAS, but a very low-frequency system.
И особо –
Prasun K Sengupta said...
The four Class 209/Type 1500 SSKs are also being fitted with thin-line active towed-array sonars and the six Scorpenes are also due to get them, most probably the L-3 Ocean Systems-built TB-23H. The ATAS, most probably the BEL-built Nagan, will most likely also be on the four Project 28 ASW corvettes under construction. But rhe 4 Abhay-class ASW corvettes will have imported ATAS on board and that contract has gone for re-tendering.
PS
1. Проблематику «новой противолодочной обороны» в части средств поиска индийцы понимают абсолютно точно (что не удивительно – паки ГАС ACTAS получили еще в 1993г.!), более того ставят вопрос об оснащении активными низкочастотными ГАС ПЛ!
2. То же в части средств поражения – не совсем понимают. Принципиальным здесь является резкое увеличение дистанций гарантированного обнаружения ПЛ, и соответственно роль ПКР. ПЛР обеспечивает поражение ПЛ в кратчайшее время и на полных дальностях обнаружения ПЛ «новыми ГАС». Ждать вылета вертолета и прибытия его в район – чревато получить в борт залп ПКР, тем более что с ПРО у индийцев не все в порядке (те же проблемы с «Бараком» в той же ссылке)
3. Особо необходимо отметить что индийцами ставится вопрос применения активных НЧ ГАС на ПЛ, т.е. значительное увеличение ими гарантированных дальностей обнаружения ПЛ, а это опять же требует ПЛР!
