strategypage is generally low in quality, but there are a small number of quality posters. From all of the forums I post in, I’d rank him in top 3 in terms of knowledge and respectability.
Hmmm….and how many years of service experience or technical domain expertise do you have to have your ranking being a de facto acceptable statement?
well, in terms of subs, you can upgrade the control system and weapon, but the noise level simply cannot be reduced as a new design.
The question is of the level of effective reduction…there is a lot that can be done and is done..
I mean, that’s why IN is getting Scorpene after all. It will be the most advanced sub in Indian Ocean once it is inducted.
Once again, this simplistic best there is comparison is ridiculous. The IN is getting the Scorpenes not just because they “outgun” the Agostas (Scorpenes wont be used to hunt the Agostas anyway), but because they tie into the IN’s long term planning for its own local sub manufacture.
the Indian kilos still use 5 blade propellors, which is more noisy than the 7 blade propellor kilos, which is more noisy than Amur, which is probably more comparable to Agosta 90B. And how are you so sure that the Agostas will be detected? American navy had trouble detecting Gotland SSK. Modern SSKs are not easy to detect.
This “x” propeller is noisy, and “y” is not is fairly ridiculous. The refurbished IN kilos got six blade props btw- Austin should have details.
Please look up more on the subject. Its all about hydrodynamic loading and which propeller suits which sub best.
In a prior discussion on the subject:
In fact fewer blades will be more open water propellor efficiency. Fewer blades , means less total blade area, and hence less frictional losses between water and prop blade and hence greater efficiency.
However, fewer blades means each blade is more hydrodynamically loaded, meaning, the torque & power output per blade is limited by basic hydrodynamics. There is a limit to which you can do it per blade before local pressure in the flow falls below the vapor pressure of water at that particular depth and temperature and the blades start cavitating.
Now, for subs, cavitating performance is very important (cavitating –> noise) . So, to improve cavitating, you increase the blade area ratio, while trading off on propulsive efficeincy. However the fewer the number of blades you can do it with the better (for a given power output).
Bottom line is this. All things being the same (same rpm, prop dia and engine power, similar cavitation), fewer blades means better prop efficeincy.
So to pigeonhole as you have done is misleading..
you might find this interesting
And there are a dozen reports saying the opposite. The IN Def Min ties himself up into knots whenever the topic comes up. You seriously dont think either side wants to publicize this or the Russian assistance for the ATV project, do you?
Any proof for this? What kind of subs have the Russians had to test with this?
They definitely do have their own, which are top notch. That apart, they can definitely benchmark performance via other tests. One does not need a stealth fighter to determine that a radar can detect a target at 0.001 mtr sqr RCS in the X Band, if the same radars performance at another figure is known, and its scaled proportionately..
just to make it clear, China is getting Sea Dragon with Be-200 and already have upgraded kilos. So, I’m not arguing against Sea Dragon and kilos out of nationalistic sentiment.
Yawn. Given your Canadian why should you even be bothered with China in the first place, but there you are..
Exactly- so one could argue that Russian losses were too high and “idiotism”, but they are not. Each country to its own, and how it deals with terrorists and insurgents.
About tanks, well- you didnt get my point. The IDF should have ideally supported their tanks with infantry to prevent them from getting flanked, and avoiding crippling shots which could hit the ammo stowage. But given Israels population issue and the need to avoid casualties, I suspect commanders have seen it fit to risk tanks rather than throw more and more troops into harms way. And this has had an effect on the higher armour losses. I suspect, that post this conflict, the Israeli Army will field Trophy/ Iron Fist in earnest. That is a given, thanks to the IDFs over reliance on mechanised forces- again partly dictated by their doctrine to avoid casualties.
************************

The point the Gentleman is trying to make is not regarding the Military strategy of cutting down of infantry by using Armour, but rather the mere fact that the Might Myth of Merkava-4 is smoked (guess what its caught on Video as well)
What is this “mighty myth of the Merkava is smoked”- a rather juvenile comment dont you think? There is no tank which is invincible, and to think that betrays ignorance.
The Leopard & Leclerc for instance both have hull stowage of ammo (below the turret line, but still)- one can imagine what would happen if that were set off.
But overall, as designs go- the Leopard series and Merk series are quite superior to say the average Al-Khalid or T-72 etc on accounts of its overall performance, whether it be armour or firepower.
So , i’ll speak about 2nd Chechen war: During 3 years of 2nd CW Russians lost 7 aircrafts and about 30 helos, and less than 10 tanks. I should stress it – during 3 years. To make an comparasion, USA lost much, much, much more in Iraq. Israel, on the other hand, couldnt lose nor aircraft, nor helos as there was just no oppurtunity to it. Israel used fighter-bombers to deliver most of its bombload which are invulnerable to MANPADS. Helos was only used near border (we can even say from the border lol). Obviosly, the main problem with using FB instead of helos and CAS aircrafts is what pilot cant identify its target from close range as first, and what it needs more time to react as second. Either way, the losses of Israel in tanks can be only compared to 1st Chechen war, and for very same reason – politcans/generals stupidity.
There is no problem to lose tank here and there – after all tanks are indeed build to burn instead of infantry. But such scale of losses with such insignificant results can be only described as “idiotism“.
Thanks Chrom for the details. However, I do feel that you are needlessly generalising here. How many troops did Russia lose vs the Chechens? Can that too be described as idiotism? Every nation makes its own choices about how to conduct campaigns, and the needs and the methods differ in turn. The first Chechen war saw a lot of fighting in built up areas & armour deployment in zones where their limited visibility and situational awareness was used against them. The same happened in Israels usage of armour vs the Hezbollah, tanks are tanks – after all.
Secondly, the loss of tanks is acceptable to Israel as versus the loss of troops which is not. When we come to this realization, given Israels population constraints, then we realize why they’d rather have a tank scrapped but a portion of its crew alive, than risk an infantry unit in a firefight with ATGMs being used in plenty. Secondly, on another board, an Israeli soldier is on record stating that out of a vast majority of ATGMs fired, only a few caused substantial damage, and only a few of those were losses- and in his words, acceptable.
This is not to deny that certain actions were clearly silly. IIRC in one notable engagement, the IDF spur of the moment attack cost them 9 tanks crippled and 8 crewmen killed. But then, I’d also ask which service in the world has demonstrated a perfect record of planning and executing operations.
As regards insignificant results- well history will be the judge of that. Sure, this has been no six-day war kind of thing for the Israelis. But they have inflicted heavy casualties on the Hezbollah and there might be an international force in the region forcing Hezb to tone down its actions. So overall, not a bad show either.
************************

That bit does sound like LPI. My point to George was that simply shutting off a missile’s seeker head does not make it an LPI system, and that point still stands.
Cool, I was just responding to this:
Were it true LPI, there would be no need for it to be shut off for 90% of the flight path or so.
Because like I said, even that fails to act as a determiner for LPI vs non LPI.
I think thats the million $ question isnt it?
The Indian Navy has been investing heavily in its sensor chain in recent years. The KA-31’s, Heron purchase and NCW program (basically datalinking all ships/ onshore facilities/ MPA’s via dedicated transponders on Indian sats) should add upto a decent OTH ability for the most part.
Apart from that there are other reconn assets which they plan on acquiring- mostly an enhancement of the current MPA fleet..
http://www.india-defence.com/specifications/missiles/48
A beautifully detailed article.
Supersonic speed in cruise phase will ensure ships will not be able to move much farther away from the estimated position. As a result the missile will be able to start active radar search closer to target on a narrower sector of 40-45 degree. Hence the targets ESM detection and countermeasure will have just 3.3 seconds to react.
The seeker uses a hybrid form of pulse compression, in which bursts of short pulses are phase-coded so that they can be compressed; the bursts can also be Furier-transformed to discriminate chaff clouds. This particular pulse compression technique was adopted to hold down peak power, so making ESM detection difficult. The missile can also scan a number of targets in the area to identify the one it is supposed to hit. This capability is normally obtained through screen matching criteria, but Brahmos employs special algorithm that classifies targets based on their radar cross section as contained in the pre launch data.
That sounds like LPI to me.
Janes missiles and rockets, Oct 1 2005
The significance of BrahMos lies in its very
high-speed and intelligent behaviour. Each missile has
been designed to operate as part of a salvoed attack,
with a datalink net between the inflight missiles
updating them on target co-ordinates plus the status
of the other weapons in the attack. BrahMos’s high
speed makes it a difficult target to defeat – Western
intelligence agencies believe it may also have a
low-probability of intercept (LPI) ‘stealthy’ radar
option available to it, adding to its chances of
reaching the target.
Again, that’s not LPI, that’s simply turning off the radar. That’s an intelligent design solution, but not an actual LPI system. Were it true LPI, there would be no need for it to be shut off for 90% of the flight path or so.
Not necessarily. What you are forgetting in this case is that Naval ships field comprehensive ESM/ ELINT equipment on account of the space available vis a vis (say) fighters. Hence, even LPI – constant operations can be detected.
Hence, this alone is not sufficient to say that x is non LPI vs LPI. As Harry says, even datalinks can help pinpoint a threat, let alone constant emissions.
On the “Zap and disappear” note. Apparently, the Brahmos on average, thanks to its high speed, reaches a target area before the target has time to disperse beyond a point, and the seeker is long ranged, resulting in it detecting the target in one radar sweep. This is compared to subsonic missiles, which thanks to target dispersion on account of their slower speed, need to make several radar scans and hence give away their position.
ONLY 30? Hell, in 5 years of second Chechens war russians lost less than that. USA was fighting full-scale Iraq army and lost about as much or less… And its not if Hizballah have Metis-M or RPG-29 in every regiment. So far general consensus is what Hizballah have very few modern ATGM’s – if any. Either way, this war showed the same thing what anyone with halfbrain already knew – no tank can sustain ATGM’s hits to side/back. Even if this tank is by god protected Merkava-4.
And how many troops, aviation assets did the Russians lose in comparison?
The IDF is a heavily mechanised force, and improper deployment of Merkavas conceded, they did use the Merkavas to reduce infantry deployment and took more armour losses that way…
“The Su-34 is not a fifth generation aircraft. It is, however, a very potent strike aircraft.”
Agreed. But there are reports that it involves the very best in RCS reduction measures used by Russia.
Sorry, but no they are not.
You cant just “upgrade” a sub like you can an airplane. Its still has an ancient hull, its still has a loud engine.
Aah. And thats the extent of your “technical arguement”?
The Kilos sensors are in no way comparable to the Agosta 90B.
Please do inform us about the relative sonar ranges on the upgraded Kilos vis a vis the Agosta 90B. Also about the relative ESM fits.
Its the very reason India is going for the Scorpenes made by DCN and similar to Agosto 90B.
Nonsense. India is going for the Scorpenes to aid its own local submarine production program and to build adequate subs to enter service as its older ones are phased out.
I am not discounting the Kilos, but to compare them to the new Agostas with MESMA is a joke, and a bad one for IN submariners/
Actually, nice rhetoric. These x vs y comparisons are all very well, but given the PNs weakness in ASuw, the IN has more subs of an entirely reasonable level to field against Pakistan…and with proportionately more effect..
PN is getting the LATEST version of the P-3C. In fact its spending $900 Million just on upgrading 8 airframes to the lates standard. They will be armed with Harpoon 2.
Sigh, more rah-rah . One can as easily point out that Pakistan receives neutered equipment from the US, all the F-16 relevations for instance, one can also point to the impact of the IAF to reduce the P-3 effect, or that the IN has substantial close kill ability via the Baraks, or that its improving its outer reach & would operate a CBG as well…but never mind..
Again, the comparison to the IL-38, (whose servicability is doubtful) is a joke.
Of course, the IN just invited you over to talk about Il-38 serviceability and the nitty-gritties of the Sea Dragon suite..
Names & Pennant Numbers with commission dates:
INS Sindhugosh S55 (30 April 1986) – Refit Complete
INS Sindhudhvaj S56 (12 June 1987)
INS Sindhuraj S57 (20 October 1987) – Refit Complete
INS Sindhuvir S58 (26 August 1988) – Refit Complete
INS Sindhuratna S59 (22 December 1988) – Refit Complete
INS Sindhukesari S60 (16 February 1989) – Refit Complete
INS Sindhukirti S61 (04 January 1990) – Undergoing Refit
INS Sindhuvijay S62 (08 March 1991) – Undergoing Refit
INS Sindhurakshak S63 (24 December 1997)
INS Sindhushastra S65 (19 July 2000)http://www.bharat-rakshak.com/NAVY/Sindhugosh.html
As I expected, most of the Kilos are almost 20 years old!!!! They are probably teh loudest ships in the water!
Please.
“Refit”. These refits are basically upgrades-google for more info & involve addressing all aspects of the subs systems. Hull upgrades/ refurbishment, anechoic tile replacement, new propellers…the list of improvements is substantial.
As regards “loudest ships” in the water- that would go to the PN’s antiquated earlier Agosta’s, which dont appear to have received anything modern .
Dude
Just 4 days agos Pakistan Navy introduced a MESMA AIP Agosta 90b with SUBTICS command system.This sub is about a week old.
Are you genuinely saying India (which has not inducted a new sub for the past 15 years), has a more modern submarine in service?
Thats all I stated. PN had the most modern sub in the area as of right now. There is nothing fanciful, nothing “anti-indian”, nothing to do with flaming. Its a fact.
If your unfamiliar with what this sub is capable of I will be happy to point it out.
Lets not engage in semantics. As of “right now”, presumably. Again a partly true statement, in that sounds impressive but has little effect to the overall balance, ie. how *many* subs does Pakistan have & how many subs is its regional rival procuring.
Secondly, the Marlin contract is not done yet. When it does happen, we will see.
Cheerio.
Study the program and the pace of upgrades and you’ll realize that it isnt all that RUSHY ๐
Well the entire world aint the US, melawd ! funding is not always assured. ๐
The EF dudes for eg are financing the Captor-E program out of their own pocket without waiting for the British bureaucracy to limber up.. ๐
And when would a fully ready AESA rafale fly ???
I think they were planning a demonstrator by the end of the decade..given that an AESA seems essential for the Rafale to get exports, if ever. :rolleyes:
Woahhhh I seem to have stepped on some toes:). Since I diverted the thread I guess I should answer.
PN sub fleet is currently 3 agosta 90B
2 Agosta 70 (will be retired when new subs come)
The 4 daphnes were retired.
Some mini subs not sure of number. 3 is my guess.So if the new 6 subs come 9 modern subs. Not bad by any standards. IN would need atleast 16-18 new subs to counter these and ccover the rest of the indian coast. So I guess its time to order more subs since Kilos retire from 2016 on.
See, when are the timelines these “6” subs come by? All we have on record are the 3 Agosta 90’s. So that makes just five at present, out of which 2 are rather long in the tooth.
India (or for that matter) does not buy subs on such a basis ie to cover the coast. Thats left to the MPA’s to recce (a dept where the IN is clearly lacking). Plus, India’s sub fleet is clearly marked for offensive ops (Club-S).
Can we stick to PN news? Think there is an IN thread, so those who want to pray to that mighty navy can do so over there.
No need to act petulant, Greenday. You began all that comparison bit, so when the facts are pointed out to you vis a vis the more imaginative stuff (“The most modern sub fleet in the Gulf/Indian Ocean (obviously barring USN),with anotehr 6 of a new design is quite remarkable.”) , please accept the reality & move on. Besides, the flaming has stopped & given that the PN and IN are rivals its but natural, that sometimes a bit of IN discussion will occur in the PN thread & vice versa.
Cheers,
Nick
The article basically states that the new 3UBK14F round is based on the 9M119F, and intended primarily for โsoftโ MOUT targets (unlike the shaped-charge anti-armor 9M119 & 9N142M). Max range is 3.1 miles, and the munition is now in production. Despite the poorly-worded bullet point, the article does note that round uses the same semi-automatic laser beam-riding guidance system as the original 9M119 missile.
Whats the 9N142M? The Bastion 105mm round?