Few things which members must know. A DE sub must lie in the approach path of a ship if it has to do a successful intercept. This ability of a sub is very well known and plotted on the chart of every ship as LLAs-Limiting lines of Approach. If a sub is outside the LLAs, it can never carry out a successful attack.Where did i question the range? You are to yet prove that we bought S400 to cover our cities. but your link is proving otherwise (How it is to make up the shortage of fighters)
Yes, And IN gave the requirement to be around ~60 MRH currently (Last decade tender) We barely have half of it. It has to do with so many variables like the area to cover, availability etc. Not one to one relationship with subs.
According to you, if they have 5 subs then we should have 5 helicopters!
You describing only one mission of an attack submarine, Sea denial. All the other mission of hunting other surfaces/sub surface elements to
If SSBN is moving all the time isn't exposing itself? Also if its SSB in shallow waters then the same logic applies. It doesn't have to move.
A DE sub must retain about 75-80% of its battery charge during the attack to be able to run away. And the moment they go above a speed of 6 kts, they create so much of sound underwater that ships can hear them from many 10s of miles. The game played by sub is that of wait and watch. It has to be in position or the pray must come to it. Take the case of INS Khukri, the ship went out hunting for the sub and the sub was waiting for them. Next is the case of Ghazi, sub was waiting and it feared that it has been detected and ran into its own mines.
There are many tactics followed by ships to fool a sub. Zig-zagging to deny a clear aiming point, high speed in sub infested areas, turn count masking and random dunking sonar searches by helicopters are few of them. Only SSNs can chase and attack a ship but for that they will need to travel at over 25-27 kts which again will create a sound underwater which will make them easy target.
The advent of missile firing subs has created problems for the ships but again the sub must have very clear target data to be able to fire the missile and for that it will need the support of someother platform-aircraft or ship or satellite.
We are giving far too many capabilities to DE subs here which they infect do not possess. Going thru the screen of a CBG during excercise is one thing and attacking it in reality is way another thing.
Aa far as India is concerned. We have been detecting Pak subs even by our satellites and that too as deep as 60meters. And our LOFAR sonobuoys have capability which probably noone else has. They detect soundwaves of such low frequency that on many occassions we have recorded the communication/sound of whales talking to eachother. Imagine at what distance they can pick out a sub!!.