Agnostic_Indian
New Member
- Joined
- Oct 15, 2010
- Messages
- 930
- Likes
- 246
I agree with most of your posts how ever it is wrong to say You need x band radar to guide a missile. It may be true for now but with PAK FA it's going to change. check this out..Ersakthivel
The problem with your post is the volume of the posts you make. You keep repeating the same point again and again with no end in sight. More importantly, most of what you have posted is WRONG. You have also assumed many things which I have not said and twisted it to suit what you say, which shows your lack of maturity in your posts. So, if I start quoting every single line you make and refute what you say it will never end. It is impossible to type so much.
Out of all the posts you have made there is only one good quality post that you have made in the entire time you were in the LCA thread, only one. That is the post where you explain about wing forms and shape along with aerodynamics. The remaining posts are low quality posts and bereft of any CORRECT information.
Let me explain somethings about aircraft, radars and stealth that you have a misconception about.
The LCA was designed in the 80s as a 5.5 ton aircraft, carrying 4 tons of payload which includes 2.5 tons of extra fuel in drop tanks. Don't forget that nearly 3 tons goes into drop tanks alone. Hence the aircraft will obviously be asked to carry more than 2 tons as your originally claimed. It was designed to have a carbon composite body, with a quadruplex redundant digital fly by wire system with a decent radar with multiple modes. It wasn't expected to be better than the Mirage-2000. It was designed as an aircraft that will be "very small" and will fill IAF's needs for a support aircraft that can back up technologically superior aircraft like the Mig-29 and Mirage-2000 which were given the "Air superiority" tag by IAF. Same like how the Mig-21 was and is used even today. Until 2009 this requirement had not changed. LCA was accorded "air superiority" status only in 2009 with a slightly modified requirement to bring it to a Mirage-2000 standard.
Coming to the RCS. Since the LCA is made of carbon composites, it had superior capability in absorbing radar waves incident on it as compared to an Aluminum or Titanium body. A RAM coating was expected to reduce RCS further. As of today what we know is the F-16 has a RCS of around 1m[SUP]2[/SUP] when using 1990s legacy radars systems like what has been designed for LCA today. Mirage-2000's RCS is very similar to F-16's. LCA was designed to have a lower RCS than these aircraft. One literature claimed the RCS was 3 times smaller than Mirage-2000 for LCA. However when you place weapons on external hardpoints, this RCS value shoots up "exponentially"(I hope you know what the term is). This exponential increase in RCS is "many times" the clean RCS. What I am saying is the LCA wasn't designed as a stealth aircraft. It was designed as a regular aircraft like the Mig-21 or Mirage-2000. Meaning 3rd and 4th generation design rules were used.
Comparatively Dassault claims the RCS of the Rafale is 10 times smaller than the Mirage-2000. So, it's RCS is significantly smaller than what's on LCA. Other than that, LM has made even more incredible claims for stealth aircraft. Now you will notice that the F-22 and F-35 are stealth aircraft for a reason. F-35 has been designed with a RCS that is 1000 times smaller than a F-16 while the F-22 is 10000 times smaller. Now you have an idea of what a stealth aircraft is and what is not.
In air exercises between F-15 and F-22. The F-15s radar(which is far superior to the LCA's) could not lock on to the F-22 even though the F-15 pilot could see the aircraft outside the canopy. That's stealth and is a real story. AWACS and other 4th generation legacy aircraft cannot even touch the F-22. Now if we consider J-20 or PAKFA are not as advanced and a F-15 can still lock on to these aircraft at small distances, how much would this distance be. And how effective would it be if you can detect and track a F-22/J-20/PAKFA at a distance of 10 or 20Km while the other 3 aircraft can see you from 400Km away. Also notice that we considered a F-15 and it's better radar, not the LCA's small and insignificant radar.
So, now you see the difference between an aircraft with a RCS 3 times smaller than a F-16 and an aircraft with a RCS 10000 times smaller than a F-16. That's why the LCA will light up like a truck and a J-20 would easily detect and track a LCA from any distance without any problems at all.
The difference between a F-22 and a LCA is the same as the difference between a marble and a lorry. This is the meaning of "New Generation."
In the scenario you drew up, with 12 LCAs and 3 MKIs. A small group of 4 J-20s(packed with 24 BVR missiles) would have taken out the 12 LCAs, 3 MKIs and the AWACS and they wouldn't even know about it.
Now let's get to your other point. I don't want to do a Gambit and explain how ineffective a L band or a VHF array can be against stealth targets. It will go over your head anyway. So, I will use another technique. You understand that the F-22 and F-35 are optimized for stealth in the X Band. So, the logic you use is in L band or VHF band(Nebo radar family) the aircraft can be detected. Ok that's great. Now let's assume you managed to detect a J-20 using these long wave radars. Now what will you do after that? You detected the aircraft, fine. Ok, let's say you even managed to track the aircraft for a few seconds. Then what after that? You obviously don't know that BVR locks are performed by radar waves in the X band. Meaning, even if you found the J-20 using an AWACS or a ground based radar, you still need to turn on your X band radar and try to shoot it down. But the J-20 is stealth optimized for the X band. So, how will you get your BVR lock on the J-20? Couple that with the LCA's inability to track the aircraft itself, what makes you think missiles will work against the J-20 in the first place. By then let's not forget the J-20 would have used its radar to track you from 400Km away and shoot you down at a distance of 50-100Km away using modern missiles available today, and not what can be available in 10 years from now.
That my friend is a NEXT GENERATION AIRCRAFT.
As for your post on Arjun and T-90 and what not. Go to this thread and start reading from the beginning.
http://defenceforumindia.com/forum/land-forces/208-main-battle-tanks-armour-technology.html
It will answer all your questions on why the T-90 was chosen over the Arjun.
This thread too,
http://defenceforumindia.com/forum/indian-army/9558-arjun-main-battle-tank-mbt.html
Keep all your questions in these threads. LCA thread is no place to discuss tanks. If you have questions you can directly ask Damian or Militarysta to answer them for you. They will tell you the difference between the two tanks. Heck you only need to copy paste what you wrote about tanks on the Arjun thread, that is if you are too lazy to read hundreds of posts on tanks.
Assessing the Tikhomirov NIIP L-Band Active Electronically Steered Array
as of now best system available would be IRST with IR guided missile.
there should be many ground based systems like s400 which should be able to detect stealth crafts.