sure, but if I understand this correct.. lpi is mandatory for any bvr engagement., that I presume includes not continuously illuminating to track and scan. you would have better situational awareness with longer ranged radar rather the right sized for the weapons you deliver. And, this is all life or death in matter of minutes and seconds for the pilot and our security of the country. I agree IAF is more qualified to judge than this understanding, but we are definitely not wrong in discussing here for our knowledge. I hope BReapert clarifies this.
passive tracking and frequent pulse mode active scan as feed into track corrections, could increase LPI. So, I agree passive receivers takes an important feature for BVRs.
Absolutely right SaiK!!
My comment about IAF evaluators was aimed at the other posters who I think have been a bit too quick to jump to sometimes not-considered judgements about the superiority of one type or tech over the other. To these posters, I'd say that its really hard to make a considered comparative evaluation even with all the data and experience, let alone with the bits and pieces that we're working with here. Thus, I see no reason for either rigidity or dogmatic support positions in this thread
wrt LPI and ranges, let me illustrate my point.
Lets say you are walking in the dark with a gun, a big Lathi and a torch. Being scared, u carry a really big powerful torch and keep it alwys on. This would only lead the dacoits to you quickly.
So you decide to keep it on only for very short quick bursts so that the daakus cant catch your position. The problem of course is that even these short bursts are attracting the attention of daakus from 500 m around, and they're coming towards ur general location and are then shining their own torches to find you.
Then u realize that u could solve this by shooting the dacoits the moment you see them. So u shine the light in bursts. When u see a daaku, u hold, aim and shoot. Again, u find a problem here - because u take some time to aim, and ur torch has a much longer range (say 500 m) than ur gun (say 100 m). So the dacoits are able to see you much better if you aim in advance. So you cannot aim too much in advance, and when u do aim, u should aim really really quickly and fire before they do. Which means that YOUR POWERFUL TORCH IS ACTUALLY A LIABILITY HERE, UNLESS YOU CAN FIRE BACK AT THAT RANGE AND QUICKLY.
Ideally, u want to scan very quickly before the other daakus see your torchlight, and if you do aim, aim only when you are close enuf to be able o fire quickly. And AIM quickly, before they can aim in return and fire.
So its a tough situation you're in - to know where the daakus are, u need to keep scanning. And you need to fire at them before they geet a chance to even notice. But the longer you keep scanning, the greater the chance that they detect you. And then you're a goner. So you need to be in the situation that if they DO detect you, you can aim and shoot them first.
Which means that you make a tough choice - you quicken your reflexes and scanning ability. You only scan quickly and have a torch that is less bright so that far away and other dacoits dont see you there till its too late. Instead, you put the torch range at say 200 m, so that far away dacoits don't detect you and come closer, and instead, you can only be detected by those you know you can take on quickly -, ie If you're looking for something, make sure that when you find it, you are ready to kill it. Otherwise, you have just given up the element of surpise and are now a sitting duck.
Of course, like i mentioned, that would require you to have really really good reflexes to shoot first, and shoot well
Thats the philosophy i was referring to in that post before. Situational awareness is really good, but sometimes, too much of situational awareness might be dangerous.
Plus, excellent passive sensors will let you figure out whats going on far away without having to go active. That is the design philosophy behind the Rafale sensor suite - a perfect fit between the length of the arm, the speed of reflexes and the effective range of the eye.