Search results

Does not have to be 'outwards'. The goal is to eliminate the 90 deg 'corner reflector' structure... As long as the design have a vertical stabilator that just happened to be near the horizontal tails, there is a 'corner reflector' and if the need is to reduced radar cross section (RCS) then...

I will put this in even simpler English...Low Probability of Intercept (LPI): The words 'Probability' and 'Intercept' are significant. The word 'Probability' indicate that radar detection is essentially a stochastical process, fancy word for statistics, and when we deal with statistics, we...

The most popular conception of 'plasma stealth' is that of a plasma field enveloping the aircraft. While that notion does have technical merits, considering atmospheric reentry produces such an enveloping cloud around a vehicle, we should keep in mind that such a production is a result of high...

More precisely -- structures. Keep in mind that an aircraft is the opposite of the sphere, which is the simplest structure in radar detection. All this talk about the L-band being more effective against 'stealth' has more to do with being effective against the many smaller structures on an...

What this mean is that NO ONE is going to release their data. The quality of the measurement regime is definitely debatable but no matter the results, NO ONE is going publish the figures.

Yes. That antenna dimension and beamwidth relationship as you accidentally answered your own question. For any freq, to get a desired beamwidth, you must either change the freq or change antenna dimensions or work out a compromise between the two. Those lower freq longer wavelengths have more...

Not possible. Not because I know and refuse to tell because of OPSEC considerations but simply because no one knows. At least no one in the general populace that is not connected to the F-22's program. Based upon my posts 1516 and 1522, we know that a 'fighter' class radar antenna will limit its...

This is a supplement to post 1516 => http://defenceforumindia.com/indian-air-force/8276-pak-fa-fgfa-sukhoi-rosoboronexport-hal-jointly-127.html#post310748 Post 1516 was about the X-band as the targeted band and explained it in principle. This supplement will explain the why in the...

There are no credible information regarding the F-117's RCS value, let alone the F-22 or F-35. Keep in mind that a 10dB difference mean a %50 difference in detected distance, meaning if A and B are detected at 200 km and A did <something> to drop -10dB in output, A will be detected at 100 km...

Generally accepted in light that active cancellation is not yet feasible, at least for others anyway. Physicists reveals how things behave. Engineers exploits those behaviors. An old saying attributed to Einstein goes: 'Scientists investigate that which already is; Engineers create that which...

Before we start making baseless assumptions on the radar cross section (RCS) of the latest designs some basic understanding of radar detection is necessary... In radar detection, there are vital 'target resolutions': - Altitude - Speed - Heading - Aspect angle In order to calculate...

You are treading into Low Probability of Intercept (LPI) radar mode. So here it goes... NOTHING is invisible to radar. We need to get that fact out of the way. The US have never claimed our 'stealth' aircrafts are 'invisible'. Any antenna, and this include the popular image of a rotating dish...

Wrong...Seriously wrong...And is indicative of gross naivete. The ideal situation for any hunter is to be BEHIND the prey, which would be YOU. Interceptors, be it manned aircrafts or missiles, could be from your sides, or if possible, SAM launchers would allow you to pass so your large rear...

I have no choice but to dismiss this columnist as nothing but an idiot. Basically...She is saying the aircraft is invisible to the naked eye.

You cannot afford that certainty. Not even the US is willing to be that presumptuous.

You are missing the point. It does not matter if you have powerful engines or if you have a 'decent RWR' system. The point here is to avoid becoming a victim in the first place. The worst thing for any flyer is to know he has an aggressor in his after sector. It does not matter if the aggressor...

Escape is only an option, as in 'fight or flight' response. But in order to 'escape' a threat, you have to FIRST be aware of the threat, then decide on the response. Rear aspect RCS is important in that it will determent the level of difficulty for the aggressor radar to identify you BEFORE he...

You must be joking, right?