Tell that to aurcov. 🙂

Nope. It’s an insult to Kopp. Kopp is not on the payroll of Boeing, is he?

ATTENTION ALL POSTERS… Simply quoting any source is not a reason for banning, even if the source is a babbling idiot. Good enough? 😉

Sorry, but I refuse to get into “Why Kopp is wrong” thread.

F-15Cs in Alaska got their AESAs in 2000, not quite 15 years 🙂

When will Eurocards get AESA in squadron level units?

3rd gen US AESA

1st Gen = F-15Cs from Alaska (APG-63(V)2)
2nd Gen = F-22 (APG-77), F-18 (APG-79), APG-80, SABR, RACR
3rd Gen = F-35 (APG-81)

After 2.5 years of flight tests…. How many F-14s, F-15s, F-16s, and F-22s had crashed?

F-14 had 3 crashes in the first 2.5 years (http://www.anft.net/f-14/f14-serial-date.htm)

F-15 had a crash 3.25 years after first flight (http://www.globalsecurity.org/military/systems/aircraft/f-15-chron2.htm)

F-16 Belly landed in second year of testing (http://www.f-16.net/aircraft-database/F-16/mishaps-and-accidents/year/1975/)

F-22 Crash (total loss of AC#4004) in 2004 – 7 years after F-22 first flight

Originally Posted by aurcov View Post
any member quoting Sprey/Kopp, should be banned for week …

Okay.. Count anyone who quotes Beesley in, as well.

Banning should only occur for serious reasons. Simply quoting is not one of them.

And, please… don’t lump Beesley in with Kopp, that’s an insult to Beesley.

Really? The formerly full stealth F-35 has become semi-stealth, because some gaps were handed to the EW suite like every ordinary 4.5 generation fighter.

Who said “Semi-Stealth”? Nobody with the JSF Program, neither Military or Civialian, have said that. The JSF has always been call “All-Aspect VLO”.

That being said, nobody (from above) has ever claimed that the RCS is the same from all angles. The same goes for the F-117, B-2, and F-22. Radar shaping is all about focusing radar reflections so as not to reflect towards the broadcasting antenna. The key is to keep these focused reflections away from known radar installations or enemy fighters. This is part of the function of the EW suite.

Ordinary, non-LO AC, do not have the benefit of shaping and have a larger RCS across broad aspects of their airframe. They have to rely more on the active jamming functions of their EW suites to cut down on detection.

It is not the lowest, but the highest peak, which does give the level of stealth.

Um, no.. it’s the average over an area.

I can’t believe you have just spent four lines of text describing something you have never seen, therefore I logically assume you got a diagramme with F-35’s RCS values in all directions. Please, share with us, I am curious to see it, too. Thanks.

I think he is speaking of the general RCS graph such as below:

As you can see, the RCS varies as you look from different angles. I am also sure he was not saying that he has see the actual F-22 or F-35 RCS graphs. He was referencing what he new would be variable returns based on angles.

When LM is designing the EW suite of the F-35, they will take the RCS graph into account and the treat level of a detected enemy will adjust based on what angle and elevation he is at. This is also part of the route planning software.

The biggest limitation I see here is the fact that the enemy RWR only needs to detect the primary signal with incomparably smaller drop off (theoretically only square of distance) while the LPI radar has to rely on scattered reflections of the target (twice the distance plus a considerable energy loss at the reflection surface). I am with Cola on this – I think the next generation of digital RWR devices will move today’s LPI into HPI category, again.

RWR tech always RESPONDS to radar tech. When RWR eventually catches up to LPI tech, the radar tech of teh day will have moved on to newer technology.

Who knows, we might have airborne LIDAR by then.

So now your comparing a state-controlled press of one of this world most repressive governments to the free exchange of ideas (right or wrong) on this board?

It is this exact free exchange, and the ability to disagree and verify that sets us apart and gives us the best chance at the most accurate information.