Page 31 – Key Publishing

Goldust

Forum Replies Created

Viewing 15 posts - 451 through 465 (of 474 total)

← 1 2 3 … 30 31 32 →

Author

Posts
September 1, 2012 at 5:38 pm in reply to: China wants to make Su-35 clones? #2313103

Goldust
Participant

J-17 is a stealthy Flanker that should be on paper superior to Su-35.

August 29, 2012 at 5:15 pm in reply to: J-20 Thread 7 #2314033

Goldust
Participant

Detection tracking range changes with the fourth root of power and RCS;

A 90% reduction in RCS approximately halves the range of radar, a 10-fold increase in radar power approximately doubles the range of radar.

The combined transmission and reception of the J-20 radar would have to be 10 times better than that of a F-22 or F-35 in order to compensate for an order of magnitude RCS inferiority.

radar radar radar….. I’m sick of it. China and the US can never go to war with each other :rolleyes:

August 25, 2012 at 2:20 am in reply to: J-20 Thread 7 #2317231

Goldust
Participant

RCS is dependent on what radar is used for doing the testing. Typhoon’s radar is far more powerful than F-4’s radar for example.

August 23, 2012 at 11:00 pm in reply to: J-20 Thread 7 #2319122

Goldust
Participant

One other thing: no one has radome measurements? According to studies made on the J-20’s canards, the J-20’s RCS cannot be below 0.001 m^2 on the frontal sector because that’s the RCS contribution of composite radar transparent canards. This is an order of magnitude less than the F-35 and F-22, which means that for frontal RCS, the J-20 will be detected at twice the range it would be able to detect the F-35 or F-22 with comparable radar. Consequently, the radar of the J-20 would need to be significantly larger than the F-35 / F-22 radar to compensate.

In the case of the F-35, this can be relatively easy since the F-35 only has 1200 T/R modules. In the case of the F-22, however, the F-22’s APG-77v2 will have up to 2200 TR modules and it would be hard for the J-20’s radar to significantly outsize the F-22 to obtain equal detection ranges.

Lockheed Martin can claim all sorts of numbers, doesn’t mean they are all real :rolleyes:. F-22 is over 40,000 pounds of metal, very much doubt it has RCS as small as a marble.

August 15, 2012 at 1:14 am in reply to: J-20 Thread 7 #2334942

Goldust
Participant

If you remember how long it took J-10 official specs/dimensions to be released, you are in for a very LOOONG wait. 2006, J-10 became official, 2009 came the 1st official values for length, width etc. :diablo: :dev2:

It seem a PLAAF general had given the value 20.3m during IIRC a CCTV interview, but whether he was just messing with or not is another matter. I constantly here the J-20 (without pitot) is at least 2m longer than the F-22 (21m-22m). So don’t hold your breath for any official stuff. They’ll keep us guessing for a long time. 😀

One thing, the F-22 is misleading because its engine nozzles are several meters in from the rear edge of the horizontal stabs. Little PhotoShoping and you can make F-22 look longer than it is without actually changing the overall length.

J-20 is huge compared to J-10, that’s all you need to know. 😀

August 9, 2012 at 10:26 pm in reply to: J-20 Thread 7 #2338661

Goldust
Participant

J-20 is 21.26 meters long, excluding pitot, according to official brochure

August 9, 2012 at 10:24 pm in reply to: F-35 News thread. Part Deux #2338666

Goldust
Participant

the F-35 shown above looks like its got its pitot tube in the same position as on the first prototype of J-20. would production units even have a pitot tube at all?

July 9, 2012 at 12:24 am in reply to: China awaits fighter export breakthrough #2286527

Goldust
Participant

FC-20 is said to be future designation of PAF J-10s (if they ever get exported there)

http://en.wikipedia.org/wiki/Chengdu_J-10

well there’s no official source 😉

July 8, 2012 at 10:57 pm in reply to: F-22 deployment to the gulf being reported #2286560

Goldust
Participant

EDITED

July 8, 2012 at 10:48 pm in reply to: China awaits fighter export breakthrough #2286566

Goldust
Participant

I thought the J-10b is going to be exported to Pakistan as the FC-20?

JF-17 is exported to Pakistan. NO such thing as FC-20 :rolleyes:

July 8, 2012 at 10:47 pm in reply to: F-22 deployment to the gulf being reported #2286568

Goldust
Participant

EDITED

July 8, 2012 at 4:49 am in reply to: China awaits fighter export breakthrough #2286813

Goldust
Participant

J-20 and J-10B are not for export. JF-17 and early J-10A are for export.

July 8, 2012 at 4:45 am in reply to: F-22 deployment to the gulf being reported #2286814

Goldust
Participant

um, it did that all the time in Kosovo and Iraq.

btw, the same “not a single xxx was lost in Libya” can be said for a lot of planes and they did not use jamming.

Iraq shot down over 20 American planes with technology that were 20+ years behind. http://en.wikipedia.org/wiki/List_of_combat_losses_of_United_States_military_aircraft_since_the_Vietnam_War

Buk-M2E which is a 2000s system can easily shoot down F-22s and B-2s.

Yugos also managed to shoot down several American planes including an F-16C and 2 A-10s http://en.wikipedia.org/wiki/Kosovo_War

July 7, 2012 at 11:18 pm in reply to: F-22 deployment to the gulf being reported #2286877

Goldust
Participant

btw, if a second F-117 was hit by gunfire, that just reinforces my point. They had to get into gun range before being in serious trouble.

eh I’d like to see F-117 fly over enemy territory without EW jamming. Not a single Rafale was lost over Libya simply because of the power of Spectra.

July 7, 2012 at 9:24 pm in reply to: F-22 deployment to the gulf being reported #2286886

Goldust
Participant

The F-117 that was shot down was at 13km distance and flying the same route it had done before.

Nobody claims that 5th gen fighters are invisible, just that the range at which you can detect them are extremely small. The aforementioned 13km would be classified as such.

On the night of the F-117’s loss, it was in a flight of 8 F-117s. If it were so easy to detect, why were none of the others shot down that night (or ever since)?

Only 59 F-117As were ever built, and 6 of these already crashed prior to 1999, so how can 8 of them be deployed in 1 mission at the same time? :confused:

http://en.wikipedia.org/wiki/Lockheed_F-117_Nighthawk

Furthermore, another F-117 was damaged by gunfire though it wasn’t shot down. http://en.wikipedia.org/wiki/Kosovo_War
Author

Posts

Viewing 15 posts - 451 through 465 (of 474 total)

← 1 2 3 … 30 31 32 →