Simple. J-31 is an attempt to COPY what the Americans have developed on the F-35. And as anyone knows a copy, a Xerox if you will, is never as strong as the original. Every significant feature on the J-31 is a feature first developed by the Americans.

Does anymore need to be said?

No, you dont really need to say anything else.

It is only the reaction of someone who coolly analyzes the information before jumping to conclusions.

After all as you are sure about this, once the author of the article has not corrected its text so far, or are you just guessing that the text are wrong.

http://www.flightglobal.com/news/articles/brazilian-air-force-confirms-gripen-acquisition-numbers-406213/

In my humble opinion I also think the text with the amount of US 5.8 Billion is wrong, however if the value of US $ 5.8 billion for 36 Gripen E / F is wrong, maybe the number of 108 Gripen E / F for Brazil also can not be wrong too?

No, the number of aircrafts is correct, there were severall journos in there, who have published the story (i´ve linked to one of them, by the way), all reported 108 airframes.
Another thing that you might be interested in, in a few day´s (4th December) the Commander in Chief of FAB, Junichi Saito is going to the Brasilian Congress to explain the contract (and more specificaly why it went from 4.5 to 5.4 Billion US$), it should be interesting.

The F-35’s DAS offers situational awareness far beyond any HMD or HUD on any plane to date. This explains the Chinese attempts to copy it.

An HMD is an HMD, an HUD is an HUD, the AN/AAQ-37 (AKA DAS) is neither.

In fact the F-35 DAS has detected and tracked a two-stage rocket launch at a distance exceeding 800 miles during a routine flight test. This gives F-35 the capability to be part of the USN Fleet defense against ballistic missile threats like the so called “carrier killer’ DF-21D. No HUD or HMD begins to offer this type of capability

You are comparing an HMD or a HUD (or both) to six IIR cameras distributed around an F-35 arframe… And the Chinese are the ones who dont understand what they are doing?
Ok.

And before you answer to this post; do you have hard data on the J-31 sensors in order to make a direct comparison with their American counterparts? No? Then dont bother to answer.

, but who fakes such an image so blatantly and still insists to know the truth is either plain stupid

Deino, almost certainly this one.

For the rest, nothing new here, move along chaps (and a merry weekend for everybody).

Cheers

I mentioned the engine earlier. And the RM12 is not a “slightly modified GE F404”, over 50% of it is designed and built by Volvo Aero. But it�s american so… The other things you write about, it´s all american, what has that do to do with England stopping Gripen to be exported to Argentina?

This forum should have a face palm smiley…
Edinburgh is near New York, Gec Marconi was an American Company in Milwaukee, Sea Vixen was a Westinghouse radar that was flown in the F-106 and Selex is an Hawain company, right?

If you replace simple things as ejectionseats, landinggears and parts of the fusalage with SAAB/EMBRAER products AND put the SAAB/Ericsson NORA radar in it, what are the brittish gonna do? Going to the US embassy and cry about the engine?

Let me rephrase that for you:

“If you replace the ejection seat, part of the landing gear, part of the fuselage, the radar with a non existant decade old NORA AESA prototype, the IRST, part of the EW suite, the DRFM Jammer/dispensable radar decoy, the Helmet Mounted Display, and a few bits and other bobs all over the aircraft, what are the brittish gonna do? Going to the US embassy and cry about the engine?”

“What have the romans ever done for us?”

And why would the Swedes and the Brasilians do that? For 24 units?! To Argentina?!!
Snowing all over the place in Ougadougou!

what are the brittish gonna do? Going to the US embassy and cry about the engine?”

This is an interesting question and there are severall things that HM Government could do; but one obvious answer is, the British MOD would simply call any of the main Western electronic and aerospace company´s that might be interested in this “Argentinean Gripen” and ask “do you remember those contracts that you have with us, or those competitions that you´ve entered related to the equipment XYZ?”
The thing is, usually the British MOD is the second biggest Budget in NATO and virtualy every single western defense company has some pretty interesting contracts with them, GE, Thales, PW, GDynamics, SAAB, MBDA, Raytheon, Boeing, etc, etc, etc, you name it… And off course they would be highly interested to get into a row with the British MOD because of 24 airframes for Argentina…
Try Elta.
Oh wait, Crowsnest! The LM offer uses ELTA radars (something around thirty sets)… At least untill Crowsnest is decided, delete ELTA.

With money and will everything is possible, the Gripen could be De-Briticized, they could even cover the entire aircraft with Chinese and Russian kit, but the thing is, roughly 30% of the Gripen NG is British, its an helluva lot of money and will for 24 airframes…

Long question, short reply; it was cheaper.
When Sweden looked for a new generation fighter in the early 80´s they did something they had´nt done for centuries. They invited foreign customers to compete with SAAB!! It was the F-16 and F-18 Hornet and the Gripen. The Gripen won the deal, but it had to be done by cost saving measures, like COTS in the case of ejection seats and other mediocre things. When it comes to the radar… I am putting a bet that SAAB/Ericsson has already solved that long before the Argentinans put their ink to the paper.

Mediocre things and COTS…
Like the Engine? A slightly modified GE F404? And the entire sensor system? The radar? The PS-05A, the one with the cassegrain antenna built in Edinburgh, taken almost directly from the Blue Vixen, and a great big chunk with a “GEC-Marconi” label on it? And the FBW, the one that was taken directly from the General Dynamics Viper? Or the famous TILDS, that magnificent data link, wich the hardware is entirely a “built in America” thingy, albeit with Swedish specifications…
Freaking hell, the “old” MSA radar, is covered with “Selex” (ex-Ferranti, ex-Gec Marconi) pieces and bits, and SAAB didnt move a finger to “solve” that in two decades.
The entire aircraft is covered with foreign content, far from “COTS” and “mediocre things”, a great big chunk of the propulsion and sensor suite is basicaly Anglo/American hardware.
Next time trawl a bit in the historical content of flight global.

i think Brazil would co-fund replacement/indigenous solutions

Brasil is not on the business of giving Martin Baker competition. This entire story is a political idiocy from day one.

JSF will be made to work (our spam cousins will throw money at it until it does just as they have with almost any other big programme with technical issues) and technically the STOVL version is km ahead of any alternative. I just hope that costs don’t keep rising to the point that it becomes the new B2 ( technically frickin awesome but so expensive that it becomes impossible to have a big fleet so unit cost goes up so fleet size goes down) rather than the new f16 that we were all promised

This is actually one of the best posts in this entire topic, i´ll leave a few comments on it:

a) The program cost has indeed been steadily rising
b) While the production costs by unit have been getting lower, they have been getting lower at a much slower rate than the JPO, LM and the USAF predicted for more than a decade (before 2012/13). According to the 2009 USAF Budget, the (roughly) 85 million US$ URFC that Bogdan is promising for 2019 should have been attained circa… LRIP 7, thats 2013.
c) Specificaly speaking about that anology with a B2, there´s an interesting factoid for the UK and the Marine Corps, the F-35B is the most expensive fighter aircraft on production today (normal, a STVOL, supersonic, stealth strike fighter that weights more than a Tornado GR4 is going to be expensive) and it will probably maintain that status for some time
d) The simple fact that no one “jumped out of the boat” and the program is getting orders outside of the original MOU signers, while being late and the unit cost (roughly) doubled in a decade, speaks volumes on how capable, the multiple air forces that are lining up to receive the JSF, think the aircraft will be

Cheers