There is one saying that Chinese start the designation of their 1st indigenously made plane in its class with “ 5” : to be H-5: 1st gen of bomber in PLAAF service or Q-5, 1st attacker , Z-5 the 1st helicopter or Y-5 and J-5 the 1st fighter. Because 5 pronounced in Chinese is close to the meaning of “None” in Chinese, which means everything starts from “none”. A belief 1st documented some near 3 thousand years ago by an ancient Chinese philosopher-Lao Tzu. Modern physician Niels Bohr certainly adopted this thought when he found his “model of atom” comes to the dead end, and he refered to the Lao tzu’s thought as the last explanation .;)
To the other Q, Chinese just modified the existing Mig-15 to trainer themselves but not made them so it there no У ΜиГ-15 trainer made in China.
One saying is there are total up to 1460 Mig-15s imported from/given by USSR to China in 1950s. no one is made in China, because the starting licensed copy is Mig-17, which is designated J-5 and made in China.
… If thats the case then the ‘mystery’ of that vessels end is all spin then. They knew exactly what happened to that ship from the first debrief of the sonar operators….if any that were on duty when it was hit survived?.
…
We wouldn’t have the answer for that for sure , usually only the chosen content can reach our audience’s ear. Truth always subdued to relevant power s’ interests. We see Yanks gain the most from this incident, evidenced in they chased away the Japanese PM they don’t like, kept the Asian outpost in that country and further strengthened their mandate in “Korean peninsular peace mission”. Unexpectedly Gaining little is SK’s president as his party lost local election anyway, reason? The cheonan incident didn’t spur the emotion of the ordinary people as the Politicians initially planned. Having say that, obviously the storyline has to service the purpose. So the obvious question of the sonar soldier still surviving or not really doesn’t matter.
Wilk,
…
Reliable detection is not a precise science admittedly but using Cheonan (who’s circumstances we dont know yet – not hard to torpedo a ship with no sonar watch set is it?!) or Belgrano who’s ASW equipment was, IIRC, inoperable anyway, and had to deal with torpedoes fired from a couple of thousand yards off, isnt really a true indicator of how a competent and alert US Carrier group would cope with a torpedo attack from an SSN deploying Russian 650mm weapons.…
Obviously you didn’t recall correctly as the Ship allegedly being torpedoed was with sonar watch on:
… Underwater, tracking submarines relies on active or passive sonar. Passive sonar uses microphones to listen for the sounds of sub operations. Active sonar emits sounds and listens for the echoes as they bounce off of submerged objects.
The Cheonan was operating its active sonar at the time, South Korea’s Navy officer Kim Young-kyu, a spokesman for the U.N. Command in Korea, told The Associated Press. It wasn’t clear why the ship didn’t detect the sub
…
http://www.military.com/news/article/sub-attack-came-near-drill.html
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Russia says sea mine sunk Cheonan: report
July 28, 2010 =-0987
The daily newspaper Hankyoreh reported yesterday that Russia has concluded the sinking of the South Korean warship Cheonan was a sea mine accident, not a torpedo attack by North Korea.
If the report is true, Russia will be the first nation to try to absolve North Korea for the incident, which is considered the most deadly attack on the South’s military since the Korean War.
The Defense Ministry denied the newspaper’s report.
The Hankyoreh report was based on what the vernacular paper claimed is an official document from the Russian government. Titled “Russian Navy experts group’s review of the cause of the sinking of the South Korean ship Cheonan,” the document claimed the explosion that sunk the Cheonan was an accident.
The document was cited as saying that the Cheonan was cruising in a shallow area close to the shore when its propeller got tangled in a net. As the corvette was trying to get into deeper sea, the ship touched an antenna-shaped detonator of a mine, which triggered the explosion. It did not say whether the mine was North Korean.
A Seoul-led multinational investigation in May concluded that the sinking, which killed 46 sailors, was a torpedo attack by the North.
The ministry refuted the Hankyoreh dispatch and the Russian report it supposedly described. “There is no possibility that the Cheonan was exploded after hitting a mine,” said Defense Ministry spokesman Won Tae-jae at a news briefing held yesterday afternoon. Won said Russia has not informed Seoul of the result of its own investigation into the Cheonan case, which he said is still ongoing. “Currently, the Russian team is reviewing materials it collected on their visit to Korea,” he said.
A group of Russian scientists visited South Korea between May 31 to June 7 as a part of the Russian investigation into the Cheonan tragedy. A spokesman of the Russian Embassy in Seoul also told the JoongAng Ilbo that the Russian government has yet to inform Seoul of the result of its investigation.
By Moon Gwang-lip [joe@joongang.co.kr]
Link below: Some images ( screenshots) of PAF’s JF-17 test firing PL-5 AAM:
so.. does this IP right cover the J-15? :diablo:
At least Russians have no issue on that::cool:
Russia has no questions to China about “copying” military equipment
FARNBOROUGH. July 19 (Interfax-AVN) – China is using Russian and Soviet know-how to develop and build aircraft, Alexander Fomin, first deputy head of the Federal Military-Technical Cooperation Service, said at a news conference at the Farnborough air show.
“It is an accomplished fact. China is vigorously developing its defense industry, not without Russia’s assistance, of course,” he said.
The Soviet Union built about 3,000 enterprises, while Russia handed China licenses to make aircraft and components,” he said.
“We handed over a large amount of know-how to China, including information related to the defense industry. It is not surprising that it repeats itself in Chinese products,” he said.
Asked whether China has developed a fighter jet which it claims excels Russia’s Sukhoi Su-33, Fomin said, “I can neither confirm, nor deny this.”
“Concerning the Su-33, Russia did not deliver such planes to China. If our Chinese partners have them, they were not received from Russian sources,” he said.
Fomin said Russia has no questions to China so far. “We have an agreement on the protection of intellectual property rights. If we uncover copyright violations, we will deal with this within the framework of the agreement,” Fomin said.
sd dp
(Our editorial staff can be reached at [email]eng.editors@interfax.ru[/email])
Spin it how you want sir but it is what it is. Theft.
Just because Sukhio or KNAPPO or Irkut or such are not “complaining” does not mean there is no theft here. Who is to say that Putin did not tell these firms to shut up.
What can i say to some one who doesn’t believe “OFFicial” source yet like to live on whose little dreamland?!
… Nope, I think the Russians realize the craptastic quality of their competition and are feeling pretty good about their products & services in comparison.
If it’s the case, Their won’t make so much noise about possible J-11 export and won’t stop the RD93 export to china because it powers the Fc-1, Of which the Russian accused posted a direct threat to the same engine powered Mig29
Well, I am not very sure about your concern, the number 79 fighter jet in the picture is a well documented Su-33 shipborne fighter.
Yeah….. Too bad they had to rip off the intellectual property of Russia for the airframe.
How are you so sure the same IP right hasn’t been granted to Chinese for their internal usage?! Have you ever heard any official complaint from Sukhoi for your casually accused “rip off” IP? If you know, Jane’s knows, everywhere knows, but the Sukhoi doesn’t know?
Russians concern mostly on possible export of J11, in which scenario, the granted IP right is not covering.
Do you know if they are finally starting to build series J-11B’s with the WS-10? That would be very good news for the PLAAF. I wonder if we’ll see them on the J-15 and J-10 at some point?
You know I’ve always wondered what would happen if you were to put an F100 or F110 on a Su-27. The engines are very close in size and performance. Considering that significant parts of the WS-10 were supposedly heavily influenced by the CFM56 core (the same core as the F110 engine), I guess now we have some sort of answer.
Of course, look at the picture taken in early 2009

and compared to the one taken recently (may)

Plenty of J11bs have been delivered to PLAAF and some start to be delivered to PLANAF
As illustrated in my last post, the max thrust of WS-10 is more closer to that of F110 then AL31F, furthermore, AL31F features 4 stages fan compared to WS-10’s 3 stage fan, saying WS-10 is a knockout of AL31F shows how ignorant those accusers are
The WS-10 has noticeably larger nozzles than the AL-31FN. The engine as a whole also seems to be heavier. Does that have any affect on performance?
Well, Ws-10’s size is slightly larger than that of AL31F, as confirmed by WS-10’s chief designer, but overall, both engines are more or less the same in size:

AL31F on the left and WS-10 on the right
But meanwhile WS-10 has a greater thrust, when during its endurance test, WS-10’s thrust reached over 120kN when its PLA angle only at 108°, ( the maximum PLA angle usually is 120°, which is coordinated to max thrust), while an AL31N’s max thrust is slightly over 120kn, obviously, WS-10’s max thrust is very close to the 132 kn level as previously expected.

There’re a lot of information from this CCTV report on the WS-10 “taihang” turbofan engine, including the screenshot of the above:
Yes, the hook is clear in that picture… as are the full-span leading-edge slats.
Which makes it very clear there is no folding wing on this aircraft, in contrast to the real Su-33.
It could be flown off ex-Varyag as a training aircraft, but it could not be taken down into the hangar without folding wings.
…
Look at the fighter on the left in below image, isn’t there clearly a “full-span leading-edge slats” as well? So it’s also without “foldable” wings according to your observation, but the plane on the left is a real Su-33 and we know it’s with foldable wing.

Conclusion simply can’t be drawn in such a way.
Finally, after so many years, the WS-10 turbofan engine eventually is showing CLEARLY to people that it has become an elite member of powerplant choices to the highly capable fighterjets.

Any doubt?
😎