BigDaddyWatch
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Both Y-8 and Y-9 are aerodynamically copies of the Antonov An-12. China copied
the An-12 into the Y-8 many years ago, IF you really got the know-how about
its aerodynamics and design priniciples (which you should have if you consider the
plane indigenous), what's the need to take the aircraft to the Ukrainian Antonov
Design Bureau (which originally designed the An-12)??
When China put the AEW radar on top of Y-8 and made the KJ-200, it was
aerodynamically unstable, the Shaanxi guys did not know its design
principles, as a result, a KJ-200 crashed killing many crew. This is clean evidence
to show that the when Chinese "copy" something, you don't really "learn" into
it, you just blindly build it under a Chinese name!
It was only after the Antonov OKB in Kiev looked into the plane that they told
you that additional control fins on the tail are needed for adequate control
of the plane. Thats true knowledge, which is only achieved when you design
something from scratch and really conducted any R&D related to it.
The same happens with the Chinese Flanker copies, you had been building
the Su-27SK under the name J-11 for years, but still when you needed a carrier-based
variant, the Shenyang had no clue how to modify them, because they don't
have the background Intellectual Property of the design.
It was only after Ukraine again dropped in to help with a ready-made Su-33/T-10K
prototype that Shenyangs got to know where what should go and how to do it.
As of the foreign involvement in Y-9, its very certain that it too has received help
from Ukrainians but since its aerodynamically not much different than the Y-8
that you build, the foreign involvement could be lower. Its too early to say at this
point since the Y-9 is only now getting inducted.
You only rehash the history of Y-8, KJ-200, J-11B and J-15 but offer zero proof of any Ukrainian or Russian involvement with the Y-9 project.
As for the J-10 being a clone of the IAI lavi of Israel is nothing more than a rumor since both China and Israel have denied the J-10 being a copy of the Lavi. The only thing is that the two planes have some superficial resemblance of each other. By that logic the Flanker is then a copy of the F-15. As for the J-11B and the J-15 it's true that those airframes is Soviet designed but all of the internal subsystems are all Chinese designed and made including the engines.
With the exception of the J-10A engines that is still using the Russian build AL-31 because WS-10A engine production can't keep up with demand for J-11's all else is build in China domestically. While India is still deeply dependent on its foreign suppliers.
In 2010 China only imported 493 million dollars of arms and exported more than 1,4 bilion dollars of arms. India in the same period imported more than 3,3 billion dollars of arms and India isn't even amongst the top 15 arms exporters in the world meaning exports of less than 95 million dollars. So China is a net arms exporter while India is the world's largest arms importer. This shows you the difference in the level of development in the arms industries and the dependency of foreign arms and technologies between China and India.
en.wikipedia.org/wiki/Arms_industry#World.27s_largest_arms_exporters