Today the former students (the Chinese) have become the masters. Chinese industry now has the ability to produce components that the Russian electronics industry (after almost two decades of no investment by their government) is no longer capable of either designing or manufacturing. The initial failure rates on the production of transmit/receive (T/R) modules for the Active Electronically Scanned Array (AESA) radars being designed for the Mikoyan MiG-35 and the Sukhoi T-50/PAK-FA 5th-generation fighter, for example, were so high that it would have bankrupted any western firm involved in a similar programme.
Not surprisingly, this years CIDEX show saw groups of Russian specialists going through the halls and looking for components that they could source out of China to be utilised in Russian-designed weapon systems. Russian specialists will point out that they are now at a huge disadvantage to the Chinese in two very significant respects.
One is that the commitment by the central government in resources to the defence electronics sector is both sustained and serious. They can take a field where there is nothing but flat land and wild grass, said one Russian company representative, and the next thing you know there is a full-blown factory or design centre there turning out a world-class product.
Source:
http://www.defence.pk/forums/bangladesh-defence/192696-mig-29-bought-baf-13.html#ixzz209lEr6gT