There have been various sources confirming that since J-11B (AKA J-11A is not like this) Sino-flankers have used a MIL-STD-1553-esque bus that China effectively learnt during the 1980s when there were some quite extensive tech exchanges between China and the US. In particular I remember Yankeesama saying this in a podcast with Shilao last month. I’ll throw the link here once I confirm this is indeed trueDo we know for sure that Chinese electronics onboard flankers are built fundamentally differently?
I.e. not separate (federated) subsystems, but main computers and so on?
B/c there is a certain level of intrusion from which you basically have to spend as much money as a new plane will cost(with most flight tests needed anew) - only to get the very same plane in the end.
Edit:link is here
At 1:26:45 when talking about why the J-11B wasn’t multirole capable Shilao (not Yankeesama, sorry about that) mentioned MIL-STD-1553B. It’s not as decisive as “J-11B is equipped with this” but from his words it can be easily inferred that J-11B is equipped with said bus. There may also be other mentions of this topic in the podcast, if anyone notices anything don’t hesitate to point them out!
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