Sukhoi signed a contract to produce ~100 Su-27sk crap. Chinese engineers were shocked by the poor quality of its components and performance.
Sukhoi didn't sighn anything, China did. Before China signed any contracted they evaluated and tested the aircraft, they were more than aware of the aircraft's performance and what they were getting. We know Shenyang is a dishonest cheating company. They refused to let a Sukhoi representative into the same factory that Sukhoi helped set up--I wonder why?
It's no surprise that a company with such poor business ethics would stoop to the level of breaking a contract and then claiming the reason to be because the aircraft didn’t 'satisfy their needs'---yet---yet production continued
Even worse is that the thieves at Shenyang asked Sukhoi for an upgrade, after Sukhoi gave them an upgrade on a small batch of aircraft Sukhoi was waiting to upgrade to rest of the fleet, but this never happened instead Shenyang once again cheated Sukhoi by copying their upgrade.
as for quality, China assembled almost everything locally
so that has nothing to do with Sukhoi. If Chinese machinist decided the be cheap and by feeding poor quality alloys through CNC machines its all on them, if Chinese assembly workers did a poor job with installation that is again not our fault, if Chinese quality control was poor--not our fault.
It's a little ironic that Lock Head Martin was considering using the ejection seat from the SU-27 on the F-22 and yet China keeps on importing engines, but the thugs at Shenyang use quality excuses in order to cheat Sukhoi. Malaysia, India and everyone else is happy with their Sukhoi, in fact Malaysia operates F-18's and they had nothing but good things to say about the SU-30.
It thus decided to halt the production and start building its own J-11B.
After they sucked all the technical know how from the SU-27. We all know the types of aircraft China produced before they had permission to produce Sukhois locally and those Chinese aircraft were poor. Even while your J-11's were being produce China tried to purchase the Irbis-E radar from the SU-35, Russia said
no.
As already said 100 times, there is no international treaty or law to protect your fancy Sukhoi. It is a weapon vendor, its design is not protected.
You’re too funny, you do know that Britain payed Germany royalty fees while they were at war because Britain manufactured the Gatling gun?
Just about every country recognizes copyright laws even ones that are at wars with each other but apparently in China they do not.
And again did you forget about the pak-fa patent I posted earlier? Would you like for me to post other patents?
Have you ever wondered why no one wants to do business with China? Do you remember the Harpy incident? America protested to Israel not to upgrade Chinese UAV's because America claimed that their technology was used on the Harpy--even the Americans know that China will blatantly copy their technology.