I doubt that china will ever make a civilian plane that is competitive in international markets, and that also includes the engine part.
Even if china is able to make one that has decent performance and cheaper than the alternatives, it will most likely still use western tech, and that will always be a political risk that international companies probably won´t take. Unless that it will basically only produce planes for its domestic market, regardless of how good they are, no matter the cost to companies and consumers.
And more important than economics of whatever civilian planes china produces, its their safety. Chinese planes will have to have safety levels equal to those of boeing and airbus. And that wont be easy.
I'm calling BS on this. There's nothing magical about commercial aviation from a technology point of view. China can build military jets, cargo aircraft, and also space vehicles. Building a passenger aeroplane isn't exactly pushing the envelope. The main issue is more commercial than technical, but the key thing China has that it didn't have 20-30 years ago is a large, prosperous domestic market for these technologies to mature and evolve before emerging into the global marketplace. Now, China has a huge domestic aviation market where she can perfect her product. A viable domestic high-pass turbofan is the last major engineering hurdle - something that Chinese aerospace hasn't really needed to date, being focused mainly on military products, but it's certainly not beyond the ability to Chinese industry to develop one, and they are in the works at the moment.
As for safety, no manufacturer is immune to these issues, and the aviation industry knows it. China has gained a lot of experience from the Xian MA-x00 turboprop programme in diagnosing and resolving safety issues, and lessons will have been learned from that which have doubtless been worked into the C919 programme from the get-go.
Using western parts is an essential step on the way to indigenous development. Over time, newer versions of the C919 will doubtless use less parts, as benchmarks can be established and the real world behaviour of the design studied and diagnosed. Should western suppliers become problematic, this process can be sped up (less than ideal, but doable) or sourced from elsewhere. It should be remembered that the west isn't monolithic, and European governments have always been happier to deal with China than the USA. Even so there are many non-western suppliers in markets such as Brazil, Argentina, Russia, Ukraine, Iran etc.
This is an article from march 2020. Since then, comac has been blacklisted by the US government. It hasnt been barred from acessing american tech. At least, not yet. But that political risk is now more real than ever, IMO. I wouldnt be surprised if ryannair would back away from c919 in the future (if it hasnt already decided so). From what i can understand from the article, ryannair only has a MoU with comac for a stretched 200-passenger version of c919. AFAIK, there is no news of this version. Ryannair helping c919 be certified by EASA???? thats comedy.
Perhabs in the future. But that wont happen with just the c919.
Because the US and europe have decades of advance regarding airplane tech.
heh? to where they will leapfrog????? to the moon??
Ryanair is an EU and not US company. The EU has always opposed American sanctions on China, and Ryanair doesn't operate in the US and has no intentions of doing so. While I don't think Ryanair is particularly likely to buy into the C919, the American issue is the least likely problem (especially as Biden has shown minimal interest in a trade way that would decimate Boeing if China pressured domestic airlines to drop Boeing orders, at the same time excluding GE from a potentially lucrative agreement).
The much more serious issue for Ryanair is that it is completely invested in Boeing, and is a hyper homogenised airline no even based on a single manufacturer, but a single *model*. Switching from the 737 would be incredibly painful for Ryanair. I suspect they want to encourage Comac to make a 200 seat model not so they can *actually* switch, but to have it as a Sword of Damocles hanging over Boeing to ensure Ryanair keep getting their 737s at firesale prices (which, given the MAX debacle and Covid19, they will anyway).
EASA will likely certify the C919, just as they certified the Sukhoi Superjet and the 737 MAX. Not to do so invites retaliation. Loosing certification for Airbus in China would be much worse for European manufacturers than having Comac in Europe.