Eh, the Chinese aren't a threat despite what McNerney thought. If nothing else the C919 isn't Comac's first attempt at an airliner, the ARJ21 was.
Airliners are extremely complex. Take a look at Mitsubishi. They've got experience building planes, turbines, etc. Yet Mitsubishi is still struggling with the MRJ, in large part because the MRJ is the first Japanese built airliner in an extraordinarily long time. As for the Chinese, McDonnell-Douglas sold tooling to the SAIC (now Comac) so that they could build licensed MD-80s (some of which are flying in the US). The tooling was eventually used to develop the ARJ21 and Comac still couldn't make it work well. There are a few ARJs flying in China, but even the domestic airlines don't want them. The Canadians tried their hand at a modern airliner with the C-series, and that pretty much bankrupted Bombardier.
China could really be set up to take a lot of commercial aircraft market share over the coming decades.
Even if (or when) Comac were magically able to produce a competitive airliner, there's more to selling planes than just building them. Support is a huge issue. The Russians have significant experience successfully building airliners and yet even with western turbofans Sukhoi couldn't find a market for their SuperJet. They sold a few to the Belgians and the Mexicans but those have largely stopped flying. Why? There's no support. Boeing and Airbus have huge support networks all over the globe. Comac has absolutely nothing like this in the works or in place.
I don’t see how the west wins this one
Boeing themselves values the Chinese commercial aircraft market at $3T and 8,000 aircraft over over 20 years.
Of that 6,000 are single-aisle (737, A320, C919).
https://www.cnbc.com/2019/09/17/boeing-says-china-needs-to-s...
Once its certified, they will instruct their companies to buy the C919 in the thousands.
The US will move to lock Airbus and China out of its massive, wildly profitable domestic airline market through protectionism. Which is exactly what China is guaranteed to do, either directly or indirectly, as it pushes its own airplane manufacturing efforts to the forefront in the pursuit of its economic self-interest.
How many Soviet-made jet planes did the US buy from 1950 to 1990?
The difference now with that China is that though some would say that China is capitalist in name only (and they wouldn't be completely inaccurate) it is part of the WTO and thus part of the global capitalist system to some extent. Consider for a moment that exports account for a greater % of its GDP than does the US.
Arguably China is much more like Japan of the 80s and Korea of the 90s than the soviets of the 50s.
Now, if you look at the parts going into the Comac C919, a huge proportion of the parts are non-Chinese: https://www.scmp.com/business/companies/article/2092656/chin...
Basically the tail, wings, radar cover, fuselage, interior, and assembly is Chinese – everything else is US and EU. (The C929 being co-developed with Russia has a greater percentage of parts home-made – this is exactly how China is ramping up its aircraft carrier development, methodically and incrementally bringing more and more expertise onshore).
Buying the C919 when it hits mass production will be like buying a very familiar but cheaper Airbus or Boeing equivalent. Neither Japan nor Korea nor Russia have ever managed to pull this off.
Who knows what will happen. Time will tell. Looking to the Soviet past is not a good indicator of what is coming down the pike imho.
In addition the US and EU may short-sightedly try to protect their aircraft manufacturers but US+EU are less than 45% of world GDP. Plenty of people will be perfectly satisfied with a Chinese plane when their only choices are all foreign manufacturers.
* This isn't to say I want to be first -- I typically wait a few years before flying with a new model, though it's hardly a perfect heuristic: I had no idea the 737-Max wasn't really just another 737.
China already de-facto does this in almost every market, so there's nothing new here, really.
It'd be nice to have WTO rules actually followed, but I don't think it will be this way.
There is no reason for the USA to block out Comac if they are flying with Pratt&Whitney or GE/CMF engines or Honeywell flight controls.
The J-20 has appeared (and flied and demonstrated its weapon bay) on multiple public air shows where foreign medias were invited. I believe they also have a few squadrons in service already.