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Why jet engines aren't made in China

aakash.substack.com

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Re: Why jet engines aren't made in China

#42
post #38
post #11

Earlier quoted context omitted.

Isn't China currently among the leaders of material science with lots of top 10 universities located in China? [0] (in rankings that do not incorporate prestige but actual scientific output) [0] https://scholars-stage.org/china-and-the-future-of-science/

All I know is that they produce a lot of engineers, while the US produces a lot gender studies majors. I rarely say it, but I do not foresee much that they won't be leaving us sharply behind on soon, other than poverty and homelessness, which we have pretty well covered.

[deleted]

Re: Why jet engines aren't made in China

#44
post #35

Earlier quoted context omitted.

Chinese automakers do (or did) make ICE and hybrid cars, too. I suspect it's wouldn't have been good strategy to try to build those cars for the US, CA or EU markets. An ICE engine is relatively straightforward, but hitting emissions and fuel efficiency targets is complex. [1] And the future of ICE cars, especially in those markets, is limited... why build out emissions expertise, when you can get your foot in the do…

Chinese automakers do (or did) make ICE and hybrid cars, too. Mainly copies of Japanese and US designs.

My Great Wall SUV had a Mitsubishi engine and a GM computer.

Re: Why jet engines aren't made in China

#45
post #35

Earlier quoted context omitted.

Chinese automakers do (or did) make ICE and hybrid cars, too. I suspect it's wouldn't have been good strategy to try to build those cars for the US, CA or EU markets. An ICE engine is relatively straightforward, but hitting emissions and fuel efficiency targets is complex. [1] And the future of ICE cars, especially in those markets, is limited... why build out emissions expertise, when you can get your foot in the do…

Chinese automakers do (or did) make ICE and hybrid cars, too. Mainly copies of Japanese and US designs.

So? Japanese cars and motorcycles were derided for being cheap copies of European and US designs initially too.

Re: Why jet engines aren't made in China

#46
post #38
post #11

Earlier quoted context omitted.

Isn't China currently among the leaders of material science with lots of top 10 universities located in China? [0] (in rankings that do not incorporate prestige but actual scientific output) [0] https://scholars-stage.org/china-and-the-future-of-science/

All I know is that they produce a lot of engineers, while the US produces a lot gender studies majors. I rarely say it, but I do not foresee much that they won't be leaving us sharply behind on soon, other than poverty and homelessness, which we have pretty well covered.

There are about as many gender study majors in the U.S. per year as there are aviation engineering majors. That is one small niche of engineering majors that includes all of gender study.

Re: Why jet engines aren't made in China

#47
post #11
post #3

Earlier quoted context omitted.

Material sciences needed for modern jet engine blades are a closely guarded secret, and thanks to not manufacturing them in china, those secrets have managed to remain not stolen. Fun story: it is not just jet engines - it is only recently that china was able to actually make indigenous ballpoint pens https://www.bbc.com/news/business-38566114

Isn't China currently among the leaders of material science with lots of top 10 universities located in China? [0] (in rankings that do not incorporate prestige but actual scientific output) [0] https://scholars-stage.org/china-and-the-future-of-science/

its difficult to see from the lens of software and information technology, and open source academia, but physical science is often discovered via experimentation and cant just be brute forced. usually it disseminates as it is adopted into industrial process and is then copied. a lot of scientific discoveries are made due to impulsive-creative intuition

for example: - until the end of ww1 the haber bosch process was confined to germany

- jet engine turbine blades today

- most historically: https://en.wikipedia.org/wiki/Greek_fire , medieval napalm that nobody has been able to replicate even now

Re: Why jet engines aren't made in China

#48
post #31
post #16

While I think the scale of American decline is overstated, I think there is a degree of Hemingway's law of motion. A desired task that requires the most skilled makes those skilled people in demand. If a power has significantly more resources then they have more to offer those most skilled people. It isn't at all disputed that there are a huge number of scientific discoveries that have occurred in The USA by people b…

“America is in decline” is the consensus view. America dominating on all fronts is the contrarian view. I expect these views to swing like a pendulum in public discussion until something meaningful happens or until it’s clear in the rearview that America is in fact is more like UK, Japan, or Germany.

Certainly that's the consensus view. However, I have yet to see any evidence that people within the consensus actually have done any analysis to find the truth. They just have sort of feeling which is driven by the press which presents a story.

Re: Why jet engines aren't made in China

#49
post #2

This is a strange article. I did not find anything that is a blocker for China. China is a relative new comer to jet engines and this technology is tightly guarded by incumbents and needs time to mature. If China can master nuclear, space, chips, it seems a bit stretch to say they it is the Jer engines where they fail.

Material engineering is the well known blocker for China, same with semiconductors. They basically have to replicate 50 years of trial and error that is well kept under lock in key in the west. China hasn’t mastered chips either yet in the same way it hasn’t mastered jet turbines: they can do cheap (high yields, low maintenance costs per hour of use), they can do high performance, they can’t do both yet at the same t…

>"50 years of trial and error that is well kept under lock in key in the west."

Bollocks. Russia does that as well, single crystal turbine blades in particular so the west is not the sole gatekeeper here. Given the circumstances Russia might as well share the tech for some things in return

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