Chinese standard
Chinese Engine Development
- Thread starter jackbh
- Start date
right, but 9+ is still more than 7. I meant that if ws-15 indeed has more twr than F119, it'll feel almost surreal cuz of how much praise the F-22 gets for its engines and how much China gets dunked on for the belief that they can't make capable engines
Practically guaranteed. For an engine designed and manufactured with 2020s technology, it better has a higher TWR than a 1990s engine.
We know it's even more performant than the F119 during low alt and high speed too.
It's much harder with engines than elsewhere.
Unlike basically everything else, where digitalization of the last decades outweighs much of traditional know how, in engines it's plain material science, and lots of learning by failing.
Chinese catch-up in this field stretches over last 3 decades, there is no way to cut corners. Not here.
Not really. Design plays a huge part too. Look at the EJ200. The main reason for its high TWR is because of its clever load-bearing design without the VIGV and one less HPC stage than the F119.
Obviously materials science help, but it certainly isn't just plain material science that determines how good an engine can be.
See Japan. They have (or used to have) a great materials science field, but their engine design is, to put it simply, dogwater. Doesn't matter how robust your materials are, if you can't design good engines, it's ultimately quite meaningless.
Digital modeling and design tools inform the engine cycle design, mechanical design, and materials development. There’s still process improvement that can (and almost certainly has) been reaped through digital tech.
Report from the designing institute seems to say that it is full eletric driven, the GT is to generate electricity. GT does not drive the propeller directly, all the range is from the GT, electricity is just a intermediate means. This is said about their 80KW engine. There are 200-300KW and 1MW engines in development, no detail from the article.
Doesn't seem so. All the range is from GT, electiricity (and battery) is the intermediate means.
Diagram of 80KW power pack.
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There might be a typo here. Should just be 发电机, aka generator, and not generator controller.
Anyways, I know this is technically hybrid, but given how much China is pushing for pure EV cars, I sure hope they don't do the same to planes. Don't want them to become soulless as well. The Internal Combustion Engine must live on.
They sure know that. The linked article actually said that. Here I quote.
全电推进是实现航空零排放的终极目标，预测电池能量密度在未来30年内几乎不可能取得突破性进展
Translate, full electric propulsion is the ultimate target, BUT in the next 30 years it is almost impossible for battery to realized that goal.
China always walk on her feet, does what is within reach instead of bloated dreams.
ICE has no place in mainstream aviation though. GT is the best for hybrid aircraft due to its high power density.