Chinese Engine Development

sunnymaxi said:

this is first time AECC present smaller Turbofan Engines in Airshow.. mainly focus on smaller/medium class Business jets.

1. AEF100 turbofan engine is a family-developed high-bypass turbofan engine based on the already certified and licensed AES100 engine.

It meets the power requirements of 2-5 ton medium- and high-altitude UAVs and 5-7 ton business jets with fewer than 10 seats, offering excellent economy, safety, reliability, and maintainability.

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2. AECC also present The F918 turbofan engine, which debuted, is a 20kn thrust-class turbofan engine with a maximum flight altitude of 20 kilometers. It is primarily used in high-altitude, high-speed reconnaissance and strike drones and business jets..

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AVIC business jet can now very well return. and there are few other private Chinese companies too. they actually trying to enter this very niche market.

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Michael90 said:

Are they operational? If yes, then I can see the business jet industry taking off indeed.

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MeiouHades said:

Is there anything about a high-bypass version of a WS-15 for future heavy military transport aircraft? Seems like a no-brainer considering that the WS-15 is a much newer and more advanced architecture than the WS-10 and its derivative family.

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ACuriousPLAFan said:

Some information from SOYO on the development and progress of Chinese engines. Note that many of them likely aren't exactly new, and this serves more as a compilation of information.

Do also note that some of the information provided here (particularly on the CJ-2000-on-C929 and AEF3500/WS-35 progresses) should be kept in KIV status for the time being, given the lack of more concrete correlated information that we have access to as of now.

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- The 450 kN-class test stand likely completed its construction project at around 2021 - 2022, and has been in operation for over two years now.

- Furthermore, during 2021 - 2022, construction projetcs began on several other test stands of different thrust classes, including 300 kN-class and 250 kN-class models. These were delivered and put into service in early last year (at the earliest).

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- The CJ-2000 engine may/might be ready in time for the C929's rollout and first flight (though not necessarily allowing the C929 to have its maiden flight with the CJ-2000 engines, per one of SOYO's subsequent comments. Other sources suggest a more conservative 2033-2035 timeframe).

- The WS-35 is likely the AEF3500 that was unveiled a few years ago (presumably). It could be equipped on the new large transport aircraft (most likely of the C-5/An-124-category, perhaps derated) and other large aircrafts.

-The AEF1200/1300 engines can meet the refit and upgrade requirements for the Y-20 family.

- The AEP400/500 and WJ-10 engines can fulfill the installation/engine replacement needs for new aircrafts such as the new turboprop regional airliner, the new medium transport aircraft (Y-30?) and the KJ-600.

- The J-15 family can be upgraded with the WS-10H2, the J-20 family with the WS-15, and the J-35 family with the WS-19.

- The C909 might not switch to Chinese engines, but the indigenous large-bypass, medium/low-thrust engines developed by Guizhou Engine Development Institute could power newly designed and developed Chinese regional jets.

- The 15-FYP and 16-FYP periods (2026 - 2035) will be a critical phase for the batch application and widespread adoption of Chinese national aircraft engines. Nearly all major projects will be equipped with Chinese engines, and the market share for imported engines is destined to shrink.

- The H-20 could be using large-bypass engines, but I believe it won't be from the WS-18 series; instead, it will be a newly-designed engine.

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sunnymaxi said:

the beautiful thing is, all Engines mentioned by Soyo already is in advance stages of development.

but don't forget.

1. AECC has variable cycle Engine program too

2. there is also high thrust turboshaft Engine. most likely debut soon.

3. 250kn Engine almost complete now.. i mentioned this model back in 2022.. the most interesting part is, we have many High bypass Engine programs simultaneously under development by different AECC subsidiaries.

this is open Air test bench facility. can support up to 450KN class Engine.

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