Chinese Engine Development

[GiantPanda]

AEF1200 is WS-20

I don't know. Rumors were that WS-20 is the AEF1300. The blade count is different with the AEF1200 vs WS-20 while the AEF1300's was the same as the WS-20.

 

[Tomboy]

I don't know. Rumors were that WS-20 is the AEF1300. The blade count is different with the AEF1200 vs WS-20 while the AEF1300's was the same as the WS-20.

AEF1300 is the upgraded WS-20, it has wide chord blades while WS-20 and AEF1200 both uses narrow chord blade.

 

[sunnymaxi]

I wonder what power class of civilian engine it is? Is it a medium like CJ-1000A (for C919 and other narrow-bodies) or CJ-2000 (for wide-bodies like C929.)

I heard the light CJ-500 for regionals has been shelved so it could a more advanced replacement for that. But the little I heard about the AEF1200 is that it is suppose to be a heavier engine.

AEF-1200 first revealed in 2024 at Zhuhai air show.

AEF-1200/WS-20 and AEF-1300 all are the same machine but with little changes. like AEF-1300 has wide chord composite fan blades with improved BPR.

in super heavy category, there are only two Machines currently under development. CJ-2000A and WS-35.

 

[MeiouHades]

AEF-1200 first revealed in 2024 at Zhuhai air show.

AEF-1200/WS-20 and AEF-1300 all are the same machine but with little changes. like AEF-1300 has wide chord composite fan blades with improved BPR.

in super heavy category, there are only two Machines currently under development. CJ-2000A and WS-35.

Isn't the WS-35 just a military derivative of the CJ-2000A or vice versa? Assuming the WS-35 is a high bypass turbofan and not the next gen low bypass turbofan.

 

[sunnymaxi]

Isn't the WS-35 just a military derivative of the CJ-2000A or vice versa? Assuming the WS-35 is a high bypass turbofan and not the next gen low bypass turbofan.

yeah. most likely using the same core. though there is no official announcement but WS-35 designation indicate, this is High bypass category machine.