Performance characteristics of the CJ-1000A are on par with the LEAP-1C with the initial CJ-1000A certification supposedly by 2025.
The last Zhuhai Air Show had a scale model of the CJ-1000A with details concerning the latest design and a quick mention of the blades now being composites. A few months later near the beginning of this year, a whole slew of information came out about the CJ-1000A ground tests. This has been public now since the spring in Chinese forums but in Google land, you'll find nothing about it. Here is an article about the status of the 3 main turbofans for ARJ-21, C919, CR929.Where did you hear this?
Fyi, this is a Chinese article. To summarize in English, the articles most important points.
- former blades have been replaced with resin based composite blades which will increase performance and fuel consumption
- thrust range 12913-13608kgF has improved to the level of the LEAP-1C
- CJ-1000 prototype to receive air worthiness certificate in 2023