Seems to be from this clip:
Chinese Engine Development
- Thread starter jackbh
- Start date
Seems to be from this clip:
ACAE is said to be currently developing a propofan engine. Posted by SOYO on Weibo.
doesn't this look like CFM Rise ?
but the interesting thing is, this is developed by ACAE a commercial branch of AECC. which also developed CJ series Turbofan Engines.
in May, 2025 ACAE received Series A investment from 12 National capital Groups. didn't disclose the amount but it is said to be the largest ever investment in Aero Engine sector in recent years.
CJ-1000A batch production assembly plant has been completed(seen the tender).
Last edited:
lcloo
Major
Does that mean we will see C919 test flight with CJ-1000A this year?
for sure. flight with CJ-1000A is near.
yeah, I posted this a few weeks ago.
It's quite possible that open fan and prop fan is termed the same in Chinese. Not sure.
Open rotor design is supposedly more efficient. Although, I don't know enough about engines to explain why. But one interesting thing is that you can use hybrid power to motor the rotor, which could further improve fuel efficiency.
They are like MUCH noiser though. Not sure how they will improve that.
Stationary stators are supposedly going to improve on that
turbine physics tells us the larger the bypass ratio the higher the subsonic efficiency. However, when bypass ratio goes too high the engine shroud simply becomes ridiculous and cumbersome dragging the feet on efficiency. So getting rid of the shroud is one possible way to go.