I thought you were comparing WS10 with AL-30F?
I hope You do realize that WS10 and WS10A look completely different.
Look at the front, the WS10 has front nod green color whereas the AL-30F has metalic color.
You think the patina on an old engine vs that of a showroom model makes the difference? Ah, waste of time trying to explain it to you.
You think PLA purposely painted the front of the AL-31F with green color?
How about The big ole rectangle box on the upper right hand of AL-31F?
WS10 doesn't have one.
It seems to have one on the picture though.
Actually as I was reading through this thread, I really find it strange, why are we arguing on what WS-10A is based on or a clone of whatever engine... instead of discussing its spec, progress and capability.
I mean, so what if it really is a direct copy of some Russian, Western and whatever engine, or was base on Russian, Western and whatever engine, AS LONG AS IT IS FUNCTIONAL, SERVE ITS FUNCTION WELL, AND COULD BE MASS PRODUCED.
Actually I believe we do not need to care whether EU, France, Russia, US or whatever nations had designed and build their own engine and China didn't, I mean, SO WHAT? China had their turbofan now, and thats it... so get a grip, China is up there now.
Its vital to have its own technology, for you cannot rely forever on others technology. If not you will always be many years behind other nations.
Its vital to have its own technology, for you cannot rely forever on others technology. If not you will always be many years behind other nations.
It's all about having a good base. Even though the US got most of its late 40s rocket technology from Germany didn't mean they were completely mind-blown and had no idea how to use the technology. Now, if you don't improve at all on the technology and rely completely on 100% cloning, I'd say you didn't handle the technology very well. If you clone 50-75% and thereabouts, I'd rather say you understand the technology and feel capable to improve on it, but that the original design is quite ingenious. (This is really off-topic, but let's check out the late WW2 Germans who "copied" the T-34 and made the Panther, they edited a lot of it and ended up with a tank that lost all the advantages the T-34 had). Using a good design means you are learning from mistakes others made, instead of ignoring them completely and doing them yourselves.
Copying today does not mean copying tomorrow. Copying today means experience of a superior design tomorrow. Which means your $10m R&D investment today is not worth the same as a $10m R&D investment tomorrow. It's called value-adding, folks..