They pretty much tie a red ribbon or a red knot if you want to call it on everthing new, heck they even have one across the chest of a groom in traditional weddings, perhaps as you mention, to celebrate the induction of a certain cannon.
J-10 Thread IV
- Thread starter Jeff Head
- Start date
A theory for why WS-10 isn't on J-10B/C yet:
AL-31 had a bypass ratio of 0.59.
And for WS-10 it's 0.78?
Large bypass ratio turbo fans will often have superior performance at subsonic speed (as demonstrated by WS-10's ~135-140kN thrust compared to AL-31's ~123kN. But performance will suffer at supersonic speeds compared to low BPR engines.
And the J-10 clearly had high speed high altitude performance in mind with its highly back swept delta-canard. Could it be that they found out that J-10's supersonic performance would suffer if they changed the engine to WS-10 after they tested it? (Which is why we saw the pictures of J-10B/C with WS-10 but nothing after that?)
AL-31 had a bypass ratio of 0.59.
And for WS-10 it's 0.78?
Large bypass ratio turbo fans will often have superior performance at subsonic speed (as demonstrated by WS-10's ~135-140kN thrust compared to AL-31's ~123kN. But performance will suffer at supersonic speeds compared to low BPR engines.
And the J-10 clearly had high speed high altitude performance in mind with its highly back swept delta-canard. Could it be that they found out that J-10's supersonic performance would suffer if they changed the engine to WS-10 after they tested it? (Which is why we saw the pictures of J-10B/C with WS-10 but nothing after that?)
manqiangrexue
Brigadier
Flanker has higher speed, higher altitude though...
Russian flanker or J-11B?
I don't think we have official data regarding J-11B with WS-10, also Flankers have twice the engine..
There simply isn't enough data to work with, which is why it's just a theory. I could be entirely wrong and it's just some other reason.
manqiangrexue
Brigadier
Su-27 and J-11A have higher speed and ceiling than J-10A. Su-35 is cited as lower ceiling, lower speed than those 2 Flankers. Don't have info on more advanced SinoFlankers. But that's not the point. The point is that your theory is that J-10 was designed for high speed, high ceiling with AL-31 and switching it to WS-10X may cause unacceptable loss to this performance. But if true, this unacceptable loss in performance would also translate to Flankers, which have made the switch from AL-31 to WS-10X. So either they felt that in the case of the Flanker, this loss was acceptable (I cannot understand why), or your theory may not hold water. Flankers have twice the engine, but they also need twice the engine.
From the internet. Ranging from 0.8 to 0.66. The most common quoted number seems to be 0.78.
0.57 is in fact not high at all.
The famous GE F110, had a BPR of 0.76 until the lastest F110-GE-132 that reduced it to 0.68, still way higher than 0.57.
You are probably right, it's just a random thought that came up on my mind after seeing a post about thrust curves on CJDBY.
First of all what does DX-1 and SX-1 mean ??
But IMO this is only a highly unrelaible fan-made chart !
Concerning the J-10B, since when has the 124. Brigade received 8 aircraft and even more for the J-10C it does not make any sense to start conversion with so many different units at the same time each getting only 4 aircraft (like here the fro, K24, K9, K15, K12, ... ) also there are no reports about the 1. and 3. Division already having J-10C.
Also for the J-10A, since when does the 130 AR/44. AD have J-10A, and why only 4 ??
And finally since when is any J-20 delivered to the units listed above?
Deino