J-20 5th Gen Fighter Thread VI
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what you posted three weeks ago is from CCTV official channel, it's only Chinese, this one has English subtitle, it's different.
A Caption for the new images :
This image shows an engine that isn't of the AL-31 series. The engine is supposedly an indigenous Chinese engine of the WS-10 series ( WS-10C ?) with a thrust (rumored) to be anywhere between 13.5 to 14 tons (137 kN). The serrated engine nozzles are better suited for stealth. The engine does not have a TVC capability.
The optimal engine that ought to power J-20 in the future (around 2025) would have
- Thrust anywhere from 165 kN to 180 kN
- 3D thrust vectoring
-serrated nozzles for Stealth
-ceramic coatings for IR signature reduction
Source of the information - lt.cjdby.net/forum
Wish the Chengdu folks success!
what is the hexagon shape on the side of the engine intake?
The bigger question is, where's the 3D TVC? Or rather, were 3D TVC to be actually installed on the J-20, if you look at the tail booms, there isn't actually enough space for full yaw on the TVC, not without modifying the nozzle location (further back) or the tailbooms.
Tailless is impling that you use TVC for yaw control instead of traditional control surfaces.
I don’t see how the tailbooms are a problem if they use J-10B style 3D TVC nozzles.
test pilot of J20 first flight, Li Gang, invited to CCTV Voice program to share his test pilot story.
34 years, 13 series, 24 models, he has flown all the fighters in China. including J-20, J-16, J-15, J-11, J-10, L-10, L-9, L-8, etc
this video is his speech with English subtitle
34 years, 13 series, 24 models, he has flown all the fighters in China. including J-20, J-16, J-15, J-11, J-10, L-10, L-9, L-8, etc
this video is his speech with English subtitle
Yeah, I forgot, I was one of the people who first pointed out that the WS-10 TVC had two-section TVC to limit nozzle dealignment from the stealth shape. It seems as though the two-section TVC also helps to keep the exhaust flow within the tailbooms, but you still have proximity issues.
In the F-35's case, with just a conventional tail, the F-35 engine at high speeds and power ends up burning its own horizontal stabilizers. But the WS-15 is expected to be somewhat cooler than the F-35 (about 50-100C difference), and the tailbooms can be modified more easily than the F-35's horizontal stabilizers as it's a non-moving part.
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