new image that huitong has labelled as WS-15 on his J-20 entry
I thought WS-15 is supposed to feature thrust vectoring nozzle? Can't really tell from this image.
J-20 5th Generation Fighter VII
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I thought WS-15 is supposed to feature thrust vectoring nozzle? Can't really tell from this image.
SinoSoldier
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new image that huitong has labelled as WS-15 on his J-20 entry
Link to original image: Chinese Engine Development
this is a F135
Yes, the F135 is there for comparison's purpose with the diagram.
There's been lots of talk of that Siege, but from a practical stand point, would your roll in a new engine, and complicate that with OVT and the necessary changes to the FCS that would be an absolute requirement??
I mean the J-10C, with OVT that flew at Zhuhai, shows that may not be as large a stretch as I would have previously imagined, but the J-20 flight dynamics are much more complex with its distant coupled canards. It is no doubt a precursor to a J-20 that would be so equipped, but still, it seems like a lot of trouble for a small gain in post stall nose pointing and the acceleration of pitch rate that benefits the Flanker family, but the J-20 no doubt already has a mind numbing pitch rate.
I just don't know if I would complicate the J-20 additionally, for what might be only marginal performance improvements, at the cost of additional weight and complexity, as well as the loss of thrust from the WS-15??
I thought someone said with thrust-vector engines, J20 doesn't have to move its canards as much during flight, minimizing radar reflections
At a minimum it would have jagged nozzles for it reduction.
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Deino, I agree with your worthy opinions.
No doubt it will have serrated nozzles to reduce L/O signature, I'm rather certain that Chengdu has produced a very stealthy aircraft Siege. My thinking is that OVT is very expensive, its relatively heavy as opposed to serrated nozzles alone, and very maintence intensive. In addition there is a significant loss of thrust attributed to the OVT, I can't quantify that?? so?? in any regard, the increased thrust of the WS-15 will increase climb and increase pitch authority in all flight regimes, unless you've pulled the throttles back for decent..
I like OVT, I'm a big fan, and the Flanker and the Raptor will make a believer out of you.
While that is very true Vincent, in all honesty once you are above 400 knots, those canards are very effective, you just apply light pressure fore or aft to pitch up or down rapidly, they are very effective with very slight almost unnoticeable deflection, its not until you start heavy maneuvering that the canards would significantly spike your radar return...
my more practical argument against OVT on the WS-15's installed on the J-20 is that China has until very recently seemed not to interested in OVT until they purchased those SU-35's???, I will confess I was very pleasantly surprised, and more than a littel shocked when the J-10C flew at Zhuhai, I must say I was blown away, so it could happen?? I'm just doubtful that it will??? we shall see I suppose, it will be amazing when Chengdu flies the first J-20 with WS-15.... on that, I hope we can all agree!
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