KEYPUBLISH上对于丝带气动的评价

看下来ＫＥＹＰＵＢＬＩＳＨＩＮＧ上的喷子还是很少的。不少人对Ｊ２０表示了祝贺。不过大部分人对于Ｊ２０的气动都不是很看好，认为不如ＰＡＫ　ＦＡ。看得很是让我揪心。不知ＣＤ各位达人对此有什么看法呢？
"Agreed, it has more supersonic potential with engine upgrades then either F-22/T-50, but i think thrust deficit will hold it back for a long time."

No way in hell is it a better high mach performer than the T-50. This is not even debatable. The Chinese paper I linked to discussing the DSI intakes on this things also discusses the sort of performance you should expect from this sort of design. It is optimized for transonic flight, hence the canards. At any speed over mach 1 you will see performance degradation thanks to the intake design they selected. The T-50 on the other hand is all but meant to be a high mach cruiser with absurd escape speeds. It's intakes in no way shape or form hamper high mach performance, and it has no canards instilling a weight penalty and adding drag. All else equal, the T-50 will have a better top speed, and this is not debatable. In fact, all else equal the T-50 should have a significantly higher top speed than the F-22 too.

As for superior stealth, I have to ask -- based on what? The gigantic control surfaces or the utterly conventional rear? There is no eyeballing it. It might well be stealthier than the F-35 and the T-50, but anyone who claims with certainty like this to know is a lying SOB.看下来ＫＥＹＰＵＢＬＩＳＨＩＮＧ上的喷子还是很少的。不少人对Ｊ２０表示了祝贺。不过大部分人对于Ｊ２０的气动都不是很看好，认为不如ＰＡＫ　ＦＡ。看得很是让我揪心。不知ＣＤ各位达人对此有什么看法呢？
"Agreed, it has more supersonic potential with engine upgrades then either F-22/T-50, but i think thrust deficit will hold it back for a long time."

No way in hell is it a better high mach performer than the T-50. This is not even debatable. The Chinese paper I linked to discussing the DSI intakes on this things also discusses the sort of performance you should expect from this sort of design. It is optimized for transonic flight, hence the canards. At any speed over mach 1 you will see performance degradation thanks to the intake design they selected. The T-50 on the other hand is all but meant to be a high mach cruiser with absurd escape speeds. It's intakes in no way shape or form hamper high mach performance, and it has no canards instilling a weight penalty and adding drag. All else equal, the T-50 will have a better top speed, and this is not debatable. In fact, all else equal the T-50 should have a significantly higher top speed than the F-22 too.

As for superior stealth, I have to ask -- based on what? The gigantic control surfaces or the utterly conventional rear? There is no eyeballing it. It might well be stealthier than the F-35 and the T-50, but anyone who claims with certainty like this to know is a lying SOB.