1. The presentation seems like a standard trade show talk.
If you ever bump into him say hi to him for me. :p
He was the right person at right time in 611. He works too hard. resilient as hell to carry through the project as he did on J-10.
I am surprised CIA hasn’t tried to kidnap him or assasinate him at these trade shows… prob would set the chinese effort back 5 years. 🙂
2. “quadruplex digital ” etc describes the hardware side of things. what I am talking about is the the law. in JF-17 the lateral side is prob direct signal actuation, in the directional side prob just a yaw damper. J-10 prob is all digital.
imho, all digital is the way to go for FC-1/JF-17. you have most of the same hardware anyways it is not more difficult to host the extra functions in the hardware you already have. having a mixed system on some level actually cost complexity and headache.
anyways, the hw stuff on JF-17 should have some heritage from lear-siegler stuff. 🙂
3. “Bend and Twist”… prob Diahedral of the wing and wing twist. wings are usually designed with twist as a function of span… usually the more you go out from the wing root, the wing chord has more a nose down angle.
“Differential Horizontal Tail”: elevarons. at high speed ailerons due to aeroelastic effects their effectiveness drop to nothing. elevator in the back is scheduled in to move differentially to generate rolling moment.
4. He should stick to chinese and force all the journalist scramble to learn chinese. :p
i.e., as always, thanks for the insightful reply, always a pleasure reading your informative posts 🙂
I think its always been stated that a mixed digital/analogue FBW setup in the JF-17 was used to reduce costs, although as you’ve stated, given the similarity and precedent of the J-10, it wouldn’t have been too difficult and perhaps easier to simply use an all digital system. Perhaps a possible upgrade in future blocks?
Regarding the differential tail, I assumed it meant differential movement of the elevators, but wasn’t entirely sure as it’s quite surprising to see this feature on something “low cost” such as the JF-17.
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