Posted by =GT @ CDF : Link-1, Link-2, Link-3 (You have to register the view them though)
Originally from cjdby.com
http://lt.cjdby.net/viewthread.php?tid=1119209&page=1&authorid=395416
big ones are 3648×2736 px:D
(need to register first)
I once thought this would be a good idea, but learning more about how interceptions are done in real life, I just realized that having a big aircraft carrying many missiles is not the way how things are done.
For air superiority numbers can be more important than firepower, a successfull interception is not done by a lone plane , but by many, closing routes, and decreasing the probable paths the target could get, every interceptor has it task to do, engaging or not the target.
Actually numbers was a more important factor than firepower of a design, in every USAF modern air conflict
This can’t be done by a fleet of few mastodontic planes, but a fleet composed by many aircrafts, checking a wealthy balance of numbers/performance, because if you want more performance, numbers are decreased either by readiness ratio, maintenance, cost, or any other factor.
The sky is too big for moveable point defense systems, like a B1-interceptor, of course for very , very long range interceptions (for strategic bombers interceptions) there could not be another way…although the size of the B1 is still too big for such task.
totally agree
IMHO Fifth Gen+ UCAVs ‘hunter and hounds’ will be the future…
however… what if in close future, effective close range laser defence system is small enough for B-1 sized aircraft while still too big/ heavy for fighters?
Not really relevant, I brought it up because he insisted on giving economics lectures for no apparent reason. (but since you asked, an MA is not related to either field)
No offence, but some of your points really doesn’t sound like what a MSc student would say, let alone an engineer…
I’m a business PhD candidate
……………..Yes. I am also an engineer.
May I ask… are you holding a MA or MSc?;)
Here’s the latest flight test.
My unstable one is almost ready too:diablo:
No he probably means what he said. I don’t think conventional CFRP would work in a compressor (it does get quite hot). Ceramic Matrix Composites show a lot of promise in jet engines (though you usually hear about them more in the turbine section).
Would pre-combustion temperature be that high?
one explanation is that the J-20 bays could be quite deep. Chinese weapons are not small, they are big.
and the reason why the J-20 is so long is that its S ducts don’t bend until behind the deeper bay.
or because they had to put a long LERX after canard 😉
IMO Lots of extra weight and complexity for the function of a turbofan
Any chance for hint where to find this?
saw it from here
http://lt.cjdby.net/thread-1082769-1-1.html
and this is from 2007

is the cylinders rotating or fixed?
Interesting solution to say the least.
change the current intake config to an S-Duct would certainly has to change the external geometry. Not a trivial task at this point of the program. bravo to russians experts who has such confidence.
ps. there is this recent “leak” on the chinese press about some university developed a robotic arm for CAC to apply coating inside of J-20’s intake duct? wonder what kind of coating that needs an robotic arm.
and a paper of the development of the canopy:D
The other possibility is that the nozzle petal is made of a material that itself is silver in appearance.
polished surface give out much lower IR radiation
You might be correct … but maybe not !
The modst important words are “… have most likely … … should have been detected … and leaked to media” !
In neither case You could be sure that they actualy noticed one, that they
a) actually got the correct time and noticed it
b) and if, that they leaked it to the media.Once again … only “MAYBE” !!
Deino
also, don’t think any spy sate is geostationary, thus it’s sooo easy to get a time table of every pass-by, an to avoid detection.
Thanks for the pics
Checked some Chinese forums, some said their friend in 132 are still on holiday currently and weather in Chengdu isn’t that good recently
No … to admit, we have nothing !!!
All we have is a lot of pictures showing two different engine – esp. afterburner – details and some minor changes on the airframe. But to admit besides some reports NO picture of two J-20.
Regarding the engines, there are endless debates around:
– the number of pedals (18 in the WS-10A / 16 on the AL-31F/FN and strangely 16 on that strange engine)
– the overall size,
– the inner afterburner details (if visible at all)we have some reports from China (including a friend of mine at AVIC) telling me that this is definitly a new Chinese engine … but also other reports about a special treated AL-31F/FN.
IMO one thing often ommitted is the discussion wether an F or FN is built in. IMO that’s not unimportant but also IMO easy to answer, since the F has all the gear-boxes on to – like on the early WS-10 we’ve seen … the FN in contrast has them on the bottom as seen on all (?) Western types and also the J-10. As such I think the most likely option at least on the pictures where we clearly see AL-31 this is most likely a FN-model, since they are available at CAC and the latest WS-10A has all the gear-boxes on the bottom.
Otherwise I really don’t know what to think … this long break between the first flight and now … is at least strange !
Deino
Chinese New Year may be?
Chinese are generally hard working but I doubt they will work through Chinese New Year holidays…
Also J-20 might be in Yanliang already…