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starikki

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Viewing 15 posts - 91 through 105 (of 222 total)
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  • in reply to: J-20 Black Eagle – Part 4 #2359904
    starikki
    Participant

    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)

    in reply to: B-1 Bomber with AAMs (Missile Mothership) Rand concept #2317051
    starikki
    Participant

    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?

    in reply to: B-1 Bomber with AAMs (Missile Mothership) Rand concept #2317922
    starikki
    Participant

    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…

    in reply to: B-1 Bomber with AAMs (Missile Mothership) Rand concept #2318300
    starikki
    Participant

    I’m a business PhD candidate
    ……………..

    Yes. I am also an engineer.

    May I ask… are you holding a MA or MSc?;)

    in reply to: J-20 Black Eagle – Part 4 #2323857
    starikki
    Participant

    Here’s the latest flight test.

    http://v.youku.com/v_show/id_XMjQ4NDY5MTA0.html

    My unstable one is almost ready too:diablo:

    in reply to: The PAK-FA Saga Episode XVI #2323982
    starikki
    Participant

    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?

    in reply to: J-20 Black Eagle – Part 4 #2324775
    starikki
    Participant

    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 😉

    in reply to: Those mothballed RR Pegasi… #2325547
    starikki
    Participant

    IMO Lots of extra weight and complexity for the function of a turbofan

    in reply to: The PAK-FA Saga Episode XVI #2330787
    starikki
    Participant

    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

    http://img.cjdby.com/attachments_cd/month_1103/11030221358969cf2de6fe90c1.jpg

    in reply to: The PAK-FA Saga Episode XVI #2331213
    starikki
    Participant

    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

    in reply to: PLAAF Thread 15 #2332812
    starikki
    Participant
    in reply to: J-20 Black Eagle – Part 4 #2342258
    starikki
    Participant

    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

    in reply to: J-20 Black Eagle – Part 4 #2343566
    starikki
    Participant

    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.

    in reply to: J-20 Black Eagle – Part 4 #2344575
    starikki
    Participant

    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

    in reply to: J-20 Black Eagle – Part 4 #2344633
    starikki
    Participant

    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…

Viewing 15 posts - 91 through 105 (of 222 total)