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Witcha

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Viewing 15 posts - 406 through 420 (of 1,232 total)
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  • in reply to: RAN Selection of MH-60R #2029807
    Witcha
    Participant

    BTW,

    Is the planned mine hunting suite going to be standard issue for the MH-60 or a specific version?

    in reply to: Hot Dog Indian AF News and Discussion Part 17 #2322367
    Witcha
    Participant

    Apparently the UAE or France did approach India via diplomatic channels regarding possible sale of the 60 Mirage-2000-9s. And, India has not shown any interest in these fighters. So, now on we can probably rule out India as a possible customer for the UAE’s Mirages..

    link to article

    I’m guessing the offer price + cost of standardisation with Indian upgraded Mirages was too high, because otherwise I can’t see a sane reason to turn them down. They may be used planes, but they’d easily have another 10 years of service life left and would be a good stopgap replacement for our ancient MiGs till the MMRCAs and Tejas finally arrive in force.

    in reply to: PLAN News, Photos and Speculation #3 #2029855
    Witcha
    Participant

    Till now reports about Chinese activity on Myanmar’s Coco Islands have generally been rubbished. But the latest has some photograpic evidence attached.

    http://livefist.blogspot.com/2011/11/chinas-airbase-expands-on-coco-island.html

    http://1.bp.blogspot.com/-QJEBrdnH8Cg/TsVaUIGB04I/AAAAAAAAOJE/UHb7fjI3-Us/s400/coco%2Bchina.jpg

    If that satellite pic really shows the Coco Islands the infrastructure down there really proves something is up.

    in reply to: Russian Navy Thread #2029867
    Witcha
    Participant

    http://www.flot.com/news/navy/?ELEMENT_ID=98070

    Admiralty Shipyard today laid down second project 0636.3 Kilo submarine named “Rostov-on-Don” for BSF.

    At this rate the Ladas are going into limbo. How many will the Russian Navy want when it’s already chock full of Kilos?

    in reply to: why doesnt europe make their own F-35? #2323091
    Witcha
    Participant

    As others have said, in short the Europeans CAN but they can’t afford to.

    In many aspects the Typhoon and Rafale can already be considered ‘Generation 4.9’ fighters. All they lack is stealth.

    in reply to: PAK FA episodeⅩⅧ #2323095
    Witcha
    Participant

    Witcha, are you sure Irbis is a derivative of Bars? AfaIk, Irbis has a totally new ‘back-end’, and even the Bars stage 1 antenna upgrade for the Super 30 bears little resemblance to the Irbis array.

    The processing equipment may be different but the antenna, at the least, seems to be derived from the Bars. Various articles around the net use the terms ‘derivative’, ‘evolution’ and ‘follow-on’, but I remember reading a Russian article several years ago back when the Irbis was under development; An NIIP designer stated something to the effect of how they needed a wider area of coverage on the ‘Bars’ type antenna and so created the mechanical gimbal system as an alternative to increasing the size.

    in reply to: PAK FA episodeⅩⅧ #2323224
    Witcha
    Participant

    OK, so the IRBIS array is a little smaller and less weight vs BARS array. And the IRBIS back end(all connected prossessing boxes) are newer, smaller and lighter.

    So the IRBIS array are made up of gallium arsenide then?

    No idea. Maybe it uses some GaAs/GaN elements, but the antenna design is essentially the same as the Bars PESA radar(Iribis is a derivative of Bars). I assume it just uses ferrite/LED phase shifters, no GaAs.

    in reply to: Russian Aviation thread, part V #2323280
    Witcha
    Participant

    CEO of irkut has said that a fighter version of yak-130 will be createt with these features
    -upgrating engines with afterburners cause to go supersonic
    -a radar in nose
    -a targeting pod
    i have read this in arms -tass

    Radar and targeting pod can be done since the Yak-130’s already been designed to carry real weapons and avionics if desired, but wouldn’t the conversion into a supersonic plane require new stress tests and airframe modifications?

    in reply to: PAK FA episodeⅩⅧ #2323283
    Witcha
    Participant

    How about the N035 Irbis radar, the Gallium nitride are not constricted to any AESA arrays, it should get equally pros on a new PESA array.

    “The Irbis multifunctional radar employs a 90cm passive phased array antenna mounted on a hydraulic actuator”

    Even with those Hydraluic actuators, the N035 is reported less weight vs the BARS radar..
    How can this be:confused:
    Are Tikhomirov NIIP using any GaAs modules??

    I read that was due to lighter onboard processing equipment compared to the Bars.

    in reply to: PAK FA episodeⅩⅧ #2323285
    Witcha
    Participant

    Interesting.
    Can you pls provide some info/readup on the tech subject?

    Edit:
    What would be the advantage over current Russian Radar tech?
    Less power consumption, weight or faster signal prossessing etc..?

    I mostly got it from here(the original link no longer shows the relevant page, though).

    http://igorrgroup.blogspot.com/2011/06/russia-india-business-dialog.html

    Other articles are found across the web regarding Russian interest in GaN for various applications.

    Others above have already taken the trouble of illustrating the benefts of GaN vs GaAs. With GaN-based architecture an AESA can potentially have twice or thrice as many T/R modules for the same size.:)

    in reply to: PAK FA episodeⅩⅧ #2323935
    Witcha
    Participant

    I’ve been reading reports and rumours about Russia researching Gallium Nitride technology and manufacturing GaN chips in participation with an Indian firm. Are these meant for the PAK-FA’s radar or is it just general R&D to develop GaN-based hardware?

    in reply to: Russian Navy Thread #2029894
    Witcha
    Participant

    http://rusnavy.com/news/navy/index.php?ELEMENT_ID=13653

    Ukraine May Bump Up Lease Payment for Black Sea Fleet

    I wonder if this is Ukraine’s reply for the Russian Navy’s unwillingness to get its ships repaired in Ukraine…

    in reply to: type 26 frigate #2029897
    Witcha
    Participant

    Do I see a rotary UAV of some sort in the smaller ‘side’ hangar?

    And there are definitely more than 8 VLS cells in that video. Assuming CAMM will be quad-packed it could carry upto 64 of them.

    Together with the 8 SSM launchers and torpedo tubes I don’t see what people are complaining about. Tomahawks are already carried by the Astutes; how many navies put long-range LACMs on their surface ships anyway?

    in reply to: Hot Dog Indian AF News and Discussion Part 17 #2323974
    Witcha
    Participant

    whats the cost of the TEjas so far? 30-40 mill?

    also HAL considered making the two seat derivative into an advance trainer in the veins of the Original Korean T-50?

    Doesn’t the Hawk already fulfil that role?

    in reply to: Hot Dog Indian AF News and Discussion Part 17 #2324208
    Witcha
    Participant

    AFAIK Americans won’t even allow its companies to reply to RFI if the product is not on offer. As mentioned in the recent Dubai Air Show reports, no F 35 models were shown because the plane was NOT on offer.

    Denying Arrow, ELTA-2052 etc. is because Americans are offering similar systems themselves. they obviously don’t want the Israelis to get a contract for things developed with U.S money and tech. And India is always being offered higher tech than what is on offer for Pakistan.

    AEGIS was on offer for example.

    Hmm… still.. The RFI is the earliest stage of procurement: there isn’t even a stated intent to buy that particular product. And thus far the US has only offered India things which already have contemporaries elsewhere. Like offering AEGIS for which Russian(Rif-M) and European(Aster-30) options were also available. Previously it had offered India the Patriot-2 when India asked for the PAC-3, and the PAC-3 when India previously expressed interest in a long range SAM/ABM system. Not something like THAAD…

    And keep in mind that there are many voices in the US that could derail any such sale by pointing out MTCR regulations(like for Arrow-2) or geopolitical considerations(Indian ABM capability causing a missile arms race with Pakistan and China).

Viewing 15 posts - 406 through 420 (of 1,232 total)