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Witcha

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Viewing 15 posts - 646 through 660 (of 1,232 total)
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  • in reply to: The PAK-FA Saga Episode XVI #2321536
    Witcha
    Participant

    Any news of what role HAL is going to play in this program? Are they going to take home some solid Russian technology back home or HAL will be reduced to simply a fund contributer?

    Sadly, they’ve missed their boat with regards the PAK-FA by not concluding negotiations until the prototype was already flying. The T-50’s final design was locked without their input, and thanks to differences of opinion India’s involvement will not be in the PAK-FA but its Indianised 2-seat derivative, the FGFA.

    In other words HAL will be co-developing only the export version of the T-50. The one being tested right now will be mostly Russian.

    in reply to: Navies news from around the world -III #2008742
    Witcha
    Participant

    They may acquire the F-35B at some point. And there’s the ATD-X programme which may very well evolve STOVL capability down the line.

    in reply to: Russian Navy News & Discussion, Part III #2008746
    Witcha
    Participant

    That’s one of the projects for the recent OAK corvet competition. Done by an amateur.
    The weapons are 2×2 57mm (non-existant), milimeter range rotating APAR for FC, short range SAM is Tor, long range is Redut + any othe rmissile which fits in the bigger VL module.

    So where will the rotating APAR come from? I’m assuming the amateurs won’t be developing one themselves. Or is it Furke?

    in reply to: Nimrod R1 earns a reprieve #2321543
    Witcha
    Participant

    Given their age and the the obsolescence of their systems wouldn’t they be more expensive to retain in service than the MRA4s?

    in reply to: Russian Aviation News – Part the Fourth #2321545
    Witcha
    Participant

    Anyone know what’s going on with Russia and SAR/MPA? Is the plan announced a couple years back to acquire Beriev A-42s to replace Il-38s and Be-12s dead or what? =/

    Like the many other ‘planned’ acquisitions it’s probably been put on hold due to funding issues. In any case there’s no hurry for getting new MPAs; the Il-38s and Tu-142s have been upgraded and had their lives extended till 2020+. There are other things that have a greater priority for new purchases.

    in reply to: Indian Navy – News & Discussion – IV #2008884
    Witcha
    Participant

    There should be second one to cover aft sector. But will not.

    There seems to be just enough clearance in that drawing. Anyway, it’s a rotating radar so it’s pointless to place it on a stationary position that only covers the front half of the ship.

    in reply to: Indian Navy – News & Discussion – IV #2008983
    Witcha
    Participant

    Pardon the ignorance , but from pictures of the Kuznetsov and earlier Gorshkov , it seems that those ships had huge fixed planar array radars mounted in front and on both sides of the superstructure thus providing a wide field of view..
    Kuz..
    http://www.freewebs.com/jeffhead/worldwideaircraftcarriers/kuznetsov4.jpg
    Gorsh..
    http://i43.tinypic.com/s2fbf8.jpg

    The Podverezovik otoh seems fixed nonrotable.Wouldnt that be a problem?
    http://lh5.ggpht.com/_S1Gu2hX9S6c/S1euECKtUVI/AAAAAAAAQ0w/EFUR_rHFWhU/gorshkov_01.jpg

    The fixed phased array radar is the Mars-Passat(“Sky Watch”) which was ultimately a failure(the arrays on Kuznetsov are not functional) and therefore not an option for Vikramaditya.

    http://www.harpoondatabases.com/Encyclopedia/Entry1064.aspx

    The Podberezovik-ET1 radar rotates at 6/12rpm. It’s a pretty capable replacement.

    in reply to: Indian Navy – News & Discussion – IV #2008993
    Witcha
    Participant

    can you explain the bold underlined part in detail regarding the problem with Kuznetsov and the likely problem for Vikramaditya?

    It would be best to read the articles in these links, one of them courtesy of snake65. Google translate works pretty well.

    http://www.zavtra.ru/cgi/veil/data/zavtra/07/735/52.html
    http://www.linago.hotmail.ru/text/98.htm

    (Translated)
    You can not imagine parking the aircraft carrier in the north. Aircraft carrier – it’s tens of thousands of tons of steel, hundreds of thousands of square feet of decks, cabins, sheds, compartments. To heat it all on their own in the northern winter is simply unreal! There’s a fourth-fifth deck stepped, foot of water due to sweating. He’s all frozen. One time in my life, “Kuznetsov” is more or less warmed up – in the Mediterranean Sea. It was then he was a real handsome. That’s when he was a real handsome. And since he is constantly with frozen portholes. Carrier should not spend the winter in the north. Carrier should not spend the winter in the north. He is killed. He is killed.

    (Translated)
    The most terrible problem is not marriage generates plants. Worst problems generate errors designers. Nobody can understand: what climate zone engineered TARK? According to the results of exploitation, he did not intended for the north. According to the results of exploitation, he did not intended for the north. I would like to answer this question now surviving designer TARK – AB Maureen (Nevsky PKB). I would like to answer this question now surviving designer TARK – AB Maureen (Nevsky PKB).

    In fact: the ship poor insulation and poor heating system. In fact: the ship poor insulation and poor heating system. For this reason, winter misted windows, condensation on the walls poured streams, the crew freezes [2]. Winter 1998/1999 years. even frozen pipes in one of the main boilers. even frozen pipes in one of the main boilers. The fact that the external surface of any aircraft carrier is huge, a hundred times more than the area of ​​the destroyer. The more cooling surface, the more difficult to heat the internal volume vehicle. Steel carrier mass (length 305 m) in winter simply freezes for heating the vessel to a lot of energy and a powerful heat insulation – with physics useless to argue!

    Foreign shipbuilders are widely used high-quality insulation from mineral (basalt) cotton coated with aluminum foil and reinforced with fiberglass mesh. Northern Fleet ships is desirable to have such a high quality thermal insulation. Apparently the “Kuznetsov” Isolation quite bad.

    In order to not freeze in winter windows should be used triple-glazed windows. Yes, dear obtained if their intelligence design for an aircraft carrier based in the north…

    in reply to: The PAK-FA Saga Episode XVI #2322332
    Witcha
    Participant

    Those ‘bands’ on the edges of the wings are common to both the F/A-22 and the F-35. They haven’t been seen on the T-50 so far. I wonder if these are the RAM coatings designed to conceal the various antennae ends.

    in reply to: Russian Aviation News – Part the Fourth #2322337
    Witcha
    Participant

    Why not the Bars-29 or Zhuk-A? These are new aircraft, not MLUs. They should have a little future-proofing wrt avionics.

    in reply to: Indian AF News and Discussion Part 16. #2322341
    Witcha
    Participant

    IMO what the DRDO/DPSU/Ordinance Factories need is a policy akin to Russia’s and China’s: Compete and earn your own funding, perform or perish(or look for export revenues). That’d go a long way in helping to meet deadlines.

    Detractors say there’s no funding for parallel R & D institutions, but that makes little sense given the vast amounds sanctioned on foreign partnerships like the FGFA or even wholesale purchases of foreign components(RD-33K, AL-55), a fraction of which would suffice to, say, finance a second R & D institute for jet engines.

    in reply to: Indian Navy – News & Discussion – IV #2009011
    Witcha
    Participant

    Thanks , but need some clarification.They would surely do the sea trials in Russia because if they do it after it comes to India , and something goes wrong , are they again going to haul it to Severodvinsk?

    Generally the manufacturer does the sea trials and the navy does the acceptance trials.

    What I read was that the trials had been ‘split up’ to save time. Probably the tropical weather trials will mostly be performed in India. The ship has a one-year warranty from Sevmash for any problems. After that it’ll spend its entire service life being repaired by Indian shipyards(The Indian Navy has purchased a complete set of technical documentation for about $80 mil).

    Snake65 , for a long time it was thought those beams were used for construction , good to see Podberezovik-ET1 on Vikram.

    The position though seems unusual to have the radar out there ,its a long range air search radar and should ideally get a favorable height and unobstructed view for 360 * search , it seems though it would cover just the frontal arc 180* while the other half will be blind to this radar , unless they have another similar radar at the back.

    I don’t know if a few dozen metres of superstructure represents that much of an obstacle though. Anyway, the Podberezovik antenna has been mounted on the front since the earliest publicly displayed models, so I don’t think there’ll be any problems.

    The tall beam at the centre seen in earlier photos(with the Indian flag) was actually for mounting the Rezistor-K4(‘Cake Stand’) TACAN. That’s the massive cylinder under the Fregat.

    in reply to: Indian AF News and Discussion Part 16. #2322720
    Witcha
    Participant

    do you mean like my note of wishing for new leadership for the stealth project?

    Working with japan comment, wont ever happen ITAR will make sure of that one way or another, but it was a wish list item….

    Isn’t ITAR related to American import/export of dual-use technology? How does that work here, given no US firms are involved in ATD-X yet?

    in reply to: Indian AF News and Discussion Part 16. #2322908
    Witcha
    Participant

    I know there are legal hurdles regarding internation defence cooperation in Japan, but they’ve been waived/bypassed in the past for joint programs with the US, haven’t they? And I said ‘Ideally’.

    in reply to: PLAN News, Photos and Speculation #3 #2009092
    Witcha
    Participant

    Say, does anybody have any idea what has been circled in the pic below? What does the description say?

    http://img268.imageshack.us/img268/5674/varyagmay185.jpg

Viewing 15 posts - 646 through 660 (of 1,232 total)