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joey

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  • in reply to: Indian Missile news and speculations #1802945
    joey
    Participant

    Well the fact that India is entertaining their proposal, in the case of F-18, F-16 and P-8s shows that they are intrested.

    FYI the newspapers are on payroll to write whatever :rolleyes:
    India is interested in F16 block 70 which isnt even build? :rolleyes:

    hornet – yes a part of RFP.
    P8 yes.

    Well im just speculating what these ‘officials’ have had to say, if you have hard facts to say India has rejected PAC-3s, and was rejected on the Arrow-2 then fair enoughy, show them.

    India: Powell to Tell India He Opposes Arrow Sale
    U.S. Secretary of State Colin Powell is expected to tell Indian officials later this week that he opposes Indian efforts to import the Israeli Arrow missile defense system, the Washington Post reported today (see GSN, May 16). Powell has said he plans to visit India and Pakistan to discuss regional tensions (see GSN, July 10).

    Israel uses Arrow to defend against short-range and medium-range ballistic missiles. Because Israel developed the system jointly with the United States, Israeli officials must obtain U.S. approval to sell it to other countries such as India and Turkey, according to the Post.

    The Bush administration has not yet decided whether to approve the sale to India, but high-level officials are considering the proposal, a Pentagon official said. The administration plans to inform Israel of its decision “fairly soon,” a senior State Department official said.

    Department officials oppose the proposed sale out of concern that India’s acquisition of the system could increase tensions in South Asia, where Pakistan and India in recent months raised international concern that they might go to war.

    “We have concerns about the introduction of more missiles into this area,” the State Department official said. “It could be destabilizing.”

    “Were India to proceed with an investment in missile defense, one thing is certain,” said Karl Inderfurth, former assistant secretary of state. “Pakistan will respond in some fashion, either by increasing its offensive capability to counter such a defensive shield or by pursuing its own form of missile defense wherever they could obtain it. That is an iron law of the action-reaction cycle in South Asia.”

    State Department officials are also concerned that the sale might harm U.S. efforts to prevent missile proliferation, according to the Post. They worry that it would send the wrong message to Russia, China and other weapons exporters at the same time that the Bush administration has made nonproliferation a priority.

    Another potential concern is that selling the Arrow system might violate the 1987 Missile Technology Control Regime, of which the United States is a member (see GSN, July 10).

    “We have some issues we need to sort through, particularly how the sale relates to the MTCR. That’s an open question,” the Pentagon official said.

    Sale Supporters

    Several Pentagon officials and others have said they support approval of the sale. Some said they do so out of general support for Israel, which could make a good profit, and some have argued that allowing the sale would be in line with U.S. President George W. Bush’s advocacy of missile defense and efforts to cooperate on missile defense with other countries, the Post reported.

    “We certainly understand India’s interest in missile defense,” the Pentagon official said.

    Proponents of the sale to India have also said it could improve U.S.-Indian relations and reward India for backing down from a confrontation with Pakistan (see GSN, June 24).
    http://www.nti.org/d_newswire/issues/thisweek/2002_7_26_misd.html#2

    This is one report i lost the “pantagon” report of REJECTING THE SALES OUTRIGHT OF ARROW 2.

    About Pac 3 – that thing costs more than its performance 😀
    Afetr Indias own ABM test there was hundreds of reports of defence officials saying – We rejected Pac 3

    Citing an announcement by defense officials at a press conference, India’s The Statesman reports that India could establish an air and missile defense shield for a 200 square kilometer area within five or six years, quoting defense scientists said. Such a system could reportedly be duplicated to protect “big cities and strategic facilities like nuclear reactors and space launching sites against incoming missiles.” The interceptor is said to be a surface-to-air missile with a range of 80-85 km, and another interceptor with a range of about 20 km. The Akash SAM is mentioned as a possible interceptor for such a system; “Meanwhile, the Akash will have some anti-missile system capabilities.”

    As for the radars for such a system, Mr M. Natarajan, DRDO chief and scientific advisor to the defense minister, said they might include a phased-array radar placed on an executive jet, such as the Brazilian Embrear. India has already purchased from Israel the Phalcon aircraft-mounted radar system
    link (http://www.missilethreat.com/news/200502111357.html)

    India not impressed with the PAC-3 that it was offered
    India is not impressed with the PAC-3 missile unit offered with the two-tier US anti-missile defence system, on the grounds that it is slow for the very low reaction period in the sub-continent, and therefore, the Pentagon will demonstrate more advanced technologies when defence minister Pranab Mukherjee visits the country.

    Besides more advanced units than PAC-3, the US is offering mid-air jamming systems

    link (http://www.newsinsight.net/nati2.asp?recno=3267&ctg=)

    Regarding MCTR, doesnt that apply to offensive missile systems and not defensive systems?

    Arrow 2 is a MCTR Class 1 missile.

    in reply to: AERO INDIA 2007 #2514109
    joey
    Participant

    I am not sure if it is a research Lab or manufacturing foundry. i has hardly $25m in assets. u need $5B for 45nm process foundry and alteast $1b for 65 to 90nm.

    Its a r&d and manufacturing foundry, most stuff you see there is done by their own r&d.
    61% growth this year in net sales.

    About fabrication labs i dont exactly know what it has, but DRDO fabs are handled by SCIL. [normally]

    Another thing you need to know is what r&d with quality costs here 1/20th of what it costs in US.

    But one thing is “for sure” they have developed quite lot of TR modules and supplying them as well.

    It has also recieved 30% offset of the Radar deal from israel by IAF from GOI.

    in reply to: Indian Missile news and speculations #1802950
    joey
    Participant

    These are ridiculous articles (India is buying hornet/f16/p8/LCS/Aegis/Pac 3 :rolleyes: :rolleyes: ) what else is left?

    WE HAVE DENIED PAC 3 long ago FOR ITS NON SUITABILITY WITH OUR INTEREST —- We asked for Arrow 2 but was denied – somehow US is not too keen to break MCTR at this juncture, because they knows the moment they does they’ll see kh-55 in Iran :dev2:

    in reply to: AERO INDIA 2007 #2514380
    joey
    Participant

    What do ya know, the DRDO AEW&C is an AESA after all.

    http://media.bharat-rakshak.com/aero/main.php?g2_itemId=6178

    The info board doesn’t mention anything about any nose mounted sensors though.

    Indeed its an AESA radar, DRDO has already developed S band AESA.

    Not only that from Aero India, Astraa Microwave a Indian company has developed almost all (except 2 bands whic are under dev) AESA band TR modules and as per the guy, “have started delivering them to govt organisations” — for “unnamed” reason :diablo:

    Check their site for the modules,

    http://www.astramwp.com/products/trmodules.html

    L-BAND T/R MODULE

    S-BAND T/R MODULE

    C-BAND T/R MODULE

    Ku-BAND T/R MODULE

    VHF T/R MODULE

    X-BAND T/R MODULE

    in reply to: AERO INDIA 2007 #2514393
    joey
    Participant

    err didnt the LCA got a DSP upgrade already from 486 to some sharc or whatever?

    asyways guys how wing loading effects the turn rate?
    also something which peoples normally ommit is SET, specific energy of turn which is defined by the energy required to overcome the drag per unit mass per turn.

    in reply to: AERO INDIA 2007 #2514785
    joey
    Participant

    I’ll just say again what I’ve been told by the peoples who was been there done that.

    When i was present one of chief among 3 gius who was present in the LCa PV3 official first flight video was present too.

    Summary,

    “Tejas in its flight envelope and with its weight does more or less everything a Canarded Tejas would.that is why Canards are avoided.”

    Lets wait for everything to complete and it reach FOC.

    anyways star49 are you sure about the mach 1.6 number?
    afaik its 1.8 isnt it?

    about LCa’s computer, i suppose your talking about the central DSP? it has already got upgrade, something tiger sharc it is called or whatever?

    in reply to: AERO INDIA 2007 #2514807
    joey
    Participant

    Some breadthtaking LCA pictures….

    http://media.bharat-rakshak.com/aero/main.php?g2_itemId=7040

    I was in the display and i swear when it was flying even the visitors was looking at the sky.

    The agility was simply amazing….

    A pic of the Turns that it made in a display is also there as a paper presentation.

    in reply to: AERO INDIA 2007 #2514986
    joey
    Participant

    robban dont you think you should reply to shalav?
    Wolverine just putted up a Jiest of thing, It was shalav who replied to you, so i’m waiting for your reply there.

    I’ll say only one sentence,

    Tejas in its flight envelope and with its weight does more or less everything a Canarded Tejas would.that is why Canards are avoided.

    The more turn rat explains all.

    If your so proficient, why dont you simply put up the calculation infront of us?

    in reply to: Indian Missile news and speculations #1802994
    joey
    Participant

    not really, India has long asked for Arrow 2 which was denied due to MCTR concerns from US as quite some thing in Arrow 2 comes from US (IR seeker comes to mind), so I’m sure this interest was long there and after so much investment in own ABM we would go for it.

    highly unlikely.

    in reply to: AERO INDIA 2007 #2515726
    joey
    Participant

    Shalav kindly check your PM 🙂

    in reply to: AERO INDIA 2007 #2515759
    joey
    Participant

    tinwing you surely could have posted that in a bit “less” font.
    noone really started comparing differences with chinas AEW as of now, as we all know this havent yet taken skies yet.

    in reply to: AERO INDIA 2007 #2516085
    joey
    Participant

    LCA full cockpit mockup, looks amazing

    It is set to get upgrades of a Bracketless HUD which is under developement.

    http://img63.imageshack.us/img63/8937/image002nd8.jpg

    btw, heard the processors of LCA are already done upgraded :diablo:

    in reply to: PAK-FA image leak at Aero India '07 (?) #2516291
    joey
    Participant

    Ough, how dissapointing. Its Stavatti SM-36 Stalma 🙁

    However thanks for your effort Stealth Spy 😉

    😮 😮 😮 😮 🙁 :p :p :p :p

    thaks for your effort though stealth spy, but i feel like i got owned by that magazines hope.

    waitin for MCA 😎 though as stated by many.

    in reply to: AERO INDIA 2007 #2516297
    joey
    Participant

    Robban,

    Here are some reasons how instantaneous turn rate is affected.

    1. Velocity
    2. Weight
    3. Wing loading
    4. Altitude

    The lower the velocity the faster the turn rate. This is observable even when one drives ones car. The slower it is the quicker it will turn.

    Wing loading effects how quickly the aircraft can turn.

    Weight effects corner velocity.

    Altitude = air density and air pressure, which in turn effect the lift:drag ratio, which in turn effect corner velocity, which directly effects Instantaneous Turn Rate (ITR).

    Corner velocity is the minimum velocity at which the maximum g rate can be attained. This is when the aircraft is the most manoeuvreable.

    Anyone who makes a statement about turn rates should also be able to state the conditions under which such a manoeuvre is being observed. Further if you want to compare 2 airframes then you should be able to state that the results are based on similar conditions. As conditions change so will the observed results.

    Most times, people forget to evaluate the conditions under which such comparisons are made. Such comparisons are a waste of time.

    This is the reason I put together an excel worksheet. BTW I am not an expert, simply someone who put together formulas which are available in the public domain in one convenient worksheet.

    If you want to compare the Gripen and the Tejas, I am willing to listen to your figures and debate them mathematically. But if you do not want to be dismissed as someone simply repeating marketing blurbs you should state conditions under which such results were observed. Without this your statements about turn rates hold no water.

    In the meantime I stand by what Joey wrote up-thread, except to add the turn rates quoted are ITR and not sustained turn rates (relevant corner velocities as also other conditions are also provided in the same quote).

    Very informative post shalav, I’m looking forward a comprehensive Airframe comparison if possible.

    How the figures will vary with IN20 engines?

    in reply to: AERO INDIA 2007 #2516310
    joey
    Participant

    Yes, amongst many other things.

    Robban your not getting things here, seems like you know more then the LCA designers?

    Check my post, The altitude at which LCA does the AOA attacks, a canard delta can do the same in that altitude, fighters of its class in its flight envelope.that is why no canards were needed.
    The tail of LCA is a bit long too and is “full composite”.

    Will the Gripen C/D get the engine upograde or the E/F versions?
    If E/F versions then the payload is also increasing….

    and about surface of LCA, give me a break LCA uses more composites than Gripen does, not to forget we are exporting composites these days.

    tell me do you honestly believe F22 surface is that sleek and doesnt has any rivetts? :diablo: or say Ef’s surface?

    Is better surface defines you according to shineness and glosiness? 😉

Viewing 15 posts - 376 through 390 (of 675 total)