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Viewing 15 posts - 121 through 135 (of 186 total)
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  • in reply to: Russia to sell Strategic Bombers to China #2662715
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    Participant

    Can the Su-30 MKK fire Kh-22 or Kh-15, furthermore how many it can carry. Acquiring Tu-22M3 seems to be a good idea provided the right kind of missiles are available.

    in reply to: Stealth obsolete? #2607933
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    Participant

    That might be one of the better kept secrets. Regardless of that, we shall concentrate on the word *radar* first. What size? Which band? Airborne? Land-based? Carrierborne? What role? Detection ior interception?

    Flex

    All of the above variables can have any value, the only constraint is that radar should be able to detect F-22 with sufficient precision so as to enable an interceptor to reach with in a “search-sphere”, where it can employ on-board measures e.g. IRST, visual etc., and do “some-thing”.

    in reply to: Stealth obsolete? #2607990
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    Participant

    Has any company/country practically demonstrated a radar that can detect the F-22. To what degree the error in location-estimation has been reduced.

    in reply to: How do submarines communicate when under water #2062898
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    Participant

    Yes I understand that using extremely low frequency (ELF) they can “communicate” upto depths of 40 meters, however – as you also have said – the data rate is so low that it can only be used for passing launching codes etc…

    I wanted to know if there was any “high-speed” communication channel available, whilst being underwater.

    in reply to: China's news, pics and speculation part IV #2615629
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    Participant

    but yes, they would need to make mods to the FBW software. thats probably why the chinese J11s dont fly or handle the same as russian built Su27Sks (according to russian test pilots).

    In a negative or positive way.

    in reply to: China's news, pics and speculation part IV #2616028
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    Participant

    If the chinese developed Su-27 uses composites to reduce weight, will the FBW software will have to be tweaked.

    fft
    Participant

    It will be a long time before Russia will be able to build integrated circuits to support a server like the Silicon Graphic’s Altix family of chips. The real question is, how long has this technolgy been accessible to organizations that need it, like the NSA, CIA, etc.. Production quantities are not required and prices of tens to hundreds of thousands of dollars -per chip are spent! My estimate is at least “ten years!!”
    I remember working at AMI back in 1968 (I think) when North Korea captured the USS Pueblo. All of a sudden our company picked a contract to build a series of chips. Everybody who worked on the project in the company required a security clearance. (Can you imagine the difficulty of being twenty-five years old and having to try and find out the address of where you went to kindergarden in another city twenty years and, the school no longer exist!)
    What a lot of people do not realize is that Intel is NOT the leading edge in technology, just the leader in micro proscessors. Intel’s contribution is increasing the “yields” thereby decreasing the price and making circuits that are oriented towards specific markets ie. -PC’s. It has become a broad market but when it started it was a “nitche” market.

    While I have learned (recently -humble pie) such micro processors are connected in “some” parallel arrangement, this server delivers over 3.0 Gigabytes per second of sustained I/O bandwidth. A through put speed of 2.0 Gigahertz. The clocking speed for the system is 10.5 Gigahertz!!! There are circuits that integrate the processors to a massive memory! Altix 350 supports such shared memory up to 192GB with as few as one processor.

    Adrian

    Adrian, What do you mean by clocking speed of system to be 10.5 GHz. SGI’s Altix family of servers and clusters is based upon Intel Itanium 2 CPU having a maximum frequency of 1.6 GHz.

    LPI radar is simply CDMA technology. The problem of detecting LPI radar may not be the same as de-encryption (which requires huge processing power). All one needs is underlying frequency hopping mechanism, though it is a difficult probelm in it’s own right.

    in reply to: Does Europe has the capability to make a stealth AC #2674032
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    Participant

    I’d say that is pure unrefined BS. If there is any problem concerning the implementation of, say, a stealthy replacement for the EF-2000 it is procuring the money and forging the reqired political unity. The capability to design and successfulluy implement a stealth design exists in Europe. If the Americans really think European engineers are such substandard professionals why are US headhunters raiding our universities? By the way, who was the Official?

    I read that long ago, so I really can’t remember the name, it was probably a guy facing a congress committe, trying to explain the stealth and benefits of f-22 to senators.

    in reply to: More Details surrounding the US F-15s Versus Indian Su-30s #2675009
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    Participant

    Did India ever thought of performing some surgery on R-77 to improve it’s performance. India’s technical capabilities seemed to have matured for such an endeavour.

    in reply to: Best Physics #245404
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    Participant

    Flanker 2.0 has supposedly the most realistic flight model.

    in reply to: FS2004 / LOMAC #245406
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    Participant

    Since my new computer will actually have a graphics card, I’ve got a question for you guys in here. With the following specs, will FS2004 and/or LOMAC run?

    512MB of 333MHz DDR RAM
    2.8 GHz Pentium 4 through an 800 FSB
    128MB Mobile ATI RADEON 9700 Pro Graphics card

    Any thoughts?

    You should have gone for AMD A64 based laptop. A64 is right now the best CPU for gaming.
    You can also visit http://www.simhq.com for benchmarks.

    in reply to: PAK FA news #2680700
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    Participant

    Whilst Russians technically – no doubt – are capabale of making an AESA radar. They don’t have a well developed commercial semi-conductor industry (like taiwan or USA). This may result in per unit price of MMIC modules prohibitively high.

    in reply to: China's news, pics and speculation thread part deux #2680797
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    Participant

    A few moths ago – in one of the other threads – I speculated that with in ten years China will overtake Russia in aviation, quite a few people disagreed. Now it seems that ten years was bit of an over estimation. Russia better concentrate all of it’s efforts in PAK-FA rather than doing incremental improvements in Su-27 series and find it self hopelessly left behind than its neighbors and rest of the world.

    in reply to: Tu-160 Blackjack #2618943
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    Participant

    Regarding the plasma stealth, from what I have read on the internet, it is still not practical

    – It requires massive power
    – It blinds aircraft’s own radar
    – It creates a glow around the aircraft

    It has also been said that F-22 has been designed under the dual-constraint optimization problem of stealth and manuverability and is as manuverable as any other aircraft in the world.

    in reply to: Guess who buys the VERA-E? #2627911
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    Participant

    if the basic algorithm is well known, then most countries can develop something resembling this passive radar.

Viewing 15 posts - 121 through 135 (of 186 total)