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Pit

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Viewing 15 posts - 91 through 105 (of 489 total)
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  • in reply to: S-400 TRIUMF for Greece? #1789094
    Pit
    Participant

    This could well be a counter move to stop Turkish’s intention to get the S-400 that accord to some sources interested them a lot (some sources said Turkish Air Force is halved on interested between S-400 and the more advanced Patriot systems)

    in reply to: IRBIS and the detection of low RCS targets #2519053
    Pit
    Participant

    The devil is on the details, hehehe

    in reply to: IRBIS and the detection of low RCS targets #2519224
    Pit
    Participant

    – I repeat, a PESA, no mather how powerful it is, will never match an AESA/stealth combination

    Put AN/SPY-1D of the last baselines (that’s a PESA one!) against any “stealth” blub…

    If it flies it dies :diablo:

    in reply to: IRBIS and the detection of low RCS targets #2519228
    Pit
    Participant

    2 GHz instantaneous bandwidth…

    He…mother holly of god, well, that’s no surprise, those are the “baseline LPI instantaneous bandwitdh values” from the industry, and the better ones…should think then that 77 gets pretty high values on most other aspects.

    At all would not be surprised if the current “LPI values” from industry are based on -77 specification.

    Like Adm Jim Greer used to say (on Tom Clancy’s world :D)

    “Big San of a Bitcch!”

    in reply to: Ability of RuAF and Russian Navy to destroy US CBG #2519230
    Pit
    Participant

    Interesting Jonesy, I share similar ideas after all, Iskander-M for the Russian Army uses an optical seeker, probably a DSMAC kind, and I don’t know if there is the possibility to target a moving target, althrough I don’t know enough about the full cabalities of the system.

    Is interesting we always discuss the anti-CSG battle (CVBG??, what’s that??:D ), but we never take into account other more interesting, and potentially dangerous adversaries that are also more suitable to counteraction, per example the ESG centered around a multirole group of LHD/LPD, DDG, CG and FFG plus SSN support…

    They’re more vulnerable just because for they to accomplish its mission (deliver the *******s on the ground) they NEED to close in to the cost, off course, we know the advanced vertical envelopment capability of LHA/LHD, but you can’t put hevay lift equipment on the beach without using LCM, LCU and LCAC and similar deployable system from the big anfibs, and that means, you’re closing it to less than 50 nm…

    That means, you’re a damn big one target, and every boy who reads Hughes knows, that no ship likes to fight a fort, and you can turn a beach very easily into a fort with lots of coastal based AShM along ESM gathers and other methods of ISR….

    Combine that with mine deployment (not only your typical 5.000 bucks mine but those ones along that nasty stuff like MDM-1 Mod.1 with acoustic/magnetic/pression imploders) and agresive SSK use near the beaches (a 20×20 nm box pattern is useful for a SS to search accord to Soviet tactics for ASW and ASUW) and you can have a very nice way of getting a lot of problem to any invader force…in theory of course.

    Should mean that ESG acts alone?, no, not at all, but the CSG acting as the core of the Maritime Strike Force concept, would never likes to close ashore, why would they?, they would try to attrite the enemy with air strike (don’t think even your Tactom is useful for this kind of so critical target environment against highly mobile SSM coastal launcher, remind Iraq/Scud hunter in the 1991) from far back from where they can play in transit in such a way to make: a) difficult to any enemy air force to track and engage beyond 500 nm, b) difficult to any SSK force to get the kinematical position to engange the CSG at any other than head-on profile…

    Yes, we know that ESG have its own pretty decent attack capability (AV-8B) and strike capability (DDG, CG and SSN with Tomahawk) but if they’re fighting for the beach, they would use most of the attack sorties for that (not easy to fight people entrenched with good anti-landing disposition with heavy engineer support and mine deployment!) and they would have to risk, short range ISR assets (UAV) to enemy fire from the shore, specially from MANPAD (of course, limited to no more than 20.000 feet)…

    Problem for the defender force is always to mantain staying power for the whole deployment (not to lose your coastal batteries before deployment to bad ass B-2 or F-22A attack, nor to lose your SS at pier or harbour entry to bad ass Virginia nuke boat on ambush near your base), but if you mantain on the move and try to sistematically try atrittion over the “invader” force, I think you can try to get much more sucess than against any CSG force wathever…

    Always remind the Turkish scenario from Hughes book, althrough I have to admit, the Aegean sea is the most beatiful place for coastal combat in such a way, and your ideal missile should be a NSM-kind!!

    in reply to: Ability of RuAF and Russian Navy to destroy US CBG #2519283
    Pit
    Participant

    Jonesy,

    What’s your opinion on attacking surface groups (ESG, SAG, ARG) using terminal guided ballistic missiles like Iskander-E, along advanced real time ISTAR assets for cueing and surveillance?

    Remind you give some opinions on the topic for the chinese hypothesis, but not where, can you repeat them here?, I would be delighted to hear you and analyze what you think about.

    in reply to: IRBIS and the detection of low RCS targets #2520075
    Pit
    Participant

    1. Averange power depends on duty cycle! First must you increase the Pulspower (peak power).

    2. Great is better.
    Not always.
    Nmax = 100* 0,5/(df/fo)!
    Or the bandwidth degrade!
    It’s no magic it’s physic!

    Captor M; Source Manufacturer
    Monopulsradar
    Antenna gain 42 dB
    * Antenna gain is 6 dB higher for Captor M as for a 1 mtr Bars!

    The antenna gain counts!

    Russians already have a working AESA prototype – from Phazotron Zhuk AE.
    How many T/R module? It’s a corse grid array!

    How did Captor-M antenna’s gain is so high?, where is the tradeoff? could be the aperture efficency of the slotted array so high?, what about the beamwidth? or the sidelobes level?

    Can’t really believe those numbers, could you point a direct document so I can see it?…

    in reply to: F35 or su35BM #2547659
    Pit
    Participant

    Every military I know of trains like it fights.

    And sure they have suffered from that old and nice Von Meltke axiom :p

    in reply to: F35 or su35BM #2547667
    Pit
    Participant

    Radiating is the very last thing you want to do. Remember the mantra “If it radiates, it dies”. Radiating is a huge beacon that says “Here I am, come kill me!” This is why the Missile Approach Warners on Eurofighter are probably the dumbest idea incorporated onto a jet in the last 15 years. All the enemy has to do is listen for the MAWs and you know where the Eurofighter is. F-22 uses ALR-94 to rack up kills while never using its radar.

    But actually, the Eurothingie is working on MMW (K or Ka band) so atmosferic atenuation would not allow that at very long ranges.

    That also means that those claims “100 km range vs missiles” are just rubbish 🙂

    Would be interesting to see how the final “for export” F-35 will end in the RCS area, because no way in hell would be similar to the US kit. You don’t spent nearly one billion of US$ to “downgrade for export” a so much advanced plane as F-35 and let the same LO characteristics when they’re the most secret asset of the design 🙂

    in reply to: F35 or su35BM #2547675
    Pit
    Participant

    so when did EADS start selling to the Russians? And people wonder why there should be multiple tiers of stealth on the F-35. Last thing we need is EADS making a buck off US stealth technology by selling to the other side.

    Did you know that Indra’s DIRCM system for A400M will be developed with help from Rosoboronexport?…no idea exactly wich institute, but accord to the last Indra’s advertise at Jane’s IDR (November 2007 issue) that’s it’s.

    in reply to: Brazil – Looking for 36 fighters #2550890
    Pit
    Participant

    If I remember well, Mikhail Pogosyan in December 2006…
    The KS-172-1 was never flown, it´s a cardboard weapon.
    But if you have ANY proof that I´m wrong, I´l be more than happy to acknolege my wrong assumptions…
    Of course that it would a bit strange that such a weapon had passed such an important development step without one single RUMOUR, let alone any press conference.

    I was forgeting, i´m not Brazilian, i don´t have a nationalist bias in this question…

    There is a long difference between been a “mockup” and “never have fly”.

    Izdeliye 172S-1 (K-100-1), better said, its initial design flight as unguided (rocket test, telemetry test) in the 90s, and R&D have been continued since early 2000, with GNPO Agat researching the “Shayba” seaker head for it (and you have just to look at the different number of JMR articles on the issue the last two years, mainly this one)

    That applies pretty well in my book as “under research” and not exactly just a CAD/CAE idea (that would be just feasibility study, and early one!)

    And again, why in hell we would want to attack Brazilean boys at all?, stop to dream, we don’t care about the Brazileans, or at least, don’t care about you as much as you care about us 😮 😀

    As per the arguments here, nice and fine…no matter of how much correct or false they’re.

    in reply to: Brazil – Looking for 36 fighters #2551003
    Pit
    Participant

    It was never flown. Until now it´s only a “cardboard, spit and glue” mockup backed up by CAD-CAM computer graphics.

    Says who…you? :rolleyes:

    Oh my, don’t forget the almighty F-2000 (Mirage-2000C-S4), with their mighty Super-530D (10 delivered, 5 to be off-service by 2010), Magic-2mk2 (22 delivered), and 3650 amazing canon bullets :p :p :p

    in reply to: SM-3 to test against multiple targets. #1791905
    Pit
    Participant

    Where on earth did you hear that Pit?.

    From a theoretical PoV, opinion of one INDRA’s PhD Radar designer, talking about the topic.:)

    Let me ask him again, just to be clear, and will pass again his conclusions.

    in reply to: SM-3 to test against multiple targets. #1791927
    Pit
    Participant

    If the targets are near Aegis ship (inside low altitude radio-horizon), SPY-1D can guide till impact the missiles (SM-2MR BLockIIIA/B) without need of the SPG-62 CWI…the guidance error of the MCGU would not be that great to not avoid the missile’s warhead to do its job (big blast!)…

    Further is the target, bigger is the tracking error, you need the CWI further to enhance the pK.

    in reply to: 1st images of Su-30MKA #2552785
    Pit
    Participant

    Red Star and algerian roundel?

    Looks like a fake to me.

Viewing 15 posts - 91 through 105 (of 489 total)