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LowObservable

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Viewing 15 posts - 91 through 105 (of 954 total)
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  • LowObservable
    Participant

    Since the Navy’s biggest ships today are 4100 ton frigates I suspect it will be a while before they have a carrier air wing.

    in reply to: Dassault Rafale, News & Discussion (XV) #2187686
    LowObservable
    Participant

    The French have been briefing this philosophy for years – and they are completely correct in saying that stealth is an element of survivability, but not the whole answer.

    Blatting straight over an airfield at 250 feet to put a bunch of munitions on the runway is certainly dangerous, particularly with TFR high-beams full on.

    Low-altltude ingress w. minimal emissions + pop-up to target and deliver standoff weapons, with heavy jamming support, may be less so.

    There are few things harder to detect than those on the wrong side of several billion tons of rock…

    in reply to: Saab Gripen & Gripen NG thread #3 #2188030
    LowObservable
    Participant

    A broadbrush estimate:

    Because Gripen is smaller than Typhoon or Rafale, while things such as pilots, radar and weapons are the same size, something has to be traded off. Both twins will do rather better at “swing role”, carrying four or more AAMs, A-G weapons and enough gas to take them somewhere. I suspect that Rafale has substantially better range and Typhoon is faster and more agile at supersonic speed.

    But then there is that 2x difference in operational cost, and all that it implies in terms of reliability, availability and deployability.

    I never have owned a Mercedes but I have owned used “prestige” brands. It was an educational experience, at least for the mechanic’s kids, whom they helped put through college.

    in reply to: Saab Gripen & Gripen NG thread #3 #2189684
    LowObservable
    Participant

    Neither 36 jets nor 60 counts as a “large operator” in my book.

    Then a certain product is rapidly increasing the number of small operators in the world…

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2190287
    LowObservable
    Participant

    Oblig – Sleek is not synonymous with slender…

    I too noticed the lift at take-off and landing. It was just about equal to the airplane’s weight, plus or minus a bit.

    Nifty ladder, a bit like the retractable running-board on an upscale SUV. My S2000 doesn’t have a retractable running board. There is a reason for that.

    That looked like a hell of a lot of aerobraking on the landing roll.

    LowObservable
    Participant

    “F-35B for Switzerland because it’s the cheapest option and because ALIS”

    I’ve seen some wacky ideas here but that takes the cake, the plate, the knife and the little bride and groom figure too,

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2206881
    LowObservable
    Participant

    https://www.scribd.com/doc/263080737/Pragmatic-Rafale

    Interesting article…

    Obviously, ten years old – and when you stack it up against the piece cited by Halloweene, it’s rather obvious that to state “RBE2-AESA can/cannot do A,B or C” is silly and unfounded. If you want to use the radar for EW it is a matter of telling it what trons to squirt out where, which is mostly S/W. The limitation may be bandwidth, but that applies to anybody until a new generation of AESA comes along.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2207103
    LowObservable
    Participant

    Nine-year-old story. The important point is that every current fighter has a measure of sensor fusion, and that it can be achieved through federated architectures as well as through integrated ones. The F-22 and F-35 systems were integrated because they had to be integrated; the related tasks of EMCON and sensor fusion demanded computing power that (even in 1995) meant big processor banks that had to be shared because of practical space/weight/power/cooling limits. It’s easier now for each system to do more of its own processing. IIRC, even in 1995 I had to have a card in my PC to drive the printer via an effin big cable. Now we just send files.

    And (this is kind of EW and Radar 101) the radar only works with some of the EW, in a specific bandwidth.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2207278
    LowObservable
    Participant

    Ability to go m1.6 with 2xAAMs & 2x2k bombs – Seriously, why would you do that? Way to end up screaming towards your target after bomb release while running rapidly out of gas for egress.
    Ability to go maintain m1+ speed in dry thrust while combat configured – This is not confirmed for the F-35
    Ability to carry 6x2k bombs – So how far will the F-35 (or anything else) go with this load?
    Ability to carry 14xAAMs – Completely unrealistic and indicative of profound ignorance.
    Directional LPI Data links – Yes, the F-35 needs this heavy and complex system, even though it is useless for comms with anything except another F-35
    Automatic sharing of data – Undefined and as yet inoperative
    Fully Fused Avionics – Buzzphrase, undefined
    Middleware-based Avionics – Buzzphrase
    IIR MLD/MAWS – Not selected by customer but could be backfitted (in pylons if necessary)
    Automatic BDA – Hardly decisive, depends on low-rez EODAS
    Track all airborne objects in WVR battle-space – Puff claim.
    HMDS – JHMCS since 2003
    SATCOM – Available option
    Internal FLIR/IRST – EOTS is not IRST equivalent
    EW via AESA – Sure about that? In 2018?
    F-22 class LPI AESA – So what? Not required.
    AESA connected to ESM – meaning what?
    Pre-Wired for NGJ-Class pods – Define
    All avionics & stations fiberoptically connected – F/O of decreasing importance given performance of wire these days
    STOVL ops – Well, no.
    Austere ops – Yeah, right.
    Automated logistics system – No, and TFFT
    In-Ship training systems – What does this MEAN?
    Fully Funded Post-SDD development program – Er, AESA, Block 2…

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2207936
    LowObservable
    Participant

    Gun pod clown face!

    in reply to: Why the J-10 is an export failure so far? #2208269
    LowObservable
    Participant

    Newsflash: fighters are expensive.

    Air forces universally prefer to buy from a nation where they know both the military and the industry. When you have officer exchange programs that have been in place for decades, it’s a huge reassurance factor. Aside from Pakistan, nobody has that kind of relationship with China.

    Then there is the tiny problem that not only has nobody (except Pak) had a long industrial support relationship with PRC, but that so far the J-10 engine has been Russian. Russia and China have a snit and you have a force of supersonic gliders. And if China was serious about exports and had a nice shiny AL-31-equivalent engine ready to go, it would be on the stand at Zhuhai.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2208270
    LowObservable
    Participant

    The big problems with tactical cyber are (1) testing it to a high degree of confidence that it works and (2) knowing that it worked when you used it, and that you have not been diverted into an adversary sandbox.

    EODAS triangulation? Wait until it gets beyond the .ppt stage. Fundamental resolution limits plus the fact that at any significant range you are detecting blobs.

    in reply to: Saab Gripen & Gripen NG thread #3 #2208491
    LowObservable
    Participant

    It would of course be unheard of for a politician to say things for political reasons. However, anyone with half a brain knows that Gripen-for-Argentina discussions would be premature even if there was reality behind them.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2210073
    LowObservable
    Participant

    Putting a radar on a gimbal decreases it’s range

    How? Unless you make the assumption that a fixed AESA is a perfect zero-gap fit in the radome, there’s no particular reason why a simple rotating repositioner results in a smaller antenna, which would be the only possible reason for your statement to be true. In any case, that only applies at an az-el that is normal to the antenna or close to it – the idea of a repositioner is to increase search volume by improving off-boresight performance.

    and increases it’s logistics & maintenance costs.

    Any moving part has that potential, although a repositioner and an MSA gimbal are not the same. You would also (other thing being equal) expect to see a component-life impact from increasing power to compensate for off-boresight squint in a fixed array.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) #2210180
    LowObservable
    Participant

    Nonresponsive, and therefore ignored.

    Cue whine from Hops “Oh you’re walking away from the discussion”.

Viewing 15 posts - 91 through 105 (of 954 total)