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Jonesy

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  • in reply to: Royal Navy Type 4x: Delays and Program Setbacks #2072725
    Jonesy
    Participant

    Funny man. Will be amusing to see how many think this is part of Planemans little exercise and vote!.

    in reply to: Best Fighter of the 70s #2487795
    Jonesy
    Participant

    Why would the Viggen be 2nd best to the F-4 though?.

    Viggen was perhaps more ‘home nation optimised’ than a 70’s F-4 but its still very well rounded set of capabilities offered by the generic airframe.

    Any known examples of DACT between Viggen and the F-4?. I recall reading of F-16’s absolutely trouncing Viggens in DACT but, somehow, I’d not expect a Phantom to accomplish the same thing.

    in reply to: RN Type-XX Poll: Redefine priorities! #2072748
    Jonesy
    Participant

    Hi Planeman,

    Your drawing above is interesting but, like Distiller, I have some doubts about that forepeak VLS. Those missiles are going to take a hell of a shock load in heavy seas – hope they shoot if you need them!. Also there doesnt appear to be much space for the 155’s magazine with the deep VLS fairly close behind the mount?.

    in reply to: PLA (All Forces) Missiles 2 #1785944
    Jonesy
    Participant

    10m resolution is used to determined if object is a carrier, not for search mode. Much lower resolution is used to paint a wide swath in search mode.

    Exactly the problem!.

    The search strip, to get the depth of coverage, is at a resolution much lower than that required to get details sufficient to clearly identify the carrier. Using a satellite to target for an OTH missile shot directly is a gamble in any environment where other vessels the same size as a carrier could be. Off the North Cape this might not have been such a huge issue….the South China Sea is a somewhat different kettle of fish though!.

    The simple fact remains though that you cant zoom in a SAR radar unless you are spot imaging and you cant spot image until you have a defined target to image!!!.

    in reply to: PLA (All Forces) Missiles 2 #1785948
    Jonesy
    Participant

    Coolio we’ve discussed this before. You do not ‘zoom in’ the product from a SAR satellite – the technology does not work that way. Space based SAR’s work by emitting on a continuous strip of a predetermined depth, acording to the resolution needed, the output being compiled against time to construct the image.

    In practise this means that the SAR swath with the ship contacts would not be viewed in real time…near real-time at best. Even that is dependent on there being a downlink station in range for the sat to empty its transmit buffers down to for an operator or image processor to even determine that there is a contact of interest on that strip.

    You can SAR spot image by focusing very frequent sweeps on a discrete target box, but, not from a theatre search asset and if for any reason you wanted to it would be on the second pass at best. Given that a LEO SAR sat is orbitting at a roughly 90min period that means your contact (who knows he’s just been pinged by a SAR bird) is 45 nautical miles from datum. Seeings that, at 10m resolution, your strip depth isn’t going to be more than about 15nm its odds on that the carrier group is well gone by the second pass.

    This is where Your Fathers comment about needing something like 24 satellites to form a coherent targetting system comes in.

    in reply to: PLA (All Forces) Missiles 2 #1785961
    Jonesy
    Participant

    The US-A series was discontinued in the mid-80’s and was the nuclear-powered version. It was the loss of that capability that crippled the Legenda targetting system that might just have seen the P-500’s and P-700’s become viable anticarrier weapon.

    The US-P (as well as the follow on US-PU/PM vehicles) wasn’t nuclear and was a pure passive ELINT bird that relied on the US group emitting on something powerful and recognisable to track it. I say was because the last one de-orbited without replacement in February!.

    Satellites finding a carrier……hahahaha 😉

    in reply to: RN Type-XX Poll: Redefine priorities! #2072824
    Jonesy
    Participant

    B) – We’ve got area AAW. We need ASW and to that end as many Merlins as we can get on appropriate platforms. Local air defence only for this hull.

    D) – If we arent going to do (B) the hull has to be bigger simple as!.

    Cant vote for any of the rest…no matter how much I’d love to vote A!!!:D

    in reply to: Royal Navy Type-4X Design Committee #2072977
    Jonesy
    Participant

    The better example perhaps is the Dutch Zeven Provincien class. 6000 tons with ABM, AAW potential for TLAM. again only one helicopter but 1000 tons under specs.

    It was the LCF I was loosely referring to with the ‘nothing magic’ comment. With cells split off for TLAM, ABM’s and quadpack ESSM the amount left for AAW is sorely limited for anything over a modest threat level environment. Plus the range of the Zeven Provs is wholly ineadequate for RN needs, plus, as you indicate the ASW is nowhere near what we’d need!. 1000tons displacement isnt going to do much to change that.

    Matt,

    Indeed. The old witicism about an elephant being a horse as designed by commitee is well known. Seeing the big gray horse’s specs being laid down as a live process I never expected to see!.:D

    in reply to: Royal Navy Type-4X Design Committee #2072993
    Jonesy
    Participant

    The KDX-II is a very poor example I’m afraid PM. It is a textbook example of a design that ‘looks’ more multirole than it actually is.

    It does a little bit of, low-volume, area air defence…lacking the sensor fit for any better capability or ABM….which would add topweight. It has a modest land attack capability and inadequate ASW provision for the kind of escort the RN would need. Information on the vessels range seems difficult to come by, but, going by the KDX-III it doesnt look to be any great shakes. Even stretching this vessel by 1500tons in displacement is not going to address these horrible compromises.

    Talking of KDX-III that is the design you need to be looking at for your baseline. That can do comprehensive area air defence plus ATBM. 128 VLS cells means an appreciable volume of LACM can be embarked sufficient to actually achieve something and it manages a towed array even if its aviation dept is, again, wholly inadequate to RN ASW requirement. That is a 10k ton hull full load and it can only manage 5500nm range!.

    There’s little magical about getting a 7k ton hull to mount a 64 VLS cells, a competent MFR/VSR combination, and even a couple of light choppers in the aviation department. Getting that with the range to stay with the Darings it’ll be teamed with….circa 7500nm….isnt going to be so easy.

    So, basically, your committee’s requirement is presently for a KDX-III level of sensors and firepower, with T45’s range and economy, plus an enhanced aviation department all on a hull 3000tons lower in displacement than the KDX-III. Good game, good game!.

    in reply to: New fighter for Georgia #2489314
    Jonesy
    Participant

    Ed,

    I fear you are thinking too conventionally here. Any structure the Georgians put in place the Russians can dismantle with shocking effectiveness. That goes for hard surface strips that can be identified and hit or conventional air defence nets based around Patriots, I-HAWKS, Rapiers or whatever. The more rigid and conventional the defences the more it will suit the Russians exisiting conventional capability to defeat it.

    The only prayer that the Georgians have for keeping forces in the field is to keep them hard to find and build in as much redundancy as practical. That means passive sensors wherever possible. Forget high power SAM radars – think PCLS (Czech Tamara/Vera or LockMart Silent Sentry etc) for volume search and optronics for cueing. Lots of ground-based countermeasures systems – chaff launchers, multispectral smoke generators, decoys and mobile EW vehicles to overload and misdirect Russian targetting capability. You want the Russians tied up trying to sort out what to shoot at first so theyre not tied up blasting your assets to scrap!.

    I appreciate what you are saying about the Gripen having a short field capability, but, you are still talking about a requirement for several hundred yards of flat level tarmac with no median and no streetlights etc. These are likely to have to be developed, limited in number, and will be recognisable from opfor recon. Harrier, on the other hand, needs a mere few hundred feet for a rolling jump and is little bothered by even a modest gradient – something much easier to find on most road networks without prior preparation. Remember too that the forward deployment capability for Harrier is proven under austere FOB conditions. Yes it does require maintenance, but, operationally its not done too bad so far!

    MisterQ’s comment is a very sound one in general – we’re all agreed that SAM’s are a higher priority than fighters here. If they were to want to acquire a useful tacair capability, my view, is that Harrier is the only one that offers viable capability given their strategic and tactical situation!.

    in reply to: RN Type-4X poll 3: Displacement #2073020
    Jonesy
    Participant

    Just realised I never voted on this one:

    1, D
    2, E
    3, C

    To do all the things that ‘the commitee’ seems to be demanding here is going to take us well beyond the standard destroyer displacement. Takes us away from the C1 concept and any vestige of reality too! 🙂

    Best you could pitch this as, I suppose, would be for a direct like-for-like replacement of the ‘command cruiser’ role we are sort of using the Type 22B3’s for at the moment – if we could afford such a hull.

    Oh yeah to engage in supreme nitpickery Planeman you need to change the title of the threads too!. In RN Type numbering a T4x would be an AAW ship – a general purpose vessel like this is turning out to be would be given a Type 8x number! 😀

    in reply to: PLA (All Forces) Missiles 2 #1785984
    Jonesy
    Participant

    Echo,

    This is getting a bit tedious for all concerned now. You’ve gone on record here stating that all manner of assets are available for targetting and identifying ships from the captains of tramp steamers to James Bond yet you have been able to support none of them when questioned. You havent indicated a single asset capable of providing surviveable targetting nor evidence of a successful coordinated strike on a CVBG/CVSG that was attempting evasion…not one by the Soviets, Russians or Chinese. Yet I’m in dreamland?.

    On Earth, nations don’t sneak attack on other nations, well, not anymore at least – in terms of the nations we are talking about here. Any escalation would be well prepared for.

    This is getting outrageous. If there is one lesson that the MC02 exercise, you cite so readily, taught its that leaving an opponents offensive infrastructure intact if you are planning to close his coast isnt very clever. Realistically this isnt a huge revelation in military thought as people have been reducing coastal defences, of one type or another, going back to the days of muzzle-loading cannon and square rigs!.

    First principle of modern military doctrine is the manoeuver to gain optimal positioning for the employment of your weapons whilst minimising your vulnerability to threat systems. If that sees the USN salvoing TLAM 500km offshore they would have little compunction about it. Ask anyone living on the Falklands in 1982 if sneak attacks are still a feature of modern combat!.

    Unless you are an ex-Soviet Navy captain, or in the Russian military, which you are not, your / their insights aren’t as valuable as you may think.

    …and thats the last straw. You know nothing of what you are talking about, seemingly arent interested in actually learning the history of the weapons systems you so revere, and their many shortcomings, and ascribe knowledge of these inherent flaws as western naval fantasy?.

    This is is obviously pointless and I’ll waste no more effort on you. I will leave you with one last ‘exercise for the student’ though. Look up the number of OTH antiship missiles that have actually been fired – starting with the Eilat sinking in 67 – then find the number that actually hit their intended target. The answer might teach you something!

    in reply to: RN Type-4X Poll: SAM #2073145
    Jonesy
    Participant

    A,
    I – (CAMMS)

    in reply to: New fighter for Georgia #2490039
    Jonesy
    Participant

    So the general proposals for a country thats just found its airbases targetted, and been the recipient of TBM strikes from a neighbour liberally equipped with many different types of standoff weapon, is that it should buy a type thats dependent on a large paved, fixed, runway?. If the Goergians oppose Russia with a comprehensive fighter capability then there is no way those bases could be allowed to survive to generate a second or third sortie per airframe!.

    The definition of a ‘good’ type for the Georgians would be something rough-field deployable, BVR/PGM capable and cheap. Range and performance could be considered secondary as the targets are never going to be far away!. That criteria list spits out an obvious contender – Harrier II Plus. At a pinch we still have FA2’s that could give a BVR and ARM capability probably for pocket change the way we sell stuff off!.

    Get a few dozen civillian petrol stations scattered about, possessed of a short stretch of highway in front, discretely outfitted with an extra storage tank for Jet-A and have maintenance/ordnance crews mobile in standard army trucks continually driving round a ‘delivery route’. Lots of possible generation sites gives the Russians a targetting headache trying to knock them all down and could provide ‘easy’ targets for the mobile SAM batteries that would have to be the Georgians primary purchase.

    On the SAM front I’d be looking at the truck-mount VLMICA system. Can cue off passive optronics and can work single-vehicle standalone or netted. Perfect SAM trap material.

    in reply to: RN Type-4X Poll: Main Gun #2073173
    Jonesy
    Participant

    Sferrin

    The only time I’ve ever really discussed the Mk45 mount with a USN weapons lad was before the present Mod 4 version. He had nothing bad to say about the weapon other than the types of gripe all maintainers have about microswitches positioned where you cant get a test meter in and that sort of thing. The advertising says that the mod 4 variant rationalises the design to improve serviceability….which has to make it a reasonably good weapon.

    The new OTO mount has been selected by the Germans – that itself is usually all the testimony you’d look for. Going by the brochure it looks like an excellent weapon and one that will benefit from ongoing development.

    So you have two decent weapons, both reassuringly expensive, the US gun has a very wide installed customer base and no shortage of ammunition suppliers or spares – for us its even better as BAE now ‘make’ it!. Against that the OTO is undoubtedly one of the most advanced medium calibre naval mounts on the market and offers a range of interesting ammunition. You’d have a hard time picking between the two – if we were to switch to 5″.

    Seeings as we are not likely to do that it would be hard to envisage either weapon on an RN escort. The Mk45 was, in fact, very intensely promoted to MoD to find a place on the T45’s but rejected.

    Also what’s your opinion of the OTO “Super Rapid” 76mm vs the Mk 110 57mm?

    I have to admit a bias here. One of my instructors had experience of the OTO Compact in RN service, used on the HK patrol boats, and did not like it. Its widely known that the base Mk8 4.5″ was an absolute bag of spanners in reliability terms, but, his views on the Compact were darker even than his views on the Mk8. His words went along the lines of wondering ‘how much trouble you had to go through for a poxy 3″ gun’!!!. Apparently the main issue was with the turret hydraulics and, even after more than a decade, it colours my opinion on the weapon.

    From the last discussion we had on this it came to light that OTO had developed an AHEAD/3P type round and an on-muzzle RF fuse-setter for the 76SR. It will therefore do everything the Bofors mount will…. plus it will fire the ‘gucci’ guided rounds that are so widely touted which the Mk110 cant. I’m told the hydraulics have been torn out for the SR mount too so reliability should be back where you’d expect.

    It is illogical I’m sure but, personally, I’d want the Mk110 with 3P ammo every time.

Viewing 15 posts - 2,806 through 2,820 (of 4,319 total)