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Vnomad

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  • in reply to: JF-17 vs J-10 vs LCA #2141075
    Vnomad
    Participant

    Neither are de-facto weapons for the USN. The USN has no POR for the JSM, and the LRASM purchase is interim and in quite small quantities (and that too split with the USAF) for very specific mission sets and threat scenarios largely in one AOR.

    The USN barely has any F-35s as well. Its a figure of speech. As I said, two posts back – the LRASM & JSM will over the long term replace the Harpoon in the air-to-surface role.

    in reply to: JF-17 vs J-10 vs LCA #2141089
    Vnomad
    Participant

    No, not if the target is within range of the rocket motor powered flight range, it wouldn’t need a boosted ballistic trajectory. Exocet missiles before the Block 3 MM40 version all used a rocket motor. Range would vary depending on altitude and speed of the launch aircraft.

    Assuming a burn time of 30 secs and average speed of Mach 5 (both generous assumptions) we’re looking at a powered flight range of 0.34 x 5 x 30 ~ 50 km.

    The Exocet had a long burn rocket motor but it was designed to fly at subsonic speeds.

    in reply to: JF-17 vs J-10 vs LCA #2141107
    Vnomad
    Participant

    Secondary or not, until next generation missiles enter service. SM-6 is de facto top end USN anti surface weapon. Very doubtful they can sync with Harpoons in wartime conditions, and given its shorter range, highly inadvisable. More likely the enemy would be hit first by SM-6, then if necessary the Burke would close in to finish it off with Harpoons.

    I meant Harpoons syncing with other Harpoons, not with SM-6s. The SM-6 in an anti-ship role is purely a fall-back option (with the USN dispensing with silo-based Harpoons).

    USN doctrine calls for dealing with surface (and aerial) threats at ranges well exceeding that of ship-launched missiles. That’s what the super-carrier and its fighter complement exist for. The de facto top-end USN anti-surface weapons consist of LRASMs & JSMs launched from SHs & F-35Cs.

    China doesn’t need CM-400AKG because it already has long range land based AShBMs, and heavy fighters to carry ramjet missiles.

    And yet the default anti-shipping missile for the JH-7 & J-15 is the YJ-83K, and that for the Su-30MK2 is the Kh-59MK.

    in reply to: JF-17 vs J-10 vs LCA #2141150
    Vnomad
    Participant

    AShM with ballistic trajectory plays a huge part in modern naval tactics today. If an Arleigh Burke destroyer fights a peer surface threat today guess which is its weapon of choice, Harpoon? Nope, short ranged, subsonic. The Burke’s first choice is actually SM-6 which has a secondary ballistic anti-ship capability. It would spam the target with up to 30 missiles, overload its defences and either set that ship on fire or damage it’s sensor arrays with those relatively light warheads.

    The operative word is ‘secondary’. The primary anti-surface weapon for the USN remains SH-launched Harpoons.. to be eventually replaced by the LRASM & JSM – both powered by turbojet engines.

    Harpoons are more powerful, but their slow speed and short range means they can’t sync on target with simultaneous SM-6 strikes.

    No such rule. If anything, the fact that they can be throttled allows for better coordination for arriving at the target zone.

    Low altitude ramjet missiles like YJ-12, HF-3, ASM-3 are theoritically better, but don’t discount hypersonic dive missiles in large numbers. The USN is betting on it.

    At the moment, even the Chinese aren’t taking that route. The go-to solutions for PLAAF & PLAN fighters are still the YJ-8 & YJ-12.

    in reply to: JF-17 vs J-10 vs LCA #2141157
    Vnomad
    Participant

    While it may be able to fly a boosted, ballistic trajectory with a terminal glide stage, there’s no reason to assume this is the only way it will be employed. Given it’s stated range, it’s most likely to still be powered in the terminal stage allowing it to perform evasive manoeuvres, which is one of it’s key capabilities, along with around Mach 5 terminal speed. The glided ballistic trajectory would only be used to extend its range beyond that of its rocket powered stage.

    That is the way it’ll be employed because that is the way all missiles of the type work. It’ll fire off into a climb to gain altitude before the motor burns out and then coast to the target. Some SAMs & AAMs feature a dual pulse rocket for greater terminal energy but its not something a diving ballistic missile needs.

    Nothing to do with the stated range of the system – the Phoenix & R-37 achieved similar ranges with a mono-pulse rocket motor.

    In any case, although it may not be used by the PLAF, they do seem to be using traditional ballistic missiles as part of their “carrier killer” capability, with bona fide ballistic flight paths and gliding terminal warheads, but which they claim are capable of performing evasive manoeuvres, so there is some validity to this approach.

    Furthermore, how many ship based anti-air systems have actually been demonstrated to be effective against a ballistic threat, aside from say the US SM series?

    The real world efficacy of the DF-21D aside, fact remains, it adopts an exo-atmospheric flight path – given its 1,500 km range, I’m guessing its apogee would be in excess of 300 km (the typical fighter jet cruises at an altitude of 10-15 km) – unlike the CM-400AKG which coasts well within the envelope of mid-ranged ship-borne SAM systems.

    in reply to: JF-17 vs J-10 vs LCA #2141212
    Vnomad
    Participant

    End stage manuvering is important by also overstated. The most important factor is being able to overload the defender with as many missiles timed to arrive at the same time. No system today is going to reliably handle 20 simultaneous attacks.

    That’s not a factor insofar as the question of ‘which missile’ is concerned. Its like the pilot skill, important yes, but irrelevant to a comparison of aircraft.

    From the defender’s point of view the best option is to down the aircrafts before they launch. Once those missiles are away whether those are jinxing at Mach 3 or diving at Mach 5 the defender is hard pressed.

    For a little jet like JF-17, the ability to carry two hypersonic weapons makes it a formidable threat. There aren’t any other hypersonic AshM you can hang two of on a 6 ton jet. Weapons like the ASM-3 will be more common in time, but even Japan haven’t put it into mass production yet.

    A JF-17 carrying two CM-400AKGs isn’t necessarily anymore formidable than one equipped with two C-802s. The ‘carrier-killer’ thing is pretty much a myth, else it’d be the weapon of choice for the J-10 & J-11 as well.

    The CM-400AKG like I said in my previous post – is a boost-glide weapon that follows a predicable ballistic trajectory that makes it susceptible to interception by medium/long range SAMs, as compared to conventional i.e. air-breathing missiles.

    The actual USP of the missile is that its light enough to equip the JF-17’s mid-board pylon (which is rated for Mk83s) – thus freeing up the inner-pylons for fuel tanks – while being a lot cheaper than something like the NSM.

    (All pictures show it on the JF-17’s inner pylons but I’m assuming that’s to preserve airframe life.)

    in reply to: JF-17 vs J-10 vs LCA #2141450
    Vnomad
    Participant

    Are there any pictures of the J-10 or J-11/16 equipped with the CM-400AKG (or a Chinese-variant)?

    in reply to: JF-17 vs J-10 vs LCA #2141453
    Vnomad
    Participant

    CM-400AKG is the export variant of the YJ-12 which is a ramjet powered missile with top speed of up to Mach 5 and depending on altitude up to 400 km range. It’s designed to kill heavily defended targets like aircraft carriers. JF-17 can carry two of these. There is no lightweight fighter with anything close to this capability.

    Manufacturers the world over have adopted ramjet & turbofan/turbojet propulsion for anti-ship missiles (aside from the Soviets/Russians who used it more for nuclear roles), and for good reason. A rocket-propelled AShM is essentially a glide-weapon. It follows a predictable ballistic trajectory making it vulnerable to interception by area-defences and since it can’t be throttled its not very good at terminal stage jinxing (end-stage maneuvers would bleed much more energy than a cruise missile).

    It’ll likely be effective against corvettes & smaller classes i.e. those equipped only with point-defence missiles & CIWS (read: RAM, Aster 15, Barak-1, etc.) but any ship equipped with longer ranged systems (read: ESSM, Aster 30, Barak-8) will engage it before it arrives at the ‘dive-envelope’.

    Vnomad
    Participant

    When I speak about “marvel”, I don’t specifically aim at the safety record, but rather at the mantra that, in pretty much every aspect, its fans describe it as the “fabulously magnificent example of perfection leaving everything else in stone age..” more or less

    I don’t recall “magnificent”, “perfection”, etc. being mentioned on this thread. The current discussion has been more on the lines of you talking about the likelihood of dead pilots and mostly everybody else stating that the aircraft was safe to fly.

    From memory, losses of the Rafale:

    There was a 5th loss in 2012 –

    https://aviation-safety.net/wikibase/wiki.php?id=146597

    Vnomad
    Participant

    “with 125000 hours clocked” it still hasn’t even ended its initial development, had one aircraft lost due to engine fire (Rafale lost 4 aircraft due to human error, not one for a technical problem), was grounded and then flight envelope reduced for months because of engine overheating (from memory, engine used to bend too much for the tolerances applied).

    Initial development has nothing to do with ‘safety’ – 125,000 hrs without crashes is very much a relevant statistic (only software dev. is pending anyway). At most, you can chalk up the engine fire to development. And even that one was still recoverable to a large extent.

    P.S. What was the human error behind the 2012 crash?

    Is it the worse aircraft in history? no, far from that, is it the marvel some want us to believe it is? I have my doubts… in any case, what I (or you for that matter) think about it won’t change a single thing anyway

    I said “its perfectly safe”. If you read that as “it is a marvel”, I think the problem lies at your end. No well-informed & reasonable individual (i.e. not distracted by nationalism) would assess the F-35’s safety record as one that incites ‘doubt’. Whatever you and I think about it, its certainly isn’t dissuading air forces around the world from backing its acquisition.

    Vnomad
    Participant

    TooCool just reminds the fact that the Canadians themselves have said more than once, and the fact that a twin engine is safer than a single one if anything, because it can afford to loose one engine

    Yeah and three engines are safer than two engines, and four are safer than three. Didn’t stop the Mirage 2000s & F-16s & Gripens and a dozen others from doing just fine with the one.

    And, once more, this whole discussion about twin vs single engine aircraft started because someone asked how Canada could prevent the F-35 to compete.. and I gave an answer that is obvious: all they have to do is ask for a twin engine aircraft.

    Successfully excluding the F-35… while leaving Boeing’s Super Hornet still in the race.

    And for the record, Canada can exclude any aircraft from the running without jumping through hoops, military aircraft are not subject to WTO regulation. The have no obligation to entertain Su-35, for example.

    You can argue about how marvelously safe the F-135 is (it was already grounded a couple of times, but hey, let’s imagine it is safe), the fact remains, if they want to eliminate the F-35, they can easily, and perfectly legally do so .. end of story

    With 125,000 flight hours clocked, the F-35 has a better safety record than the Rafale, EF, SH, Gripen etc. By the end of 2018, it’ll overtake the Rafale’s total flight hours. Unless there’s a spate of crashes within the next 12 months, its pretty reasonable to conclude that its a perfectly safe aircraft.

    Vnomad
    Participant

    Actually I looked into it and it turns out I it’s not most of them, as there have been quite a few midair collisions amongst other causes. However there’s still quite a lot of room for aircraft losses due to engine failure, out of the almost 90 airframes lost for all users. Unfortunately the list I saw didn’t list the cause for the majority of the crashes.

    How much is ‘quite a lot’ exactly? AFAIK the Mirages haven’t been falling out of the sky all over the place (a la “200 engine failures”). And I imagine TooCool_12f would have been quite vehement about the safety of a single engined aircraft before the Rafale entered the picture i.e. when the Mirage was still on the market.

    As far as Canada & the F-35A are concerned, we’re talking about an aircraft that’s equipped with an engine that’s over two decades newer and perhaps 1.5 generations more advanced than the M53. And an air force that, contrary to public opinion, operates from airbases that aren’t that remote. While a catastrophic engine failure for an RCAF F-35 is unlikely, the prospect of a fatality post-ejection due to failed SAR efforts (as suggested by TooCool_12f’s fear-mongering), is just as unlikely.

    https://i.imgur.com/L1RTiPf.jpg

    Vnomad
    Participant

    Pretty much every time we lost one I guess.

    How many is that?

    Vnomad
    Participant

    [QUOTE=”TooCool_12f]I merely cited what they say: government recordings show that they had to shut down 200 times one engine in midflight.. why? “safety reasons” they don’t say anything more precise. but have you ever seen a pilot in a twin engine aircraft shut down an engine just for fun? now, the class A mishaps stats about the F-104 are very nice, but I have only one question: if they HAD to shut down an engine, on an F-18 which is by far a more modern aircraft, what would’ve happened if they had only that one onboard? Can you just answer that simple question?[/QUOTE]
    How often did the Mirage 2000’s engine conk out?

    Vnomad
    Participant

    er, from the examples you give, Sweden and Norway are a lot smaller (long but narrow), meaning they are always in relative vicinity to an airbase, they are literally dwarfed by the size of canadian territory up north. Japan is much smaller as well (same thing) and also much further from the arctic circle definitely not having the same conditions and, what’s more, they do operate twin engine fighters as well (F-15), which allows them to modulate depending on their priorities… and, what’s more, their next gen fighter they want to develop is also a twin engine one, if I’m not mistaken. For the USA, a comparable territory would be Alaska where operational missions are performed by F-15s and F-22s… twins. Other countries close to the arctic circle are Finland (operates F-18s – twin engines) and Russia (all fighters developed for long range over Siberia for a number of decades by now are twin engine fighters with no exception).

    Just a few corrections –

    – That Norwegian F-16s & F-35s will fly exclusively over land, is assumed in your argument. In reality, the RNAF routinely fly over the Norwegian Sea and trains for anti-shipping roles.
    – The Danes are have run F-16s trials from Greenland to prepare for future operations with the same applying to the F-35.
    – The NATO Icelandic Air Policing mission has included F-16s, Mirage 2000s as well as Gripens.
    – The USAF’s Aggressor F-16s based at Alaska fly everywhere their sister squadrons do. And an F-35s squadron will be joining them by 2020.
    – Japanese F-2s routinely operate over the Sea of Japan & Sea of Okhotsk. As will the JASDF’s F-35s.
    – Not only the USN, but the RN & USMC (which rejected SHs altogether) will be operating a single-engined fighter over the open sea.

    And most pilots would rather eject over the Canadian wilderness, however remote, rather than into cold ocean waters (you may remember the fate of the passengers of a certain ship called the Titanic).

    Now, about the start of this (once more repeated discussion): the question was “how would Canada fight the commercial war”, and some have suggested that they should ask for some details that they believe the USA would refuse.. I merely suggested a more “reliable” solution to exclude the F-35 which is to ask for a twin engine fighter.. by design, it would exclude the F-35 without the risk of the vendor eventually saying “ok, we accept these conditions”..

    Still leaves the SH in the fray.

    Also, you’d need the RCAF to sign off on that. And while they may have acquiesced to an interim SH order knowing that they’d get their preferred aircraft in due course, they’re likely to be a lot less accommodating if the govt forces the Rafale (or EF) on them.

Viewing 15 posts - 151 through 165 (of 2,429 total)