Comments by "Hyok Kim" (@hyokkim7726) on "Is the Navy’s $13 Billion Aircraft Carrier Obsolete?" video.

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  9. Can you tell me why USN hasn't adopted RN QE Twin Tower configuration for the Ford class? French navy has adopted RN QE TT configuration as well, and so will ROKN for her first aircraft carrier. I don't think aircraft carriers are obsolete so long as you have a good chance of obtaining air superiority. ROKN is planning to build up to 8 aircraft carriers by 2050, divided into 4 aircraft carrier groups (not the biggest, but still bigger than RN QE, and technologically most advanced, combining RN TT configuration, and FN K22 reactor, with ROK's own modular mini-nuclear reactors, for better redundancy, and safer disposal of nuclear fuels, and easier refuel/repair as well). ROKN will be using low grade civilian uranium, not to run afoul of any nuclear treaties, why ROK has chosen K22 reactor design from FN. Btw. I found out more about the advantage of AESA radar on KF-21 over AESA radar on F-35. For starters, AESA on KF-21 is more reliable under hard use than AESA radar on F-35: It is more vibration resistant, and high heat stable. But the real game changer is in the radar performance: AESA radar on KF-21 can focus on an image on the screen and magnify it by 20 fold, to discern whether the image represents a bird, or a stealth plane. This feature can be preprogrammed to auto focus on any image on the screen. Also, AESA radar on KF-21 is far more modular than AESA on F-35. It is designed to work 70% capacity even when some of the components are broken; AESA radar on F-35 is 100% off when one or more parts fail. ROK has the radar tested by IDF, and IDF was impressed enough to offer co-production deal, but ROK has chosen Leonardo of Italy, for marketing purposes. ROK doesn't want to piss off MBS, when he's expected to order 300 to 500 KF-21s soon, and Leonardo also has more sales leads in ME, and Africa than IDF. The idea is that while still expensive, ROK AESA radar is a lot more affordable to the budgets of the 3rd world countries in ME, and Africa, most of which cannot even afford 3rd gen fighter jets, and ROK AESA radar will make these countries far less vulnerable to SEAD by 5th gen fighter jets, when used either for AD, or for their AFs. ROK will make a lot of money, and build a lot of support at UN, and hopefully, after getting used to ROK AESA radars, many of them will choose KF-21 for their AFs later on. Btw. FN wants to build an operational agreement with ROKN, and UK RAF wants to build a pilot training program with ROK AF, together. I think UK has given up on 'Tempest', after ditching Japan as a partner. The word I hear is that both RAF and RN recommend UK to buy 60 KF-21s, only needing approval from PM, who has political consideration besides the military consideration. I think U.S. needs to fix the 3 deficiencies of F-35 before moving on to NGAD: Don't put the cart before the horse. Unless, those 3 deficiencies are solved first, U.S. will be just wasting money and time, and get even further behind. Wouldn't it be great if U.S. spent money on fixing these 3 instead of Ukraine? A lot of good paying jobs for the Americans.
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  32.  @DubhghlasMacDubhghlas  ''With the US made patriot battery of ADA, hypersonic missile is just a faster than average missile, ...'' Zircon max speed Mach 9 Patriot max speed Mach 4.1 It's a little faster than average missile, in fact, twice the speed of Patriot. ''If it can be tracked with a radar it can be shot down.'' What if it is equipped with multi band spectrum stealth coating? ''Speed doesn't mean that it can't be tracked or shot down.'' No, it depends on the distance to the hypersonic missile, the closer the hypersonic missile, the harder to track and intercept. Not only that it also depends on how maneuverable the hypersonic missile is, both in speed, and vector. The weakness of most hypersonic missiles today, including Zircon is that the speed is not variable, but constant once it reaches the hypersonic stage, still very fast. ''The high speed of the Zircon likely gives it better target-penetration characteristics than lighter subsonic cruise-missiles, such as Tomahawk. Being twice as heavy and almost eleven times as fast as Tomahawk, the Zircon has more than 242 times the on-cruise kinetic energy of a Tomahawk missile (≈9 gigajoules, or equal to 2,150 kg TNT explosive energy). Its claimed Mach 9 speed would mean that it cannot be intercepted by existing missile defence systems, and its precision would make it lethal to large targets such as aircraft carriers.[53][54]'' Also, there is another weakness to not only Zircon, but all hypersonic cruise missiles, the inability to use radar, IR seeker or anti-radar jamming technology against the enemy radar guided missiles, due to its extreme speed, once the hypersonic speed is reached. ''Zircon can travel at a speed of Mach 8 (6,100 mph; 9,800 km/h; 2.7 km/s). This has led to concerns[neutrality is disputed] that it could penetrate existing naval defense systems.[55] Because it flies at hypersonic speeds within the atmosphere, air pressure in front of it forms a plasma cloud as it moves, absorbing radio waves and making it practically invisible to active radar systems (plasma stealth).[56] However, this also blinds any radar or IR seeker on the missile. With plasma stealth, hypersonic-speed and sea skimming technique, intercepting a flying Zircon is extremely difficult, if at all feasible at the current level of technology. The final section of the trajectory is completed in minimal time (under 10 seconds), so the enemy will likely not have time to carry out all the necessary procedures to intercept it.[57] Zircon exchanges information in flight and can be controlled by commands if necessary.[58]'' But ROK has developed its own hypersonic cruise missile, hycore. Its unique advantage over Zircon is that ROK has perfected reliable way of turning on/off on the ramjet/scramjet hybrid engine on demand, in real time, once the engine has been ignited, during mid flight. It therefore, could vary its speed, making the interception that much more difficult than even Zircon, more maneuverable, and with the ability to 'glide' between on, and off phase, and extending the range as much as 400% of Zircon, and the ability to use radar and its sonar based anti-radar jamming technology during sub hypersonic phase, for accurate tracking of the target, and rendering the enemy radar useless, and once close enough, going for hypersonic speed to the target. It will also be equipped with multi-band spectrum stealth coating, against both radar, and infrared, making the missile not only stealth, but also radar-lock 'proof'/resistant, even if the enemy radar somehow detects it, they won't be able to 'lock' it.
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  55.  @icecold9511  ''First, only the US currently has any stealth missiles.'' You mean, no country currently has stealth missile, including U.S.? ''And the very nature of hypersonic missiles creates intense heat. The aerodynamics of hypersonic are at odds with stealth. Hypersonic is not some pixie dust magic weapon.'' It's about to change due to very recent breakthrough. You can google, hahn jae won, stealth coating, or jae won hahn, stealth, and look for Yonsei or nature article. ROK military channels confirmed ROK AF is going to be applying the stealth coating to hycore, hypersonic, stealth, cruise, smart missile. It will be stealth against radar, infrared, and will feature active camo, blending with the ambient visual background. ''It is loud and proud.'' Anything above Mach will be LOUD. ROK recently advanced ramjet/scramjet engine technology even above the Russian Zircon. The ability to turn on/off the engine, on demand, in real time, after the engine has been ignited, in mid flight. This way it can extend the range as much as 400% of Zircon. The hycore missile could reach a speed, so that by the time it enters the enemy AD zone, it would be slightly below Mach, still very fast, and stealth against radar, infrared, and visual detection, as well. ROK military channel also confirmed ROK had developed sonar based radar jamming technology. All it said was it tested successfully against all radars, including the AESA radar on F-35. ROK had to get permission from Lockheed Martin to test it. No know countermeasures worked against it. But so far I couldn't find any patents, or even the name of the inventor. I think ROK wants to keep this as the top secret, not to be shared with anyone. All I know is that after the announcement of this radar jamming technology, soon Saudis, and Egypt made a formal tender, and UAE, Poland, and UK want to be partners of KF-21. LM wanted co-production deal but ROK refused. I will try to find out more about this jamming technology. So far it only works point to point, one fighter jet against another fighter jet. ROK wants to advance it so that it would work point to multi-point, or even an entire network.
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  76.  @aaronleverton4221  ''Yeah, you keep spamming that "sonar-based, anti-radar jamming technology" and lasers as if they are already deployed in the field and I'm the Star Wars kid?'' Ok, finally you show me you're interested, why didn't you say so in the first place? ''I rely purely on open-source and historical data, not speculative fiction, but, hey, at some point in this "discussion", you'll have something of substance to say.'' I rely on ROK military channels in a lot of technology, international military deals, because I found them to be far more reliable than any other sources, including this channel. But for some reason, whenever I post a link, they keep getting deleted, so you're going to have to google yourself. Unfortunately, for you, to understand, ROK military channels, you have to understand Korean, yt translation is worthless. There's no English source on sonar based anti-radar jamming technology right now; it's a breakthrough technology, very recent, just a few months old confirmed in ROK military channel. VLT, or virtual laser turret is to be mass deployed by 2035 on KF-21, by then, the laser will be far more powerful than now, and will be able to 'slice and dice' at close dog fight range. Again, no English source at present. But there are other areas of stealth coating technology where the international patents have been filed fairly recently, you can google yourself, and see for yourself how credible they are, in English. Just google, jae won hahn, stealth He's the scientist who has come up with, very recently, to be adopted by ROK AF, for stealth coating on KF-21 to be mass produced using FASS, again, world exclusive mass production technology for assembling fighter jets; 8 times faster than the traditional methods. FASS (Fuselage Automated Splice System), look for The Korea times article. This stealth coating is far superior to the stealth coating on F-35, both performance, and durability. You see, every time F-35 hits Mach, it has to be inspected, and the coating reapplied, very expensive and time consuming, good for Lockheed Martin, bad for U.S. military, and the tax payers. Canadian AF are not happy; Canada gets cold and cold air are dense, increasing the friction, on the air frame; F-35s can't even maintain the stealth sub Mach. The stealth coatings to be applied at KF-21 are one time application, good for the lifetime of the frame. Initially it was slightly inferior to the stealth coating on F-35, but after steady increase in performance, now it equals the performance against radar, and expected to exceed even F-22 eventually. Operating cost of KF-21 can be as low as 10% of F-35, depending on the Mach use, and the distance to the nearest authorized U.S. service center. But there are more. KF-21 stealth coating is also stealth against infrared sensors. Yes, engine provides heat, but there are ways to decrease the heat signature from the engine, or even turn off the engine temporarily, and glide. It also makes KF-21 'slippery', making the plane far more resistant against 'radar-lock', making the enemy's VBR radar guided missiles basically useless. Other application includes active stealth camo that can be used on MBTs, even infantry uniforms. As for sonar based anti-radar jamming technology, I couldn't find any source in English, it is so new, and considered top classified. I only found out because ROK wanted to test it against AESA radar on F-35 to see whether it would disable the AESA radar on F-35, and ROK had to get permission from Lockheed Martin to perform the test. So ROK military channel got it without violating the law. There are no electronic counter measures against Sonar. Also, the AESA radar on KF-21 is far more reliable on hard use than the AESA radar on F-35, due to it being vibration resistant, and high heat stable, and far more survivable, due to modular construction, 70% of its capacity will work even when some of its components get damaged; AESA radar on F-35 will quit cold turkey, when just one component gets broken. But the game changer is its ability to focus on an image on the screen, and magnify it 20 fold, on demand, in real time, it can be even preprogrammed to auto focus on any image during patrol/recon mode. This way, if it sees an image that could be either a bird, a debris, or stealth plane, it can focus, and magnify 20 fold, to determine its nature. ROK had it tested by IDF, which was so impressed, that offered a co-production deal, but ROK refused, and offered the co-production deal with Leonardo of Italy. I think they want to sell them to ME, and Africa, to make them far less vulnerable to SEAD by 5th gen fighter jets. You can google leonardo of italy, hanwha. As for the credibility of ROK military channel, they had predicted Poland, K2 MBT deal, 2 to 3 years before being confirmed in any English source. Also, Saudis, UAE, and Egypt are officially making offers to buy KF-21s, very recently. MBS toured ROK defense research center last year, picked their brain, and was so eager to sign the deal, but had to wait till the commencement of mass production. Just google, Saudis, KF-21, UAE, KF-21, and Egypt, KF-21, all three very recent.
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  80.  @elswagmaster6992  '' well, they're combat capable stealth multirole fighters, there's just under 1000 of them, either fielded by the United States..'' Yes, the JSF! The concept was attractive, common platform, economy of scale, but too bad, the needs of USAF, USN, and USMC were too different from each other. ''..and sold in abundance around the world to America's allies.'' ... and do you realize many of those allies are not happy with F-35? ''The current loss ratio of the delivered platforms is less than 1%, ...'' The documented current loss ratio doesn't tell the whole story. Whenever you have a documented complete loss, you can assume it didn't happen in vacuum, but there had been 'shut downs' of many other F-35s before, for 'emergency maintenance', and most certainly after the documented loss. This reduces the potential available sortie rate for the squadrons. In war times, under hard use, this could easily result in the loss of air superiority, a No-NO! Just look at PRC; they, too, have had documented losses before, and still now. Wh'at would be percentage rate of loss, based on documented loss rate, not that bad. Probably not that much different from F-35s. Of course, PLA has been caught trying to hide an actual loss, but got caught by their own public, at least once. So their real loss rate could be quite higher than the documented loss rate. What about the downtime for their jets? I've read it's as high as 90%! Another word, up to 90% of their jets could be unavailable on demand, in real time. This is unacceptable in war times. (But Great for USAF/USN/USMC!), but is not shown by the documented loss rate. Similar for USAF/USN/USMC, they all tried to hide the real loss unless they knew they would get caught. The same with some of U.S. allies, such as Canada, for PR reasons. Canadian AF had one of their F-35s crash landed very recently, but I couldn't find any reference to it in English. I heard about it from ROK military channels, about Canadian AF VIPs visiting ROK to attend KF-21 demonstration/testing flights, and inquiring about purchasing, that they were not happy about their brand new F-35 crash landing, and their pilot getting blamed, but Treadu wants a good PR with U.S. ''over half of those being the much less common VTOL F-35B.'' Yes, it was misbegotten; F-35B should not have existed. ''Not meeting original goals doesn't make a project a failure,....'' .... then does it make a success? ''it isn't like they don't function or exist.'' If F-35s had functioned to the satisfaction of U.S. military, when why had Charles Brown gone out of way to claim F-35 is not suitable for the needs of U.S. military? You can google, ''The US Air Force Quietly Admits the F-35 Is a Failure''. ''Your criteria for failure being that it cost a lot of money, didn't meet original goals, and some were lost in accidents, applies to just about every fighter out there. If a B-2 were to crash tomorrow would that make the B-2's a failure?'' It's not just my criteria, but the criteria set by Charles Brown. the chairman of the Joint Chief of Staffs, ex-Chief of Staff of USAF. Can you name some fighter jets that cost a lot of money, did not meet the original goals that were/are considered success? ''Of course not.'' Are you saying F-35 is a success? ''Lemme ask though because you got me confused on the context of this, why are you rambling on about the F-35.'' Just because a weapons system shows promise on paper, doesn't necessarily mean it's going to be a success in the field, under hard use; I was using F-35 as the most recent and famous example, since there have been so many positive expectations of F-35s.
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  91.  @kylezdancewicz7346  ''I sadly can’t find anything about how the maintenance cost is divided, maybe you can have some better luck, because extremely specific information on advanced jets are hard to come by...'' Do you know why it is more expensive to maintain than others? 'Questions About Costs, Force Mix Could Spell Trouble for F-35A' Based on what I've found out from ROK military channels, basically 3 reasons why F-35 operating cost is so high. 1. Single engine, asked to do much, reduced durability and reliability, with more maintenance needed as a result. 2. Buggy software, and inferior QA than ROK AF. '''29 F-35 have crash and the F-35s have cumulative flight hour of 721,000 hours so about 25000 flight hours per crash. The average flight hours for a crash is 15000, make this plane insanely reliable.'' 'South Korea’s FA-50 Aircraft Achieves Remarkable 100,000 Accident-Free Flight Hours Milestone' 3. Fragile stealth coating: F-35 needs inspection every time F-35 hits Mach, and reapplication of the coating, cold weather making it even worse; why Canadian AF are not happy with F-35, and instead looking at KF-21. KF-21 stealth coating is metamaterial based permanent one time application during assembly. ''Bugs can be fixed and it’s Ew and computational abilities is still quite impressive.'' ...but it hasn't been fixed yet, and unlikely to change since USAF QA technology is no longer the state of art. Still ahead of PRC, but PRC has downtime of up to 90%, while F-35A is only 25 to 35 to 50%. 25% being ROK AF.
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  92.  @kylezdancewicz7346  ''Advancements take time and need to be incremented, .....'' I agree, but the implementation of aforementioned idea hasn't been smooth with F-35, with too much changes from the original concept in favor of passing fads. KF-21 has been done the way F-35 should have been done. ''..this was a very advanced plane when it was designed and was bound for bugs and problems.'' Too much introduction of unproven technology, with not enough QA. ''It’s still an advanced and cutting edge plane now, ....'' Not really; its stealth technology is about to become obsolete in favor of metamaterial based stealth technology of ROK. Its AESA radar has already been surpassed by the AESA radar to be implemented for KF-21, and FA-50 later versions; even IAI was impressed with the ROK AESA radars to the point they had offered software partnership with ROK, which declined in favor of Leonardo. ROK KF-21 AESA radar has been built with robust modularity, built in redundancy, far more than the AESA radar on F-35. It's designed to be far more vibration/shock, and temperature/temp change resistant than F-35 AESA radar. It is designed to retain about 80% capability even when some of the components malfunction. F-35 AESA radar shuts down 100% when just one component fails, and it is already far more likely to fail than KF-21 AESA radar. Not only it's about 20% more capable than F-35 AESA radar, but also it has a triumph card: The ability to focus on a dot on the screen and magnify it 20 fold, to discern whether it's a bird, or a stealth plane, in real time, on demand, can be even preprogrammed to activate automatically on its own on dots that have not been identified. It also has an ability to launch a2a missile as soon as the enemy fighter enters its radar coverage automatically, when preprogrammed in advance, depending on the mission, where the chance for the collateral damage is unlikely. Its stealth coating also includes not just against radar, but also IRST, and radar lock resistant, so even if the enemy fighter sees it first, and applies radar lock, it is likely to be slip. 'jae won hahn, stealth' KF-21 will eventually come with built-in autonomous option as well: Far less chance of 'pilot bottleneck'. ''...and is still a quite functional and effective plane.'' Just not the goal intended: JSF not. More of a SEAD specialist.
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