I see your point. But my question remains: why bother with stealth UCAV? If SAM can take care of those things, problem is solved, isn't it? If SAM can't handle them, then they must be really good.
Maybe swarming China with these things will be the ultimate goal: no human casualties, cheap to mass produce.
Aside from making its own stealth drone, what type of weapon in the present or future China inventory that can deal with this type of threat?
Does "stealth" mean that no Chinese radar, Early Warning Aircraft or anything like that can detect it? Are they that elusive or magical? Why is US media so optimistic about this weapon?
I mean, when you are optimistic about something, it must be that you don't see how your opponent can do anything about it, right?
And, if your scenario happens, China will take heavier blow. Look, Chinese UCAV can only attack Hawaii, but X-47B can attack Mainland Chinese.
If I am a US commander, I will swarm China with this. I sacrifice Hawaii only, but I can destroy all critical infrastructures in mainland China.
Reasonable logic, is it?
Well let's put it this way... first of all let us assume nukes and ICBM does not exist, otherwise this whole discussion is moot, as soon as US inflect any signification damage to China, or China inflect any significant damage to US no one can predict when will ICBM start flying and kill 1/4 of world population. Let's assume there is no nuclear weapon.
As for stealth, I think you misunderstand what it is, stealth does not mean 100% invisible on radar, stealth only means you detect the aircraft at closer range. Any jet fighter can pick up F-22 on radar if they are close enough. And when you want to use massive X-47B to attack China, trust me.... you will see a wall of radar reflection back on your screen, and yes, they will be detected well before they reach China. That article is not stupid enough to suggest that waves and waves of invisible X-47 will turn China into ruins overnight, the main emphasis is on the range of the drone than anything else.
Next, let's examine flight time, so you are saying US will park carrier 4000+ miles off Chinese coast and send swarms and swarms of suicide X-47B attacking China. I said "suicide attack" because it will be logical to assume that a lot of X-47B can reach mainland and release their payload, but most of the X-47 will not come back. Because open sources states that X-47B's cruse range is Mach 0.45, now go do some calculation on if the drone is flying at mach 0.45, how long will it take to fly over 4000 miles? It is going to take 11 hours, I'm pretty sure they will be detected well before they get anywhere close to China, that means a lot of them will get shot down, but if the drones are lucky they can release their payload 100+ km away from the target so they can still inflect some damage, but that will give China plenty of time to detect it incoming and leaving, so most of it will get shot down.
Your next assumption is that the attack is one sided, so if China can detect massive X-47 launch well before it reach mainland, what is to stopping China from launching their own massive waves of X-47 targeting the US carrier? And of course the same logic applies, most of the drones will get shot down, but some of them will get to release their payload and sink the carrier. So if you are the US commander are you going to take the trade off?
Your next assumption is that only US will have carrier parked in the middle of pacific, I think it is safe to say the day X-47B gets mass development will take at least 20-30 years. So it is also safe to assume by the year 2030-2040 China will have at least half a dozen carrier on their own, so if you think US will launch suicide X-47 on China, what is stopping China from launching suicide drones on California?
And lastly going back to my previous point, it takes X-47 over 10 hours of flying time, by the time it reaches China a lot of it will get shot down, so have you took a look at China lately on the map? If you do, I'm pretty sure it will take more than 1 waves of suicide drone attack on China to cripple it, so it is impossible to kill China in one blow unless you use nuclear weapons which we assume the world does not have for this discussion. And I will also assume that this X-47 suicide attack is gong to be Pearl Harbor style surprise attack on China, and the worst thing about surprise attack is... you only do it once, and it is impossible to cripple an entire nation base on a surprise attack, US can't do it to Vietnam or Iraq or Syberia, what are the chances they can do it on China? Once the surprise is over... the real war starts. will US commander risk that?
Or you can argue that US indeed can pull off one massive surprise drone attack that is powerful enough to cripple China in one stroke, but in order to do this, you will need more than 1 or 2 or 10 carriers, you would need 100 carriers each loaded with 150+ drones. I'm pretty sure this is impossible, and if US did have 100 carriers parked in one spot, trust me Chinese spy satellite will be watching them 24/7 so they can't be a surprise anymore. And if US have 100 carrier, I'm pretty sure China will have have 50 parked in range of California. As soon as US launch the drones China will do the same to US.
So again... you are making the falsely that US will do this... do that... and it will win. Next time before you ask something, ask yourself, if US can do it, what is preventing other nation from doing the same thing?