H-20 bomber (with H-X, JH-XX)

latenlazy

Brigadier
That's where radar stealth of JH-XX and the use of stand off missiles comes in...
Hence the points I made about needing greater kinematic performance in my response the your longer post.

On an 80 ton plane? Nope. But JH-XX shouldn't be expected to go supersonic with at full MTOW anyway, anymore than we would expect Su-34 to perform as well as it would with a full external loadout at its own MTOW
Hey, you brought up the 80 ton number, not me. (I've always thought 60 tons MTOW is more reasonable).

So on a <55 ton plane, I think it's plausible. That's especially important because that is the stealthy internal payload the plane would fly with in a high intensity mission.
Again, points about needing greater kinematic performance.

Ah but there's no need for JH-XX to fly at low altitude, because it's stealthy.
Tu-22M had to fly low to avoid early detection by high mast mounted radar and high flying carrierborne AEW. JH-XX OTOH can fly at higher altitudes while retaining the ability to avoid early detection by virtue of RF VLO (that's the theory in my mind)
You will probably need to fly at lower altitude to strike at naval targets. Against ground targets you should be fine, but naval air defences and movements are a different beast. It will help if targeting systems greatly improve (not out of the question), but for now I'd be skeptical.

And that happens to be the TOW I estimated for an stealthy, internal weapon bay only loadout for JH-XX! :O
You asserted an 80 ton plane, and then shaved 20 tons off it based on comparisons to some American planes. There's a much tighter discrepancy between loaded and max takeoff weights in Russian planes, so I'm not *entirely* sure that assuming you could reduce a 80 ton plane into a 60 ton plane while preserving worthwhile range and payload is reasonable. Not saying you did something wrong, but I'm dubious about that 20 ton difference. (I suspect the B-1B has such a huge difference between loaded and max because it is a bomb truck, and in a bomb truck configuration it wouldn't be able to dash anyways. If that's what you were going for then you're actually arguing for a 60 ton plane that can be converted into a slower non stealthy bomb truck). This argument would have gone quite differently if we talked about a 60 ton plane, but a 60 ton plane with the WS-10 is sitting that fence between worthwhile new capabilities and achieving the same outcome by other means for me. Furthermore, even 60 tons may fall short of the kinematic needs the plane would need if the points I asserted earlier about that are correct.
 
Last edited:

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
Hence the points I made about needing greater kinematic performance in my response the your longer post.

Okay, it seems like my post and your post went up at exactly the same time, so I didn't see it. I'll address it in a separate post subsequent to this one.

Hey, you brought up the 80 ton number, not me. (I've always thought 60 tons MTOW is more reasonable).

I think I should clarify -- I never expected the aircraft to be capable of the kind of optimal performance at 80 tons MTOW, rather I expected it for a internal only loadout.

that is to say, I see the 80 tons MTOW as when the aircraft is fully burdened with external ordnance, and it is not a loadout where we should expect the aircraft to be able to achieve the same kind of kinematic performance as for a 55 ton TOW loadout.


You will probably need to fly at lower altitude to strike at naval targets. Against ground targets you should be fine, but naval air defences and movements are a different beast. It will help if targeting systems greatly improve (not out of the question), but for now I'd be skeptical.

I disagree.
I believe that the reason low altitude flight is important is because it reduces the radar horizion range of the defending side's surface based radar... But the advent of AEW&C makes lower altitude flight much less important as it extends radar horizon to hundreds of km, and China's opfor ground and naval targets would both likely have AEW&C at their disposal for air surveillance and defense, so there is not much difference in mission profile if one wants to avoid early detection by AEW&C.

Thus, for a stealthy JH-XX, its detectability at low and high altitude would not substantially differ and I see no reason why JH-XX would have to resort to flying at lower altitudes for naval strike missions. This is a point of contention.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
You asserted an 80 ton plane, and then shaved 20 tons off it based on comparisons to some American planes. There's a much tighter discrepancy between loaded and max takeoff weights in Russian planes, so I'm not *entirely* sure that assuming you could reduce a 80 ton plane into a 60 ton plane while preserving worthwhile range and payload is reasonable. Not saying you did something wrong, but I'm dubious about that 20 ton difference. (I suspect the B-1B has such a huge difference between loaded and max because it is a bomb truck, and in a bomb truck configuration it wouldn't be able to dash anyways. If that's what you were going for then you're actually arguing for a 60 ton plane that can be converted into a slower non stealthy bomb truck).

That is exactly what I'm arguing for, and I was under the impression that it was a given, seeing as the MTOW of stealthy aircraft are typically significantly heavier than their "internal only" take off weight as MTOW includes external ordnance as well.

I described the plane as "80 ton MTOW" because that is what it is... I never suggested that it would conduct stealthy missions against high intensity opponents at the 80 ton MTOW, though I can understand why it could have been mistaken as such... I apologize for the confusion, but I also think it was kinda obvious.


This argument would have gone quite differently if we talked about a 60 ton plane, but a 60 ton plane with the WS-10 is sitting that fence between worthwhile new capabilities and achieving the same outcome by other means for me. Furthermore, even 60 tons may fall short of the kinematic needs the plane would need if the points I asserted earlier about that are correct.

The "other means" part is a big unknown for me. At present I don't think China has any kind of asset that can do the job of JH-XX as I envision it, even if it is only using interim engines.
If in the next two decades, they are able to develop long range hypersonic cruise missiles, then obviously JH-XX would be made obsolete.

I disagree about being stealthy and at stand off would lower kinematic requirements. Today, if the mission profile dictates getting closer to your adversary, that now means increased vulnerability to supercruising interceptors.

I think we have different visions of what aerial strike against an advanced foe should look like.

The way I see it, all Chinese aerial strikes against advanced opposing forces with intact or semi intact air defences (including AEW&C, CAP, SAMs) must be done at stand off range, regardless of whether it is a non stealthy launch platform or a stealthy one.
There are little to no circumstances where a mission would require getting closer to a target behind well defended airspace.


Penetrating deeper compounds these problems because you're also increasing your egress distance.

I suppose this is a point of contention -- I do not see JH-XX (or any Chinese air based strike) to have the requirement to penetrate deep into enemy defenses when they are still intact.


When you deliver your ordinance and run you lose your stealth advantage because they will now know your approach vector, while going supersonic would increase your IR signature.

The ability of the opposing side to pursue you thus depends on how far away they are from you... which is why I believe penetration into well defended enemy territory would not be part of JH-XX's mission profile, and why I emphasize the almost non-negotiable requirement for strikes against defended enemy targets to be conducted at stand off ranges.


Kinematic requirements increase even further when you want to conduct strikes at lower altitude rather than higher altitude, which would have to be part of the consideration for the design if the interest is in striking naval targets.

As made clear in the last post, this is a point of contention where I believe flying at low altitude is not necessary for JH-XX to conduct naval strike.


There's no real analog to these specific capabilities, since the B-1 and Tu-160 are almost strictly high altitude for supersonic flight (more forgiving on T:W ratio), while the Tu-22's dash has never been tested to this extent since it's not stealthy (hence the Tu-22's better T:W ratio), so it would have never gotten that close against a modern air defence system anyways. While I won't refute the utility of having a design that can get close to an adversary without detection and then escape at supersonic speeds, I really wonder if you can get that deep and have enough speed and acceleration to escape without a better T:W ratio.

Again, I see JH-XX's stealth+supersonic design as not to allow it to penetrate a well defended piece of airspace, drop its payload, and then escape from that airspace, but rather to simply get to stand off range from that piece of well defended airspace, drop its payload well outside the defences of the airspace, and then turn tail and run before -- leveraging the stand off distance to not only allow the JH-XX itself to launch its payload without entering the range of the enemy's defences, but also to make it harder for the enemy to pursue them by giving JH-XX a headstart.


Mind that I'm not questioning whether a JH-XX with interim engines would be able to achieve good capabilities. I think it will. The question is whether it could achieve capabilities that would distinguish it enough from what the PLA already has in its arsenal. That's the difference between developing such a design with interim engines or waiting for more fitting ones.

I do not disagree with any of this, and I've basically said similar things in previous posts, acknowledging that we just don't know enough to make an informed call.
 
Last edited:

latenlazy

Brigadier
I disagree.
I believe that the reason low altitude flight is important is because it reduces the radar horizion range of the defending side's surface based radar... But the advent of AEW&C makes lower altitude flight much less important as it extends radar horizon to hundreds of km, and China's opfor ground and naval targets would both likely have AEW&C at their disposal for air surveillance and defense, so there is not much difference in mission profile if one wants to avoid early detection by AEW&C.

Thus, for a stealthy JH-XX, its detectability at low and high altitude would not substantially differ and I see no reason why JH-XX would have to resort to flying at lower altitudes for naval strike missions. This is a point of contention.
Your missiles won't have the same stealth advantage that your plane does. Unless you have some way of defeating aerial defense systems (jamming, higher speed, etc) firing at stand off distances reduces their pK. The whole point of getting in close though is to increase your pK. My point isn't about detectability of the plane, but the pK of your ordinance.

The "other means" part is a big unknown for me. At present I don't think China has any kind of asset that can do the job of JH-XX as I envision it, even if it is only using interim engines.
If in the next two decades, they are able to develop long range hypersonic cruise missiles, then obviously JH-XX would be made obsolete.
For naval strike, I think you could get the same result with dedicated AShBMs, or an operation that involved some assets picking off AWECs or providing escort while other assets focused on attacks. I would concede deeply nested ground targets, but dash is less important in those scenarios and other platforms could suffice (like the H-X)

The way I see it, all Chinese aerial strikes against advanced opposing forces with intact or semi intact air defences (including AEW&C, CAP, SAMs) must be done at stand off range, regardless of whether it is a non stealthy launch platform or a stealthy one.
There are little to no circumstances where a mission would require getting closer to a target behind well defended airspace.
You may be at stand off from air defences, but that does not mean you are too far away for interceptors.

I suppose this is a point of contention -- I do not see JH-XX (or any Chinese air based strike) to have the requirement to penetrate deep into enemy defenses when they are still intact.
Fair. That would mean we are envisioning different mission profiles for those capabilities.

The ability of the opposing side to pursue you thus depends on how far away they are from you... which is why I believe penetration into well defended enemy territory would not be part of JH-XX's mission profile, and why I emphasize the almost non-negotiable requirement for strikes against defended enemy targets to be conducted at stand off ranges.
But your original point was that a JH-XX can go in deeper than other planes. Even at stand off ranges, closer is closer, and thus closer to the threat of an interceptor. Realistically, you at least have to worry about interception the moment you launch your missiles, even at standoff distance, because even if you are too far away from their air defences you are not too far away from all their response options. Being closer increases the threat that you will be intercepted because you have to travel further to get back to a safe airspace and because you are closer to the interceptor. Hence the point about increased kinematics.

Again, I see JH-XX's stealth+supersonic design as not to allow it to penetrate a well defended piece of airspace, drop its payload, and then escape from that airspace, but rather to simply get to stand off range from that piece of well defended airspace, drop its payload well outside the defences of the airspace, and then turn tail and run before -- leveraging the stand off distance to not only allow the JH-XX itself to launch its payload without entering the range of the enemy's defences, but also to make it harder for the enemy to pursue them by giving JH-XX a headstart.

If I understood you correctly, the main point of your argument is that a JH-XX could hide from early warning systems to get a closer standoff distance than other planes. If that closer distance doesn't result in greater threat, then dash is an extraneous capability and stealth alone is enough. If it does, then you have to consider that deeper penetration=greater egress distance.
 
Last edited:

latenlazy

Brigadier
Apparently, I timed out my chance to edit?

Anyways, the last point I was trying to edit into my post was that if supersonic dash is an important requirement, then that means you have to be dashing from *something*. If you're trying to run away from something, then assessing distance and speed relative to that thing you're trying to get away from is crucial to survivability. Hence the point about being closer requiring greater kinematic capability.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
Your missiles won't have the same stealth advantage that your plane does. Unless you have some way of defeating aerial defense systems (jamming, higher speed, etc) firing at stand off distances reduces their pK. The whole point of getting in close though is to increase your pK. My point isn't about detectability of the plane, but the pK of your ordinance.

I think it would be easier to make one's stand off missiles more jam resistant, improve its seeker options and increase its stealth all to allow the missile to penetrate the opposing side's air defences, than having your entire launch platform having to not only penetrate the air defences but also have to return home.


For naval strike, I think you could get the same result with dedicated AShBMs, or an operation that involved some assets picking off AWECs or providing escort while other assets focused on attacks. I would concede deeply nested ground targets, but dash is less important in those scenarios and other platforms could suffice (like the H-X)

AShBM could definitely do part of the long range anti shipping job, however it has its limits in terms of detectability and I think is more reliant on supporting C4ISR for function, while JH-XX would have its own onboard active and passive sensors and would also likely be operating for medium to long range shipping instead, and possibly for targets smaller than carriers. I'd argue JH-XX and AShBM are slightly different, complementary anti shipping capabilities for different classes of opposing ships, at different range and with different supporting sensor infrastructure.
H-X is a future capability, and it will obviously have land attack missions as its primary missions and in that way it will overlap with our current hypothesized JH-XX, but I think its lower speed means egress would be more difficult if it were to conduct strikes against more well defended targets at the kind of standoff range we suggested for JH-XX before. Of course, H-X could compensate by carrying longer range stand off weapons, at which point it basically becomes a question of the difference in capability between long range stealthy LACMs launched from any kind of aerial or surface platform vs shorter stand off range LACMs launched slightly closer from an aerial platform.


You may be at stand off from air defences, but that does not mean you are too far away for interceptors.

Yes, but at stand off distances one would still have a better chance of getting away from interceptors during egress than if one was fleeing from deeper behind enemy defenses.


If I understood correctly, the whole point of your argument is that a JH-XX could hide from early warning systems to get a closer standoff distance than other planes.

Not exactly. I'm more saying that other planes (which currently exist in China's inventory) would be unable to get within standoff distance without being detected intercepted in the first place well before it reaches standoff launch distance, while JH-XX by virtue of stealth, can get within standoff distance without being detected and intercepted and launch its payload, then turn around and run.


If that closer distance doesn't result in greater threat, then dash is an extraneous capability. If it does, then you have to consider that deeper penetration=greater egress distance. Realistically, you at least have to worry about interception the moment you launch your missiles, even at standoff distance, because even if you are too far away from their air defences you are not too far away from all their response options. Being closer increases the threat that you will be intercepted because you have to travel further to get back to a safe airspace and because you are closer to the interceptor. Hence the point about increased kinematics.

Edit: Anyways, the last point I was trying to edit into my post was that if supersonic dash is an important requirement, then that means you have to be dashing from *something*. If you're trying to run away from something, then assessing distance and speed relative to that thing you're trying to get away from is crucial to survivability. Hence the point about being closer requiring greater kinematic capability.

I'm not sure if I'm misunderstanding you here. Are you saying that having the launch platform get closer to the target requires greater kinematic capability -- aka it needs to be able to accelerate faster and a higher top speed to get away from the opposing side's interceptors, compared to if a launch platform was further from the target, which requires less kinematic capability, relatively speaking?
If I'm reading you correctly... well all the above that you said is not anything I've ever really disputed, and I'm not too sure why you've brought this point up to my previous points about JH-XX using stand off weapons and its stealth... because stand off weapons and stealth are both meant to facilitate JH-XX's egress and reduce the need for excessively high kinematic capability necessary for a closer, "behind enemy defences" sort of strike. In other words, I recognize the limitations of JH-XX's kinematic capability (which would likely exist even if it used WS-15) for a close in "behind enemy defences" strike, and my solution is to avoid getting behind enemy defences in the first place by relying on stand off weapons to reduce the kinematic requirements during egress.

As for what JH-XX will be "dashing from" when launching from stand off distances, I think it is a prudent expectation for opposing AEW&C to detect JH-XX's brief spike in RCS during stand off weapon launch and for it to vector nearby CAP to pursue the JH-XXs. So JH-XX will be dashing from pursuing CAP, not dissimilar to how it would have to evade opposing CAP if it conducted a "behind enemy defences" strike, only that for a stand off strike, it would hopefully have more of a headstart or at the very least it won't have to face opposing CAP "head on" during egress and can lead them in a tailchase instead.
 

latenlazy

Brigadier
I think it would be easier to make one's stand off missiles more jam resistant, improve its seeker options and increase its stealth all to allow the missile to penetrate the opposing side's air defences, than having your entire launch platform having to not only penetrate the air defences but also have to return home.
Even with stand off distance, that's technically what you're proposing when you're suggesting a stealth plane that gets closer.



AShBM could definitely do part of the long range anti shipping job, however it has its limits in terms of detectability and I think is more reliant on supporting C4ISR for function, while JH-XX would have its own onboard active and passive sensors and would also likely be operating for medium to long range shipping instead, and possibly for targets smaller than carriers. I'd argue JH-XX and AShBM are slightly different, complementary anti shipping capabilities for different classes of opposing ships, at different range and with different supporting sensor infrastructure.
H-X is a future capability, and it will obviously have land attack missions as its primary missions and in that way it will overlap with our current hypothesized JH-XX, but I think its lower speed means egress would be more difficult if it were to conduct strikes against more well defended targets at the kind of standoff range we suggested for JH-XX before. Of course, H-X could compensate by carrying longer range stand off weapons, at which point it basically becomes a question of the difference in capability between long range stealthy LACMs launched from any kind of aerial or surface platform vs shorter stand off range LACMs launched slightly closer from an aerial platform.
Lots of ways you could skin this cat. I did say that a JH-XX would make some things simpler and more straightforward, but you balance the difficulty of doing it some other way, with the difficulty of developing something new, hence why I'm dubious about interim engines being a viable solution. I just don't think reduced performance from interim engines would offer enough delta in capability to prefer developing a new platform with its associated costs. (An opinion though, of course),

Yes, but at stand off distances one would still have a better chance of getting away from interceptors during egress than if one was fleeing from deeper behind enemy defenses.
I agree, but your egress distance is still increased, and your distance to the interceptor still decreased, which is why I argue that getting closer increases the need for better kinematics.

Not exactly. I'm more saying that other planes (which currently exist in China's inventory) would be unable to get within standoff distance without being detected intercepted in the first place well before it reaches standoff launch distance, while JH-XX by virtue of stealth, can get within standoff distance without being detected and intercepted and launch its payload, then turn around and run.
Hence the point about other methods to achieve the same outcome. You could also get within stand off distance without being detected by increasing the range of your missiles, attacking early warning systems, or using escorts.


I'm not sure if I'm misunderstanding you here. Are you saying that having the launch platform get closer to the target requires greater kinematic capability -- aka it needs to be able to accelerate faster and a higher top speed to get away from the opposing side's interceptors, compared to if a launch platform was further from the target, which requires less kinematic capability, relatively speaking?
Yes. That's what I'm saying.

This is something I've never really disputed, and I'm not too sure why you've brought this point up to my previous points about JH-XX using stand off weapons and its stealth... because stand off weapons and stealth are both meant to facilitate JH-XX's egress and reduce the need for excessively high kinematic capability necessary for a closer, "behind enemy defences" sort of strike.
I brought up this point because you said that stealth should decrease kinematic requirements. We both agree that stealth would allow the plane to get closer. However, you're also making the argument that stealth will make it easier to slip away quietly. I'm arguing that a function of getting closer reduces that ability to slip away quietly, which puts pressure on the plane to escape quickly. The scenario of current planes being intercepted before they reach stand off distance was brought up earlier. If interception is possible at further ranges, it's even more possible at closer ranges (even with stealth, because, as I said earlier, the act of launching your ordinance reveals your approach vector, which then allows your adversary to focus their search and interception efforts).

As for what JH-XX will be "dashing from" when launching from stand off distances, I think it is a prudent expectation for opposing AEW&C to detect JH-XX's brief spike in RCS during stand off weapon launch and for it to vector nearby CAP to pursue the JH-XXs. So JH-XX will be dashing from pursuing CAP, not dissimilar to how it would have to evade opposing CAP if it conducted a "behind enemy defences" strike, only that for a stand off strike, it would hopefully have more of a headstart or at the very least it won't have to face opposing CAP "head on" during egress and can lead them in a tailchase instead.
Yes! Dashing from pursuing CAPs, but because it's traveled deeper into enemy airspace, it is further from friendly airspace, which increases the importance of its kinematics. Furthermore, given the performance of future planes performing interceptor roles I don't see those kinematic requirements easing (supercruisers). I don't dispute that stand off distance will still give it a head start, but that head start is still smaller than planes who would still have to contend with the threat of interception at greater distances. Hence, again, the greater rather than lesser kinematic requirements. Remember, I brought this up relative to the Tu-22M and B-1B. I'm saying that a JH-XX used in the way we're discussing would require greater kinematics than those two because it will be getting closer to adversaries than those two, and thus would have a greater egress distance and more demanding acceleration and speed requirements to overcome the closer distance to intercept.

Phew, well I don't know about you, but I'm tired. I thought we covered a lot of interesting ground in this discussion. I'm okay with letting this one rest now.
 
Last edited:

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
Even with stand off distance, that's technically what you're proposing when you're suggesting a stealth plane that gets closer.

Technically I suppose that is what I'm saying, but practically speaking, the non-stealthy plane won't even be relevant because it can't even get to the stand off launch point to begin without being shot down.
Putting it another way, both the stealthy plane and the non-stealthy plane both have the same requirements in this case -- to get within X range of a target to launch one's weapon. The stealthy plane can do it, while the non-stealthy plane simply cannot even get close to begin with.

[edit: this is the post where I finally understand what you mean by "greater distance... I address everything fully in the second half of this novel of a reply]


Lots of ways you could skin this cat. I did say that a JH-XX would make some things simpler and more straightforward, but you balance the difficulty of doing it some other way, with the difficulty of developing something new, hence why I'm dubious about interim engines being a viable solution. I just don't think reduced performance from interim engines would offer enough delta in capability to prefer developing a new platform with its associated costs. (An opinion though, of course),

It really depends on how long the aircraft would have to use interim engines for imo.


I agree, but your egress distance is still increased, and your distance to the interceptor still decreased, which is why I argue that getting closer increases the need for better kinematics.

I address this in greater detail below, but the key point when I said JH-XX's stealth reduces the need for kinematics during egress compared to a non-stealthy aircraft, is that both aircraft would be conducting egress under the same hypothetical conditions. That is obviously the only fair way to measure "ability to conduct egress", and I was under the assumption the only way in which my comparative statement would have made sense...

In other words, you're saying that the stealthy aircraft would have longer egress distance while the non-stealthy aircraft would have shorter egress distance, which is problematic because the operating assumption/requirement is that both aircraft need to get within an equal distance of the target in the first place to field the same ranged weapon and thus meaning both have equal egress distances (with the scenario being that the non-stealthy aircraft reached stand off range successfully undetected somehow).


Hence the point about other methods to achieve the same outcome. You could also get within stand off distance without being detected by increasing the range of your missiles, attacking early warning systems, or using escorts.

I would hazard to interpret "using other methods to achieve the same outcome" in a very loose way... One could technically send a fleet of fighters to engage the other side's CAP to allow one's non-stealthy strike aircraft to successfully get into stand off range to launch a strike, but the risk and potential losses associated with that is also significantly higher.

I think that statement should only really apply for when the costs and risks of both methods to achieve the same outcome are similar.


Yes. That's what I'm saying.

I brought up this point because you said that stealth should decrease kinematic requirements. We both agree that stealth would allow the plane to get closer. However, you're also making the argument that stealth will make it easier to slip away quietly. I'm arguing that a function of getting closer reduces that ability to slip away quietly, which puts pressure on the plane to escape quickly. The scenario of current planes being intercepted before they reach stand off distance was brought up earlier. If interception is possible at further ranges, it's even more possible at closer ranges (even with stealth, because, as I said earlier, the act of launching your ordinance reveals your approach vector, which then allows your adversary to focus their search and interception efforts).

Okay, I think I understand what you're saying now, and I'll rephrase what I meant for greater clarity.
When I say stealth would allow the JH-XX to get closer to the target (aka standoff launch distance) without being detected, that is relative to a non stealthy aircraft.
When I say stealth would allow the JH-XX to have lower kinematic requirements during egress, that is also relative to a non stealthy aircraft doing engress from the same standoff launch distance. In other words, if JH-XX and a non-stealthy aircraft both managed to successfully reach stand off distance undetected and launch their payloads, and then both were detected, JH-XX's stealth would allow it to egress easier with lower kinematic demands compared to a non-stealthy aircraft which would have to rely on kinematic capability more to escape successfully.


Yes! Dashing from pursuing CAPs, but because it's traveled deeper into enemy airspace, it is further from friendly airspace, which increases the importance of its kinematics. Furthermore, given the performance of future planes performing interceptor roles I don't see those kinematic requirements easing (supercruisers). I don't dispute that stand off distance will still give it a head start, but that head start is still smaller than planes who would still have to contend with the threat of interception at greater distances. Hence, again, the greater rather than lesser kinematic requirements.

I'll make another comprehensive statement about why I say stealth means JH-XX would have to rely less on kinematics during egress:
During an egress of equal distance from opposing pursuing CAP (where the distance between CAP and the launch aircraft, and every other physical relation to each other is also equal), a stealthy aircraft can have lower kinematic requirements to successfully escape the pursuing CAP, while a non-stealthy aircraft has higher kinematic requirements to successfully escape the pursuing CAP.

In other words, when I say that JH-XX can rely on stealth as a factor to reduce its kinematic requirements compared to a non-stealthy platform, it is comparing both under the same starting line of when egress begins.
If I were to describe it as a scenario, it would be to imagine two alternate universes, one where JH-XX manages to get into stand off range of a target undetected, and one where the non-stealthy platform also manages to get into (the same) stand off range of the same target undetected (somehow it manages it despite being non-stealthy), and both successfully launch their payloads at which point both are detected and have CAP vectored onto them (with the same parameters of CAP for both JH-XX and the non-stealthy striker; same number of fighters, same loadout, same distance from each aircraft). Thus, I am saying that JH-XX, by virtue of its stealth, may not need to travel as quickly as the non-stealthy aircraft to successfully evade its pursuers, while the non-stealthy aircraft would need higher brute speed to successfully evade its pursuers due to lacking RF stealth.

Of course, in real life, the non-stealthy aircraft would likely not be able to reach stand-off range successfully even to begin with, but that doesn't mean that the egress scenarios for both non-stealthy and stealthy aircraft should not be the same, given we are trying to assess their requirements for successful egress alone.


Phew, well I don't know about you, but I'm tired. I thought we covered a lot of interesting ground in this discussion. I'm okay with letting this one rest now.

I'd be interested in clarifying the greater vs lesser kinematic requirements thing WRT stealth. I think that was a bit of miscommunication on both our parts.
 
Last edited:

latenlazy

Brigadier
I'd be interested in clarifying the greater vs lesser kinematic requirements thing WRT stealth. I think that was a bit of miscommunication on both our parts.
My point is greater kinematic requirements relative to a B-1B or a Tu-22M, not greater kinematic requirements compared to say a J-16.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
My point is greater kinematic requirements relative to a B-1B or a Tu-22M, not greater kinematic requirements compared to say a J-16.

Yes, what you said fully was "I'm saying that a JH-XX used in the way we're discussing would require greater kinematics than those two because it will be getting closer to adversaries than those two, and thus would have a greater egress distance and more demanding acceleration and speed requirements to overcome the closer distance to intercept."

My original statement (as I've outlined in my previous reply) about JH-XX having lower kinematic requirements due to its stealth, compared to a non-stealthy aircraft, is under the assumption that both would be attempting to make egress under the exact same conditions.

So, I think what you were really saying is that if an aircraft is closer to adversaries/experiences greater egress distance, then it requires greater kinematic capability to successfully make egress -- which I agree with. Quite a simple proposition, and now that I understand what you mean by suggesting it I can say I absolutely have no problem with it.

However, what I was originally saying is that if two aircraft (one stealthy, one non-stealthy) were to make egress under the same starting conditions (same distance from adversaries, same egress distance overall), the stealthy aircraft could afford to have lower kinematic capability to successfully conduct egress compared to the non-stealthy aircraft which would need greater kinematic capability, as its stealth would make it more difficult to pursue to a degree, which the non-stealthy aircraft doesn't have the benefit of.
 
Top