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

iBBz

Junior Member
Registered Member
I believe that such design considerations (primarily) stem from concerns regarding the length of the internal weapons bays (IWB) of the H-20, as the simpler flying wing designs of the B-2 and B-21 with leading edges that are at shallower but uniform angles leading away from the nose of the aircraft means a shorter overall length of the aircraft itself, resulting in only IWBs that are shorter in length being viable.

Hence, it is likely that such a cranked-kite/beaked design is meant to mitigate such downsides by offering a longer airframe that is able to fit longer IWBs, with the leading edges of the wings initially having a steeper angle leading away from the nose of the aircraft, where the angle gradually becomes shallower as the leading edges get much further away from the nose of the aircraft.

View attachment 142295

Such designs could bring at least certain degree of negatives to the VLO characteristics of the warplane itself, as there are more irregularities of the shaping of the warplane itself when subject to enemy radar waves.

But then, if the PLAAF doesn't strongly demand the H-20 to perform missions that would require penetrating very deep into peer enemy-controlled airspaces with integrated enemy air defense networks and without allied support, and is content with (mostly) lobbing standoff missiles (including ALBMs and even AL-HGVs) from extended distances against the enemy, then such tradeoffs may be deemed acceptable to the PLAAF.

Of course, what I've explained above has no bearing on what the H-20 would eventually look like. The PLAAF knows the best on what they actually want from the H-20, and Xi'an AC will produce the H-20 strictly per the PLAAF's instructions.
Well if they want a longer weapon bay for a given wingspan, why go for a flying wing and make it crooked? The flying wing was incredibly difficult to perfect and the Americans struggled with tens of prototypes and many decades going from the XB-35 to the RB-49 to the B-2, so to go for that then ruin it like in the photo makes no sense to me. A better solution is to go for something like that NGB concept that was cancelled in 2009, which is a conventional chined fuselage with VLO features.
 

dingyibvs

Senior Member
I have no doubt that the H20 will likely have a insane amount of EW and sensors, turning it into a stealthy AWACS. The issue is that the J36 is already a stealthy AWACS so again, their roles are overlapping a lot. Hence why I think the size is what will make the H20 stand out from the J36.
If it were designed as a B2 competitor then I'd imagine it'd be much larger than the J-36, but not much larger than the B2. With 4 engines and more focus on electricity generation it'd be a weight class higher than the J-36 in terms of the EW equipment it can carry and power.

It could then provide EW cover for a fleet bombers e.g. GJ-11s. Or, to continue the naval analogy, it could also have an "Air Cruiser" variant providing theater aerial detection and anti-air defense for non-stealthy AWACS, tankers, transporters, etc. It would then use its bomb bay to carry loads of AA missiles designed to shoot down incoming missiles at longer range than just for self-defense.
 

AndrewS

Brigadier
Registered Member
If it were designed as a B2 competitor then I'd imagine it'd be much larger than the J-36, but not much larger than the B2. With 4 engines and more focus on electricity generation it'd be a weight class higher than the J-36 in terms of the EW equipment it can carry and power.

It could then provide EW cover for a fleet bombers e.g. GJ-11s. Or, to continue the naval analogy, it could also have an "Air Cruiser" variant providing theater aerial detection and anti-air defense for non-stealthy AWACS, tankers, transporters, etc. It would then use its bomb bay to carry loads of AA missiles designed to shoot down incoming missiles at longer range than just for self-defense.

Just bear in mind that AAMs launched from a supersonic platform will have more range than from a subsonic plane.
 

FairAndUnbiased

Brigadier
Registered Member
@zyklon @Biscuits @kurutoga

I agree with you guys. Although I am a random shitposter, I've made a relatively accurate guess of the Chengdu advanced aircraft that just flew in this very thread. I think this gives me at least 1% credibility.

China has shown that it has its own doctrine and shapes technology around doctrine rather than throwing the biggest numbers at the wall. Historically, Chinese have regarded doctrine as more important than tech alone. While some call that a 1950's cope, it isn't. Recent developments show this.
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- yeah it's good... so what's it good at? Oh, shore bombardment...

As outsiders we only see the tip of the iceberg is but it is clear that speed and flexibility is a requirement. A very expensive manned plane has to do something that another asset cannot do. It has to be able to conduct organic recon, networked to other assets, attack moving targets, etc.

Based on the guessed doctrine, let me propose this set of observable characteristics with explanations:

1. 4 afterburning WS-15 for ~640 kN thrust
2. Topside intakes. Presents flattest possible bottom for lower RCS and largest contiguous weapons bay.
3. Tailless blended body delta. Supersonic performance to Mach 2.
4. ~110k kg MTOW, ~100k kg GW, ~50k kg empty. TWR (rel. GW) of ~0.65, typical of strikers like the F-111 and Su-34 that attack defended targets
5. ~35 m length total. Typical strikers are ~30000 kg GW per m of aircraft length accounting for ~5 m engines.
6. ~10 m length weapons bay. For advanced strike munitions like hypersonic cruise missiles and aeroballistic missiles.
7. Visible bottom facing IRST windows for an integrated targeting turret.

I'd call it a stretched, enlarged, strike specialized J-36. I think the combination of VLO and supersonic flight would provide for a very survivable aircraft. It also reduces development cost as the basic concept and subcomponents are proven and only validation work is required, rather than conceptual and subcomponent level design.

This is just my guess. We'll see right?
 
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dingyibvs

Senior Member
@zyklon @Biscuits @kurutoga

I agree with you guys. Although I am a random shitposter, I've made a relatively accurate guess of the Chengdu advanced aircraft that just flew in this very thread. I think this gives me at least 1% credibility.

China has shown that it has its own doctrine and shapes technology around doctrine rather than throwing the biggest numbers at the wall. Historically, Chinese have regarded doctrine as more important than tech alone. While some call that a 1950's cope, it isn't. Recent developments show this.
Please, Log in or Register to view URLs content!
- yeah it's good... so what's it good at? Oh, shore bombardment...

As outsiders we only see the tip of the iceberg is but it is clear that speed and flexibility is a requirement. A very expensive manned plane has to do something that another asset cannot do. It has to be able to conduct organic recon, networked to other assets, attack moving targets, etc.

Based on the guessed doctrine, let me propose this set of observable characteristics with explanations:



I'd call it a stretched, enlarged, strike specialized J-36. I think the combination of VLO and supersonic flight would provide for a very survivable aircraft. It also reduces development cost as the basic concept and subcomponents are proven and only validation work is required, rather than conceptual and subcomponent level design.

This is just my guess. We'll see right?

I do like that and have been advocating for it for years, but that wouldn't be the H-20 though. You can't convert a subsonic flying wing into something like that, it'd have to be designed from the ground up as a supersonic striker.

Post in thread 'China Flanker Thread II' China Flanker Thread II
 

FairAndUnbiased

Brigadier
Registered Member
I do like that and have been advocating for it for years, but that wouldn't be the H-20 though. You can't convert a subsonic flying wing into something like that, it'd have to be designed from the ground up as a supersonic striker.

Post in thread 'China Flanker Thread II' China Flanker Thread II
I think the reason the H-20 is being delayed for so long is because they looked at the CAC plane and went back to the drawing board. I would be surprised if a flying wing is going to be selected as the final H-20.
 
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