US vs. China: B-21 and new American ICBM

[Martian2]

Sputnik says it doesn't know the details of the new American B-21 (successor to B-2) stealth bomber and land-based ICBM.

Eagle's Claws Blunted: What's Driving US Effort to Modernize Its Nuclear Arsenal | Sputnik (February 1, 2018)
"'We do know that the Pentagon plans to commission the new B-21 Raider – an evolution of the B-2 bomber program, by 2025. Like the B-2, this plane will be developed according to the flying wing scheme, and will use low radar visibility technology. According to the US military, the plane's main tasks revolve around operation in the probably enemy's depth, and to break through enemy air defenses.' In short, 'it remains uncertain whether Congress will approve the program. Each B-2 has cost US taxpayers over a billion dollars. It's clear that new, more sophisticated bombers will be even more expensive.'

'Even less is known about the prospective ground-based ICBM,' according to Kotz. In August 2017, the Pentagon signed contracts with Boeing and Northrop Grumman for the development of technologies necessary for a new generation of ICBMs. The total outlays of $677.8 million are just a fraction of what the Pentagon's office of Cost Assessment and Program Evaluation estimates will end up being an $85 billion program."
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I will state my guesses for both proposed American weapon systems.

The B-21 has a flying-wing design like the current B-2. However, it will probably incorporate electronic warfare (EW) equipment. The designers will try to make the B-21 stealthy across more radar wavelengths if possible. Finally, the B-21 may incorporate "active stealth." It might emit radar waves that are 180 degrees out of phase with an enemy emitter to cancel out the incoming radar waves.

Regarding a new land-based American ICBM, the problem is obvious. China has a ground-based interceptor (GBI) missile that can shoot down incoming ICBMs.

A new American ICBM warhead will have to fly a flatter and more unpredictable trajectory. Hence, a thermonuclear warhead mounted on a hypersonic glide vehicle (HGV) is one option. Another possibility is to mount thermonuclear AMaRVs on a new ICBM. Advanced MaRVs can disperse and fly flat trajectories to their targets.

 

[Menthol]

From what I know, USA is planning to wipe out almost all Chinese people into extinction.

USA feel they can't compete with the Chinese, which is why they prefer to wipe it out rather than compete with the Chinese forever.

It is very similar how Hitler wipe out European Jews during WW2.

Why do you think that nuclear weapons is not for targeting huge populated area? That has nothing to do with the military.

 

[Martian2]

Future US Air Force: B-21 and B-52 bombers. Current B-2 and B-1 bombers to be retired.

The US Air Force says it wants to retire B-2 and B-1 bombers as soon as possible.

Venerable B-52 May Outlive Snazzier, Younger Bombers | NewsMax (February 12, 2018)
"Air Force Secretary Heather Wilson announced Monday that her service will begin retiring the B-1 and B-2 fleets as soon as it has built enough B-21s, the next-generation bomber that is still on the drawing board and is expected to begin entering service in the mid-2020s."
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Both the B-52 and B-1 bombers are not stealthy. Though the B-1 can fly supersonically, it can be shot down by faster missiles. Thus, retaining the higher bomb-capacity B-52 makes sense. Either the US has control of the airspace or it doesn't. If the US has battlespace control, the B-52 can drop more bombs per sortie.

However, retiring the B-2 seems like an odd choice. The B-2 is stealthy. So, why is it being retired?

The B-2 uses the same old-generation stealth technology as the F-22. The B-2 requires specialized hangars to reapply its stealth coatings. If China wants to eliminate the B-2, a simple attack plan is to destroy the specialized hangars on Guam. By eliminating the specialized hangars, the B-2 stealth coating cannot be maintained.

Thus, the proposed NEW B-21 American stealth bomber will most likely have baked-on stealth like the J-20, J-31, and F-35.

Old-generation stealth aircraft like the F-22 and B-2 become nonstealthy when the other side destroys the special hangars required to reapply the stealth coatings.

If you are wondering why the United States refuses to restart the F-22 production line, it is because the F-22 and the B-2 both have a fatal flaw. Chinese satellites and drones can easily and quickly identify the special hangars for stealth maintenance. A few waves of MIRVed missiles will destroy the special hangars. The F-22 and B-2 are no longer stealthy in X-band and upper S-band radar wavelengths in future battles.

New hangars establish bomber deployment option | U.S. Air Force (December 17, 2004)

"Officials at Royal Air Force Fairford, England, recently unveiled two climate-controlled permanent hangars specifically designed for the B-2. The new 50,000-square-foot facilities allow specialized low-observable-surface maintenance to be performed.
...
The maintenance is essential to maintaining the specialized coatings that cover the aircraft’s composite and metal skin. Applying these coatings, and ensuring they cure correctly, must be done in a climate-controlled environment, said Master Sgt. Brian Tobin, of the 509th Maintenance Squadron."

 

[Menthol]

What does b21 look like?

Does someone have the photo of it?

 

[Martian2]

What does b21 look like?

Does someone have the photo of it?

It has to be a flying wing (due to physics) to travel long distances.
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The U.S. Air Force has revealed the first image of its future Long Range Strike bomber: the B-21 | The Aviationist (February 26, 2016)

"On Feb. 26, Air Force Secretary Deborah Lee James revealed the first artist rendering of the Long Range Strike Bomber, an aircraft built by Northrop Grumman and designated the B-21, at the Air Force Association’s Air Warfare Symposium in Orlando, Florida.
...
In particular, the aircraft seems to be designed around a standard flying wing."

 

[Menthol]

Looks like b2.

 

[Martian2]

Looks like b2.

The stealth shape is the same, but the specifications are different.

1. Stealth coating is probably baked-on. This avoids the need for specialized temperature and humidity control hangars.
2. Probably includes more on-board electronic warfare equipment.
3. Probably includes more composites to reduce radar reflections.
4. Could include "active stealth" of emitting radar waves 180 degrees out of phase to cancel incoming radar.

These are my guesses.

 

[Maarkhoor]

What does b21 look like?

Does someone have the photo of it?

As per Global Security it looks like this.

 

[Martian2]

As per Global Security it looks like this.

I think Global Security is wrong.

Those giant vertical stabilizers vastly increase the side-stealth profile of the bomber. It is far less stealthy than a flying wing design.

With J-20 squadrons flying combat patrols, the Global Security bomber would be easily detected as radar bounces off the vertical stabilizers.

It is illogical to go from a stealthy B-2 to a less stealthy Global Security bomber.
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There are two reasons that a stealth bomber should NOT have vertical stabilizers. Firstly, it is terrible for side-stealth. Secondly, a large vertical stabilizer is a source of half-wavelength resonance for anti-stealth radars.