New B-21 Raider jet rolled out in America

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Features of B-21 raider:

The B-21 Raider will employ cutting-edge stealth technologies to carry out nuclear missions and long-range bombing.
Each aircraft costing about $2 billion or Rs 1624 Crore to be built.
The B-21 Raider will be a subsonic aircraft.
Speed: Average of 563 miles per hour.
The B-21 Raider, which takes its name from the 1942 Doolittle Raid over Tokyo, will be slightly smaller than the B-2 to increase its range.
Other changes likely include advanced materials used in coatings to make the bomber harder to detect, new ways to control electronic emissions.
So the bomber could spoof adversary radars and disguise itself as another object, and use of new propulsion technologies.
Modernisation:
The bomber is part of the Pentagon’s efforts to modernise all three legs of its nuclear triad, which includes silo-launched nuclear ballistic missiles and submarine-launched warheads, as it shifts from the counterterrorism campaigns of recent decades to meet China’s rapid military modernisation.
The U.S Air Force plans to build 100 that can deploy either nuclear weapons or conventional bombs and can be used with or without a human crew.

Q1) How is B-21 better than B-2?

The new B-21 Raider bears a family resemblance to the B-2 Spirit, but the two bombers will differ substantially in size, and likely in their number of engines and payload. Critically, the B-21 will also be far more advanced in terms of low-observable technology.

Source: The Hindu