How far can the b 21 fly?

The Northrop Grumman B-21 Raider is the US Air Force's new long-range strike bomber, rolled out at Palmdale, California, on 2 December 2022 and first flown on 10 November 2023. Its performance figures are among the most tightly held in the programme. The Air Force has published no range, no payload, no ceiling and no speed, and Northrop Grumman describes the aircraft only in general terms as a sixth-generation, long-range, highly survivable bomber that can be refuelled in the air. Any specific range quoted for the B-21 is therefore an estimate by analysts, not an official figure (data of September 2026).

Some inferences are safer than others. The B-21 is a flying wing broadly similar in layout to the B-2, somewhat smaller, with two engines instead of four. Flying wings are efficient cruisers because they carry no fuselage and no tail, and a subsonic bomber built for this role has range as its primary design driver. The B-2 Spirit, whose figures the Air Force does publish, flies about 11,000 km (6,000 NM) without refuelling and has reached targets in the Middle East and Central Asia from Missouri on missions of more than 30 hours with tanker support. It would be surprising if the B-21 had been designed to do much less.

The Air Force's own language supports the picture. Officials have said the aircraft will be based in the continental United States, at Ellsworth in South Dakota first, then Whiteman in Missouri and Dyess in Texas, and will be able to strike any target on the globe. That implies a very long unrefuelled leg combined with aerial refuelling, the same model used for the B-2 and B-52. Estimates in the specialist press have ranged from somewhat under the B-2's figure, because of the smaller size, to comparable, because of more efficient engines and lower structural weight.

The B-21 was conceived with the Pacific theatre in mind, where distances between usable bases and potential targets run to thousands of kilometres and where tanker aircraft would themselves be at risk. A bomber that can cover most of that distance on internal fuel, and that is hard to detect while doing so, reduces the number of tankers exposed and the number of forward bases that must be defended. The Air Force intends to buy at least 100 aircraft, with initial operational capability planned for the later 2020s. Until it releases a fact sheet, the honest answer to the range question is that it is long enough to make the B-2 comparison reasonable, and that nobody outside the programme knows the number.