Aerospace

Here's An Idea: The Air Force Builds 200 B-21 Stealth Bombers

The B-21 Raider bomber takes its name from both the twenty-first century and the legendary 1942 raid by Gen. James “Jimmy” Doolittle’s force of B-25 Mitchell bombers against targets in and around Tokyo, Japan. In invoking the Doolittle Raid, the Air Force is drawing attention to attack’s audacious nature, the strategic and tactical surprise, and the epic distances General Doolittle and his “raiders” flew to accomplish their mission.

A tailless, batlike aircraft, the official rendering of the B-21 Raider released by the Air Force bears a superficial resemblance to the B-2 Spirit bomber. There are important distinctions, however. The B-21 moves its engines closer to the wing root, where they occupy the juncture between wing and fuselage, whereas the B-2’s twin pairs of General Electric F118-GE-100 engines are distinctly apart from the fuselage on the wing. The Raider’s engine air intakes are angled and not serrated like those on the B-2 Spirit. The Raider also has overwing exhausts to mask the infrared signature of the four engines, unlike the B-2. (Interestingly, this is exactly how the B-2’s exhausts were depicted in an April 1988 artist’s conception of that bomber.)