B-2 Spirit Stealth BomberB 2 Spirit stealth bomber airplane model. The B 2 Spirit is an engineering marvel, defined by a suite of revolutionary technologies that work in concert to achieve its primary mission: to penetrate the worlds most sophisticated defenses undetected. Its capabilities arent the result of a single invention but a careful blending of advanced aerodynamics, exotic materials, and immense computing power. Scale 1 150. Wingspan 14 inches, Length 6 inches