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B2 spirit bomber
The B-2 Spirit stealth bomber was born out of a need for a highly advanced and stealthy aircraft that could penetrate enemy airspace undetected. The development of the B-2 began in the late 1970s, and it took over a decade to design, test, and build the first prototype. The aircraft was made from a combination of advanced materials, including radar-absorbent composites and thermoplastic, which made it virtually invisible to radar.