McDonnell XP-67 “Moonbat”, an experimental twin-engine, single-seat interceptor built for the United States Army Air Forces (USAAF) during World War II.Featured a futuristic, blended-wing-body design with nacelles integrated smoothly into the fuselage to reduce aerodynamic drag. Powered by two Continental XI-1430 liquid-cooled inverted V-12 engines, which suffered from chronic underpower and overheating issues.

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