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LWH-04 Heinkel He-274

Luftwaffe Huge Mixed - The Heinkel He 274 was a German heavy bomber aircraft with pressurized crew accommodation developed during World War II, designed for high-altitude bombing. Due to the Allied advance through Northwest Europe, the prototypes were abandoned at the factory in German-occupied France where they were being built. They were completed after the war by the French and used for high-altitude research.