Horten 229 nazista del 1940 “Hitler Stealth Fighter”
B-2 Spirit bombardiere stealth del 1989 della US Air Force
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In the closing weeks of WWII the US military initiated “Operation Paperclip”, an effort by the US Army to capture as much advanced German weapons research as possible, and also to deny that research to advancing Soviet troops. A Horten glider and the nearly complete Ho 229 V3 third prototype airframe were secured and sent to Northrop Aviation for evaluation in the United States, who much later used a flying wing design for the B-2 stealth bomber. During WWII Northrop had been commissioned to develop a large wing-only long-range bomber (XB-35) based on photographs of the Horten’s record-setting glider from the 1930s, but their initial designs suffered controllability issues that were not resolved until after the war.