German military laboratory with supersonic wind tunnel A-7 in the Third Reich. In this small tunnel in 1939, Nazi engineers achieved an air speed of three times the speed of sound.
Location: Braunschweig, Germany
Date: 1939
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German military laboratory with supersonic wind tunnel A-7 in the Third Reich. In this small tunnel in 1939, Nazi engineers achieved an air speed of three times the speed of sound.
Location: Braunschweig, Germany
Date: 1939