X-Nico

Hans Guido Mutke

Only after learning about the supersonic flights of Chuck Yeager in 1947 did he attribute these phenomena to the effects of supersonic flight and claim to have broken the sound barrier—years before Yeager did.

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Mutke also made the controversial claim that he broke the sound barrier in 1945 in an Me 262, but mainstream opinion continues to regard Chuck Yeager as the first person to achieve this milestone in 1947 in a Bell X-1 .

see also