Comments by "John D" (@johnd8892) on "The NACA: The Most Important Government Agency You Never Heard Of." video.

  1. Interested to see this to shed light on the NACA duct used in high speed car racing since the sixties when I read about it named but not explained in car magazines around the world. Even me in Australia. I see I am not alone in hearing of NACA from car racing.
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