Dolfin, of North American Aviation, was the first laminar 3D body. Its drag, measured during drop tests in the Pacific Ocean (tests reported in 1966 by Bruce H. Carmichael). A reduction in the volumetric drag coefficient of up to 60% could be achieved, compared to conventional low drag body shapes <i> in a totally turbulent boundary layer </i>. This body was formed by the revolution of a generator adopting the profile of the NACA 66-025 Series.
<a href="//commons.wikimedia.org/wiki/User:Bernard_de_Go_Mars" title="User:Bernard de Go Mars">Bernard de Go Mars</a>
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<span class="int-own-work" lang="en">Own work</span>